Hospital prices in St. Louis, MO

33 procedures · 7 hospitals · St. Louis, MO-IL · 3,242 staffed beds across 7 facilities · files published through June 2026

What 33 common medical procedures actually cost at 7 hospitals in metropolitan St. Louis, MO (St. Louis, MO-IL), read from each hospital's own federally-required price-transparency file. Prices here run from about $14 for a CBC to $7,329 for a Heart Cath, and 33 procedures have a published self-pay cash price. Hospitals covered include MERCY HOSPITAL ST LOUIS, MERCY HOSPITAL SOUTH, MISSOURI BAPTIST MEDICAL CENTER. Every figure is tied to a named hospital and its file's publication date. These are price references from public data — not a quote, a bill, or medical or financial advice.

Important — a price reference, not a bill

These figures are aggregated from hospitals' public price-transparency files — not a quote, a bill, an insurance benefit determination, or medical advice. Your actual out-of-pocket cost depends on your insurance plan (deductible, copay, coinsurance, network), the exact service and any complications, and which hospital you use. Always confirm price and coverage with the hospital and your insurer before care.

What the St. Louis numbers show

The widest gap in St. Louis: the same CMP costs 22.1× as much at one hospital as at another

MERCY HOSPITAL SOUTH reports $8 for a CMP; CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST reports $174 for the same billing codes, in the same metro.

St. Louis prices run about 14% below the national middle

Comparing each of 33 procedures against the middle price across every other metro on this site, St. Louis's typical negotiated rate is lower on 25 of them. The median ratio is 0.86× the national middle.

Stress Test is St. Louis's biggest premium; C-Section its biggest bargain

Against the rest of the country, a Stress Test here runs 98% above the $329 national middle at $652, while a C-Section runs 94% below its $11,816 at $686.

Who runs the 7 St. Louis-area hospitals behind these prices

6 non-profit, with 1 not in CMS's general-information register. The largest is MERCY HOSPITAL ST LOUIS at 859 beds. Ownership matters to a price file: for-profit chains and non-profit systems publish self-pay cash prices at very different rates.

33 of 33 St. Louis procedures have a published self-pay cash price

The best-priced of them is a CBC at $18. Hospitals are not required to offer a cash price and most publish one only for outpatient imaging and lab work.

The St. Louis files behind this page span December 2025 to June 2026

Hospitals republish their Standard Charges file roughly once a year and each carries its own date, so these figures were not all filed at the same moment. Every hospital's own publication date is in its entry below.

How the negotiated, cash and chargemaster figures differ — and where each comes from — is explained on the methodology page.

Imaging & scans in St. Louis

Procedure Typical negotiated Range Cash List price
Abdominal Ultrasound (complete) $241 $103–$544 $573 $955
Chest X-ray (2 views) $117 $43–$262 $274 $457
CT Scan of the Abdomen & Pelvis (with contrast) $506 $367–$2,449 $2,839 $4,732
CT Scan of the Chest $313 $151–$768 $709 $1,181
CT Scan of the Head/Brain (without contrast) $261 $176–$884 $860 $1,433
MRI of the Brain (without contrast) $390 $346–$1,336 $1,382 $2,303
MRI of the Knee $370 $341–$1,543 $1,751 $2,694
MRI of the Lower Back (Lumbar Spine) $401 $351–$1,340 $1,423 $2,371
Pregnancy (OB) Ultrasound $163 $131–$546 $600 $923

Abdominal Ultrasound (complete) in St. Louis

Typical negotiated price $241 ·usual $135–$436 ·full spread $103–$544 ·7 hospitals ·self-pay cash $573 ·list $955

Billed as CPT 76700 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same Abdominal Ultrasound costs 5.3× as much across St. Louis-area hospitals: MERCY HOSPITAL SOUTH reports $103, CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST reports $544 — an unusually wide gap for identical billing codes.

The middle half fall between $135 and $436 — the upper end is 3.2× the lower, so the median hides a lot.

Every St. Louis-area hospital price for an Abdominal Ultrasound (7)
Every St. Louis-area hospital reporting an Abdominal Ultrasound in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $241 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL SOUTH $103 57% below median $749 $1,153 Jun 2026
MERCY HOSPITAL JEFFERSON $119 50% below median $1,121 $1,725 Jun 2026
MERCY HOSPITAL WASHINGTON $150 38% below median $527 $810 Jun 2026
MERCY HOSPITAL ST LOUIS $241 at the median $748 $1,150 Jun 2026
ALTON MEMORIAL HOSPITAL $356 48% above median $573 $955 Dec 2025
MISSOURI BAPTIST MEDICAL CENTER $516 114% above median $573 $955 Dec 2025
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST $544 125% above median $573 $955 Dec 2025
How these 7 hospitals label an Abdominal Ultrasound in their own files
MERCY HOSPITAL SOUTH
US Abdomen Complete
MERCY HOSPITAL JEFFERSON
US Abdomen Complete
MERCY HOSPITAL WASHINGTON
US Abdomen Complete
MERCY HOSPITAL ST LOUIS
US Abdomen Complete
ALTON MEMORIAL HOSPITAL
HC Sono Abdominal Complete|UNUSUAL NON-OVERLAPPING SERVICE; HC Sono Abdominal Complete
MISSOURI BAPTIST MEDICAL CENTER
HC Sono Abdominal Complete|UNUSUAL NON-OVERLAPPING SERVICE; HC Sono Abdominal Complete
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST
HC Sono Abdominal Complete|UNUSUAL NON-OVERLAPPING SERVICE; HC Sono Abdominal Complete

Chest X-ray (2 views) in St. Louis

Typical negotiated price $117 ·usual $102–$201 ·full spread $43–$262 ·7 hospitals ·self-pay cash $274 ·list $457

Billed as CPT 71046 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same Chest X-ray costs 6.1× as much across St. Louis-area hospitals: ALTON MEMORIAL HOSPITAL reports $43, CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST reports $262 — an unusually wide gap for identical billing codes.

The middle half fall between $102 and $201 — the upper end is 2.0× the lower, so the median hides a lot.

Every St. Louis-area hospital price for a Chest X-ray (7)
Every St. Louis-area hospital reporting a Chest X-ray in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $117 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
ALTON MEMORIAL HOSPITAL $43 63% below median $274 $457 Dec 2025
MERCY HOSPITAL ST LOUIS $91 22% below median $302 $464 Jun 2026
MERCY HOSPITAL SOUTH $113 4% below median $260 $400 Jun 2026
MERCY HOSPITAL WASHINGTON $117 at the median $282 $434 Jun 2026
MERCY HOSPITAL JEFFERSON $140 20% above median $287 $441 Jun 2026
MISSOURI BAPTIST MEDICAL CENTER $262 123% above median $274 $457 Dec 2025
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST $262 123% above median $274 $457 Dec 2025
How these 7 hospitals label a Chest X-ray in their own files
ALTON MEMORIAL HOSPITAL
HC Xray Chest 2 Views|UNUSUAL NON-OVERLAPPING SERVICE; HC Xray Chest 2 Views|SEPARATE ENCOUNTER; HC Xray Chest 2 Views
MERCY HOSPITAL ST LOUIS
Xr Chest 2 Views
MERCY HOSPITAL SOUTH
Xr Chest 2 Views
MERCY HOSPITAL WASHINGTON
Xr Chest 2 Views
MERCY HOSPITAL JEFFERSON
Xr Chest 2 Views
MISSOURI BAPTIST MEDICAL CENTER
HC Xray Chest 2 Views|UNUSUAL NON-OVERLAPPING SERVICE; HC Xray Chest 2 Views
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST
HC Xray Chest 2 Views|UNUSUAL NON-OVERLAPPING SERVICE; HC Xray Chest 2 Views

CT Scan of the Abdomen & Pelvis (with contrast) in St. Louis

Typical negotiated price $506 ·usual $454–$1,579 ·full spread $367–$2,449 ·7 hospitals ·self-pay cash $2,839 ·list $4,732

Billed as CPT 74177 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same Abdomen/Pelvis CT costs 6.7× as much across St. Louis-area hospitals: MERCY HOSPITAL ST LOUIS reports $367, ALTON MEMORIAL HOSPITAL reports $2,449 — an unusually wide gap for identical billing codes.

The middle half fall between $454 and $1,579 — the upper end is 3.5× the lower, so the median hides a lot.

Every St. Louis-area hospital price for an Abdomen/Pelvis CT (7)
Every St. Louis-area hospital reporting an Abdomen/Pelvis CT in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $506 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL ST LOUIS $367 27% below median $3,182 $4,895 Jun 2026
MERCY HOSPITAL JEFFERSON $431 15% below median $3,931 $6,047 Jun 2026
MERCY HOSPITAL SOUTH $476 6% below median $2,040 $3,139 Jun 2026
MERCY HOSPITAL WASHINGTON $506 at the median $2,718 $4,181 Jun 2026
MISSOURI BAPTIST MEDICAL CENTER $1,426 182% above median $2,839 $4,732 Dec 2025
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST $1,732 242% above median $2,839 $4,732 Dec 2025
ALTON MEMORIAL HOSPITAL $2,449 384% above median $2,839 $4,732 Dec 2025
How these 7 hospitals label an Abdomen/Pelvis CT in their own files
MERCY HOSPITAL ST LOUIS
CT Abd Pelvis With Contrast
MERCY HOSPITAL JEFFERSON
CT Abd Pelvis With Contrast
MERCY HOSPITAL SOUTH
CT Abd Pelvis With Contrast
MERCY HOSPITAL WASHINGTON
CT Abd Pelvis With Contrast
MISSOURI BAPTIST MEDICAL CENTER
HC CT Abd & Pelvis W/Con
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST
HC CT Abd & Pelvis W/Con|TECHNICAL COMPONENT; HC CT Abd & Pelvis W/Con
ALTON MEMORIAL HOSPITAL
HC CT Abd & Pelvis W/Con

CT Scan of the Chest in St. Louis

Typical negotiated price $313 ·usual $226–$749 ·full spread $151–$768 ·7 hospitals ·self-pay cash $709 ·list $1,181

Billed as CPT 71250 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same Chest CT costs 5.1× as much across St. Louis-area hospitals: MERCY HOSPITAL JEFFERSON reports $151, MISSOURI BAPTIST MEDICAL CENTER reports $768 — an unusually wide gap for identical billing codes.

The middle half fall between $226 and $749 — the upper end is 3.3× the lower, so the median hides a lot.

Every St. Louis-area hospital price for a Chest CT (7)
Every St. Louis-area hospital reporting a Chest CT in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $313 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL JEFFERSON $151 52% below median $1,505 $2,316 Jun 2026
MERCY HOSPITAL SOUTH $192 39% below median $695 $1,069 Jun 2026
MERCY HOSPITAL ST LOUIS $261 17% below median $1,295 $1,993 Jun 2026
MERCY HOSPITAL WASHINGTON $313 at the median $1,036 $1,594 Jun 2026
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST $735 135% above median $709 $1,181 Dec 2025
ALTON MEMORIAL HOSPITAL $763 144% above median $709 $1,181 Dec 2025
MISSOURI BAPTIST MEDICAL CENTER $768 145% above median $709 $1,181 Dec 2025
How these 7 hospitals label a Chest CT in their own files
MERCY HOSPITAL JEFFERSON
CT Chest Diag WO Cont
MERCY HOSPITAL SOUTH
CT Chest Diag WO Cont
MERCY HOSPITAL ST LOUIS
CT Chest Diag WO Cont
MERCY HOSPITAL WASHINGTON
CT Chest Diag WO Cont
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST
HC CT Thorax W/O Contrast|UNUSUAL NON-OVERLAPPING SERVICE; HC CT Thorax W/O Contrast
ALTON MEMORIAL HOSPITAL
HC CT Thorax W/O Contrast|UNUSUAL NON-OVERLAPPING SERVICE; HC CT Thorax W/O Contrast
MISSOURI BAPTIST MEDICAL CENTER
HC CT Thorax W/O Contrast

CT Scan of the Head/Brain (without contrast) in St. Louis

Typical negotiated price $261 ·usual $240–$853 ·full spread $176–$884 ·7 hospitals ·self-pay cash $860 ·list $1,433

Billed as CPT 70450 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same Head CT costs 5.0× as much across St. Louis-area hospitals: MERCY HOSPITAL SOUTH reports $176, CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST reports $884 — an unusually wide gap for identical billing codes.

The middle half fall between $240 and $853 — the upper end is 3.6× the lower, so the median hides a lot.

Every St. Louis-area hospital price for a Head CT (7)
Every St. Louis-area hospital reporting a Head CT in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $261 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL SOUTH $176 33% below median $800 $1,230 Jun 2026
MERCY HOSPITAL WASHINGTON $218 16% below median $1,132 $1,742 Jun 2026
MERCY HOSPITAL ST LOUIS $261 at the median $1,415 $2,177 Jun 2026
MERCY HOSPITAL JEFFERSON $261 at the median $1,505 $2,316 Jun 2026
MISSOURI BAPTIST MEDICAL CENTER $853 227% above median $860 $1,433 Dec 2025
ALTON MEMORIAL HOSPITAL $853 227% above median $860 $1,433 Dec 2025
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST $884 239% above median $860 $1,433 Dec 2025
How these 7 hospitals label a Head CT in their own files
MERCY HOSPITAL SOUTH
CT Head/Brain WO Cont
MERCY HOSPITAL WASHINGTON
CT Head/Brain WO Cont
MERCY HOSPITAL ST LOUIS
CT Head/Brain WO Cont
MERCY HOSPITAL JEFFERSON
CT Head/Brain WO Cont
MISSOURI BAPTIST MEDICAL CENTER
HC CT Head/Brain W/O Cont|UNUSUAL NON-OVERLAPPING SERVICE; HC CT Head/Brain W/O Cont|DISTINCT PROCEDURAL SERVICE; HC CT Head/Brain W/O Cont
ALTON MEMORIAL HOSPITAL
HC CT Head/Brain W/O Cont|UNUSUAL NON-OVERLAPPING SERVICE; HC CT Head/Brain W/O Cont|DISTINCT PROCEDURAL SERVICE; HC CT Head/Brain W/O Cont
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST
HC CT Head/Brain W/O Cont|UNUSUAL NON-OVERLAPPING SERVICE; HC CT Head/Brain W/O Cont

MRI of the Brain (without contrast) in St. Louis

Typical negotiated price $390 ·usual $359–$1,018 ·full spread $346–$1,336 ·7 hospitals ·self-pay cash $1,382 ·list $2,303

Billed as CPT 70551 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same Brain MRI costs 3.9× as much across St. Louis-area hospitals: MERCY HOSPITAL WASHINGTON reports $346, ALTON MEMORIAL HOSPITAL reports $1,336 — an unusually wide gap for identical billing codes.

The middle half fall between $359 and $1,018 — the upper end is 2.8× the lower, so the median hides a lot.

Every St. Louis-area hospital price for a Brain MRI (7)
Every St. Louis-area hospital reporting a Brain MRI in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $390 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL WASHINGTON $346 11% below median $1,601 $2,463 Jun 2026
MERCY HOSPITAL JEFFERSON $351 10% below median $1,921 $2,956 Jun 2026
MERCY HOSPITAL SOUTH $367 6% below median $1,266 $1,947 Jun 2026
MERCY HOSPITAL ST LOUIS $390 at the median $1,206 $1,856 Jun 2026
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST $770 97% above median $1,382 $2,303 Dec 2025
MISSOURI BAPTIST MEDICAL CENTER $1,267 225% above median $1,382 $2,303 Dec 2025
ALTON MEMORIAL HOSPITAL $1,336 242% above median $1,382 $2,303 Dec 2025
How these 7 hospitals label a Brain MRI in their own files
MERCY HOSPITAL WASHINGTON
MRI Brain WO for Tysabri Screen; MRI Brain WO Cont
MERCY HOSPITAL JEFFERSON
MRI Brain WO for Tysabri Screen; MRI Brain WO Cont
MERCY HOSPITAL SOUTH
MRI Brain WO Cont
MERCY HOSPITAL ST LOUIS
MRI Brain WO for Tysabri Screen; MRI Brain WO Cont
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST
HC MRI Brain W Stem WO Cont|REDUCED SERVICES; HC MRI Brain W Stem WO Cont
MISSOURI BAPTIST MEDICAL CENTER
HC MRI Brain W Stem WO Cont|UNUSUAL NON-OVERLAPPING SERVICE; HC MRI Brain W Stem WO Cont|REDUCED SERVICES; HC MRI Brain W Stem WO Cont
ALTON MEMORIAL HOSPITAL
HC MRI Brain W Stem WO Cont|UNUSUAL NON-OVERLAPPING SERVICE; HC MRI Brain W Stem WO Cont|REDUCED SERVICES; HC MRI Brain W Stem WO Cont

MRI of the Knee in St. Louis

Typical negotiated price $370 ·usual $358–$1,542 ·full spread $341–$1,543 ·7 hospitals ·self-pay cash $1,751 ·list $2,694

Billed as CPT 73721 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same Knee MRI costs 4.5× as much across St. Louis-area hospitals: MERCY HOSPITAL SOUTH reports $341, ALTON MEMORIAL HOSPITAL reports $1,543 — an unusually wide gap for identical billing codes.

The middle half fall between $358 and $1,542 — the upper end is 4.3× the lower, so the median hides a lot.

Every St. Louis-area hospital price for a Knee MRI (7)
Every St. Louis-area hospital reporting a Knee MRI in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $370 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL SOUTH $341 8% below median $1,751 $2,694 Jun 2026
MERCY HOSPITAL ST LOUIS $351 5% below median $2,323 $3,575 Jun 2026
MERCY HOSPITAL WASHINGTON $366 1% below median $1,962 $3,018 Jun 2026
MERCY HOSPITAL JEFFERSON $370 at the median $2,114 $3,252 Jun 2026
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST $1,542 317% above median $1,434 $2,390 Dec 2025
MISSOURI BAPTIST MEDICAL CENTER $1,543 317% above median $1,434 $2,390 Dec 2025
ALTON MEMORIAL HOSPITAL $1,543 317% above median $1,434 $2,390 Dec 2025
How these 7 hospitals label a Knee MRI in their own files
MERCY HOSPITAL SOUTH
MRI Extr Lwr Jt WO Cont Lt; MRI Extr Lwr Jt WO Cont Rt; MRI Extr Lwr Jt WO Cont Bi
MERCY HOSPITAL ST LOUIS
MRI Extr Lwr Jt WO Cont Bi; MRI Extr Lwr Jt WO Cont Lt
MERCY HOSPITAL WASHINGTON
MRI Extr Lwr Jt WO Cont Lt; MRI Extr Lwr Jt WO Cont Rt; MRI Extr Lwr Jt WO Cont Bi
MERCY HOSPITAL JEFFERSON
MRI Extr Lwr Jt WO Cont Lt; MRI Extr Lwr Jt WO Cont Rt; MRI Extr Lwr Jt WO Cont Bi
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST
HC MR Lo Ext Any Jnt WO Con|RIGHT SIDE; HC MR Lo Ext Any Jnt WO Con
MISSOURI BAPTIST MEDICAL CENTER
HC MR Lo Ext Any Jnt WO Con|LEFT SIDE; HC MR Lo Ext Any Jnt WO Con
ALTON MEMORIAL HOSPITAL
HC MR Lo Ext Any Jnt WO Con|REDUCED SERVICES|LEFT SIDE; HC MR Lo Ext Any Jnt WO Con

MRI of the Lower Back (Lumbar Spine) in St. Louis

Typical negotiated price $401 ·usual $383–$793 ·full spread $351–$1,340 ·7 hospitals ·self-pay cash $1,423 ·list $2,371

Billed as CPT 72148 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same Lumbar MRI costs 3.8× as much across St. Louis-area hospitals: MERCY HOSPITAL ST LOUIS reports $351, CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST reports $1,340 — an unusually wide gap for identical billing codes.

The middle half fall between $383 and $793 — the upper end is 2.1× the lower, so the median hides a lot.

Every St. Louis-area hospital price for a Lumbar MRI (7)
Every St. Louis-area hospital reporting a Lumbar MRI in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $401 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL ST LOUIS $351 12% below median $2,141 $3,294 Jun 2026
MERCY HOSPITAL SOUTH $365 9% below median $1,643 $2,528 Jun 2026
MERCY HOSPITAL JEFFERSON $401 at the median $1,370 $2,108 Jun 2026
MERCY HOSPITAL WASHINGTON $401 at the median $1,882 $2,896 Jun 2026
MISSOURI BAPTIST MEDICAL CENTER $772 93% above median $1,423 $2,371 Dec 2025
ALTON MEMORIAL HOSPITAL $815 104% above median $1,423 $2,371 Dec 2025
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST $1,340 234% above median $1,423 $2,371 Dec 2025
How these 7 hospitals label a Lumbar MRI in their own files
MERCY HOSPITAL ST LOUIS
MRI Lumbar Spine WO Cont
MERCY HOSPITAL SOUTH
MRI Lumbar Spine WO Cont
MERCY HOSPITAL JEFFERSON
MRI Lumbar Spine WO Cont
MERCY HOSPITAL WASHINGTON
MRI Lumbar Spine WO Cont
MISSOURI BAPTIST MEDICAL CENTER
HC MRI Lumbar Spn W/O Cont|REDUCED SERVICES; HC MRI Lumbar Spn W/O Cont
ALTON MEMORIAL HOSPITAL
HC MRI Lumbar Spn W/O Cont|REDUCED SERVICES; HC MRI Lumbar Spn W/O Cont
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST
HC MRI Lumbar Spn W/O Cont

Pregnancy (OB) Ultrasound in St. Louis

Typical negotiated price $163 ·usual $146–$469 ·full spread $131–$546 ·7 hospitals ·self-pay cash $600 ·list $923

Billed as CPT 76805 / 76801 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same OB Ultrasound costs 4.2× as much across St. Louis-area hospitals: MERCY HOSPITAL WASHINGTON reports $131, ALTON MEMORIAL HOSPITAL reports $546 — an unusually wide gap for identical billing codes.

The middle half fall between $146 and $469 — the upper end is 3.2× the lower, so the median hides a lot.

Every St. Louis-area hospital price for an OB Ultrasound (7)
Every St. Louis-area hospital reporting an OB Ultrasound in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $163 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL WASHINGTON $131 20% below median $866 $1,333 Jun 2026
MERCY HOSPITAL SOUTH $136 16% below median $787 $1,211 Jun 2026
MERCY HOSPITAL ST LOUIS $156 4% below median $632 $972 Jun 2026
MERCY HOSPITAL JEFFERSON $163 at the median $600 $923 Jun 2026
MISSOURI BAPTIST MEDICAL CENTER $448 175% above median $554 $923 Dec 2025
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST $491 201% above median $554 $923 Dec 2025
ALTON MEMORIAL HOSPITAL $546 235% above median $554 $923 Dec 2025
How these 7 hospitals label an OB Ultrasound in their own files
MERCY HOSPITAL WASHINGTON
US Preg Uter <14 Weeks Gest; US Preg Uter 14 Wks Or>
MERCY HOSPITAL SOUTH
US Preg Uter <14 Weeks Gest; US Preg Uter 14 Wks Or>
MERCY HOSPITAL ST LOUIS
US Preg Uter <14 Weeks Gest; US Preg Uter 14 Wks Or>
MERCY HOSPITAL JEFFERSON
US Preg Uter <14 Weeks Gest; US Preg Uter 14 Wks Or>
MISSOURI BAPTIST MEDICAL CENTER
HC Sono OB >=14 Wks 1gest; HC Sono OB <14 Wks 1gest
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST
HC Sono OB >=14 Wks 1gest; HC Sono OB <14 Wks 1gest
ALTON MEMORIAL HOSPITAL
HC Sono OB >=14 Wks 1gest; HC Sono OB <14 Wks 1gest

Lab tests in St. Louis

Procedure Typical negotiated Range Cash List price
Complete Blood Count (CBC) $14 $5–$83 $18 $27
Comprehensive Metabolic Panel (CMP) $17 $8–$174 $23 $36
Hemoglobin A1c (Diabetes Test) $21 $8–$27 $34 $56
Lipid Panel (Cholesterol Test) $32 $15–$63 $62 $96
PSA Test (Prostate Screening) $25 $18–$75 $77 $128

Complete Blood Count (CBC) in St. Louis

Typical negotiated price $14 ·usual $10–$37 ·full spread $5–$83 ·7 hospitals ·self-pay cash $18 ·list $27

Billed as CPT 85025 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same CBC costs 17.5× as much across St. Louis-area hospitals: MERCY HOSPITAL JEFFERSON reports $5, CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST reports $83 — an unusually wide gap for identical billing codes.

The middle half fall between $10 and $37 — the upper end is 3.7× the lower, so the median hides a lot.

Every St. Louis-area hospital price for a CBC (7)
Every St. Louis-area hospital reporting a CBC in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $14 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL JEFFERSON $5 66% below median $18 $27 Jun 2026
MERCY HOSPITAL WASHINGTON $8 45% below median $18 $27 Jun 2026
MERCY HOSPITAL SOUTH $12 14% below median $18 $27 Jun 2026
MERCY HOSPITAL ST LOUIS $14 at the median $18 $27 Jun 2026
MISSOURI BAPTIST MEDICAL CENTER $18 32% above median $19 $31 Dec 2025
ALTON MEMORIAL HOSPITAL $55 291% above median $92 $154 Dec 2025
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST $83 496% above median $92 $154 Dec 2025
How these 7 hospitals label a CBC in their own files
MERCY HOSPITAL JEFFERSON
Cbc W Auto Diff
MERCY HOSPITAL WASHINGTON
Cbc W Auto Diff
MERCY HOSPITAL SOUTH
Cbc W Auto Diff
MERCY HOSPITAL ST LOUIS
Cbc W Auto Diff
MISSOURI BAPTIST MEDICAL CENTER
HC Cbc Auto W Auto Diff
ALTON MEMORIAL HOSPITAL
HC Cbc Auto W Auto Diff|UNUSUAL NON-OVERLAPPING SERVICE; HC Cbc Auto W Auto Diff
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST
HC Cbc Auto W Auto Diff|UNUSUAL NON-OVERLAPPING SERVICE; HC Cbc Auto W Auto Diff

Comprehensive Metabolic Panel (CMP) in St. Louis

Typical negotiated price $17 ·usual $10–$72 ·full spread $8–$174 ·7 hospitals ·self-pay cash $23 ·list $36

Billed as CPT 80053 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same CMP costs 22.1× as much across St. Louis-area hospitals: MERCY HOSPITAL SOUTH reports $8, CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST reports $174 — an unusually wide gap for identical billing codes.

The middle half fall between $10 and $72 — the upper end is 7.0× the lower, so the median hides a lot.

Every St. Louis-area hospital price for a CMP (7)
Every St. Louis-area hospital reporting a CMP in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $17 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL SOUTH $8 53% below median $23 $36 Jun 2026
MERCY HOSPITAL ST LOUIS $9 47% below median $23 $36 Jun 2026
MERCY HOSPITAL WASHINGTON $12 32% below median $23 $36 Jun 2026
MERCY HOSPITAL JEFFERSON $17 at the median $23 $36 Jun 2026
MISSOURI BAPTIST MEDICAL CENTER $25 48% above median $25 $42 Dec 2025
ALTON MEMORIAL HOSPITAL $118 601% above median $215 $359 Dec 2025
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST $174 932% above median $215 $359 Dec 2025
How these 7 hospitals label a CMP in their own files
MERCY HOSPITAL SOUTH
Comprehensive Metabolic Panel
MERCY HOSPITAL ST LOUIS
Comprehensive Metabolic Panel
MERCY HOSPITAL WASHINGTON
Comprehensive Metabolic Panel
MERCY HOSPITAL JEFFERSON
Comprehensive Metabolic Panel
MISSOURI BAPTIST MEDICAL CENTER
HC Comp Metabolic Panel
ALTON MEMORIAL HOSPITAL
HC Comp Metabolic Panel|UNUSUAL NON-OVERLAPPING SERVICE; HC Comp Metabolic Panel
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST
HC Comp Metabolic Panel

Hemoglobin A1c (Diabetes Test) in St. Louis

Typical negotiated price $21 ·usual $11–$23 ·full spread $8–$27 ·7 hospitals ·self-pay cash $34 ·list $56

Billed as CPT 83036 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same A1c Test costs 3.3× as much across St. Louis-area hospitals: MERCY HOSPITAL JEFFERSON reports $8, CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST reports $27 — an unusually wide gap for identical billing codes.

The middle half fall between $11 and $23 — the upper end is 2.1× the lower, so the median hides a lot.

Every St. Louis-area hospital price for an A1c Test (7)
Every St. Louis-area hospital reporting an A1c Test in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $21 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL JEFFERSON $8 60% below median $50 $77 Jun 2026
MERCY HOSPITAL SOUTH $11 49% below median $38 $59 Jun 2026
MERCY HOSPITAL WASHINGTON $12 44% below median $48 $74 Jun 2026
MERCY HOSPITAL ST LOUIS $21 at the median $34 $53 Jun 2026
MISSOURI BAPTIST MEDICAL CENTER $23 11% above median $23 $39 Dec 2025
ALTON MEMORIAL HOSPITAL $23 11% above median $34 $56 Dec 2025
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST $27 31% above median $34 $56 Dec 2025
How these 7 hospitals label an A1c Test in their own files
MERCY HOSPITAL JEFFERSON
POC Hemoglobin A1c Glycated; Hemoglobin A1c Glycated
MERCY HOSPITAL SOUTH
POC Hemoglobin A1c Glycated; Hemoglobin A1c Glycated
MERCY HOSPITAL WASHINGTON
POC Hemoglobin A1c Glycated; Hemoglobin A1c Glycated
MERCY HOSPITAL ST LOUIS
POC Hemoglobin A1c Glycated; Hemoglobin A1c Glycated
MISSOURI BAPTIST MEDICAL CENTER
HC Hemoglobin Glycosylated
ALTON MEMORIAL HOSPITAL
HC Hemoglobin Glycosylated|UNUSUAL NON-OVERLAPPING SERVICE; HC Hemoglobin Glycosylated|WAIVER OF LIABILITY ON FILE; HC Hemoglobin Glycosylated
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST
HC Hemoglobin Glycosylated

Lipid Panel (Cholesterol Test) in St. Louis

Typical negotiated price $32 ·usual $19–$45 ·full spread $15–$63 ·7 hospitals ·self-pay cash $62 ·list $96

Billed as CPT 80061 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same Lipid Panel costs 4.3× as much across St. Louis-area hospitals: MERCY HOSPITAL SOUTH reports $15, MERCY HOSPITAL JEFFERSON reports $63 — an unusually wide gap for identical billing codes.

The middle half fall between $19 and $45 — the upper end is 2.4× the lower, so the median hides a lot.

Every St. Louis-area hospital price for a Lipid Panel (7)
Every St. Louis-area hospital reporting a Lipid Panel in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $32 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL SOUTH $15 53% below median $62 $96 Jun 2026
MERCY HOSPITAL ST LOUIS $15 51% below median $88 $136 Jun 2026
MERCY HOSPITAL WASHINGTON $23 28% below median $128 $197 Jun 2026
MISSOURI BAPTIST MEDICAL CENTER $32 at the median $32 $54 Dec 2025
ALTON MEMORIAL HOSPITAL $44 39% above median $57 $95 Dec 2025
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST $46 46% above median $57 $95 Dec 2025
MERCY HOSPITAL JEFFERSON $63 99% above median $113 $174 Jun 2026
How these 7 hospitals label a Lipid Panel in their own files
MERCY HOSPITAL SOUTH
POC Lipid Panel; Lipid Panel
MERCY HOSPITAL ST LOUIS
POC Lipid Panel; Lipid Panel
MERCY HOSPITAL WASHINGTON
Lipid Panel
MISSOURI BAPTIST MEDICAL CENTER
HC Lipid Panel
ALTON MEMORIAL HOSPITAL
HC Lipid Panel|UNUSUAL NON-OVERLAPPING SERVICE; HC Lipid Panel
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST
HC Lipid Panel
MERCY HOSPITAL JEFFERSON
Lipid Panel

PSA Test (Prostate Screening) in St. Louis

Typical negotiated price $25 ·usual $22–$53 ·full spread $18–$75 ·7 hospitals ·self-pay cash $77 ·list $128

Billed as CPT 84153 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same PSA Test costs 4.2× as much across St. Louis-area hospitals: MERCY HOSPITAL SOUTH reports $18, ALTON MEMORIAL HOSPITAL reports $75 — an unusually wide gap for identical billing codes.

The middle half fall between $22 and $53 — the upper end is 2.4× the lower, so the median hides a lot.

Every St. Louis-area hospital price for a PSA Test (7)
Every St. Louis-area hospital reporting a PSA Test in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $25 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL SOUTH $18 28% below median $70 $107 Jun 2026
MERCY HOSPITAL ST LOUIS $22 11% below median $92 $141 Jun 2026
MERCY HOSPITAL JEFFERSON $22 10% below median $80 $124 Jun 2026
MERCY HOSPITAL WASHINGTON $25 at the median $71 $109 Jun 2026
MISSOURI BAPTIST MEDICAL CENTER $44 78% above median $77 $128 Dec 2025
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST $62 151% above median $77 $128 Dec 2025
ALTON MEMORIAL HOSPITAL $75 205% above median $77 $128 Dec 2025
How these 7 hospitals label a PSA Test in their own files
MERCY HOSPITAL SOUTH
Psa Total Diagnostic; Psa Ultrasensitive
MERCY HOSPITAL ST LOUIS
Psa Total Diagnostic; Psa Ultrasensitive
MERCY HOSPITAL JEFFERSON
Psa Total Diagnostic; Psa Ultrasensitive
MERCY HOSPITAL WASHINGTON
Psa Total Diagnostic; Psa Ultrasensitive
MISSOURI BAPTIST MEDICAL CENTER
HC Prostat Spec Ag Tot Diag
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST
HC Prostat Spec Ag Tot Diag
ALTON MEMORIAL HOSPITAL
HC Prostat Spec Ag Tot Diag

Screenings in St. Louis

Procedure Typical negotiated Range Cash List price
Screening Mammogram $152 $95–$323 $220 $349

Screening Mammogram in St. Louis

Typical negotiated price $152 ·usual $135–$205 ·full spread $95–$323 ·7 hospitals ·self-pay cash $220 ·list $349

Billed as CPT 77067 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same Mammogram costs 3.4× as much across St. Louis-area hospitals: MERCY HOSPITAL WASHINGTON reports $95, MERCY HOSPITAL JEFFERSON reports $323 — an unusually wide gap for identical billing codes.

The middle half fall between $135 and $205 — the upper end is 1.5× the lower, so the median hides a lot.

Every St. Louis-area hospital price for a Mammogram (7)
Every St. Louis-area hospital reporting a Mammogram in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $152 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL WASHINGTON $95 38% below median $233 $359 Jun 2026
MERCY HOSPITAL SOUTH $118 23% below median $220 $339 Jun 2026
MISSOURI BAPTIST MEDICAL CENTER $152 at the median $209 $349 Dec 2025
ALTON MEMORIAL HOSPITAL $152 at the median $209 $349 Dec 2025
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST $152 at the median $209 $349 Dec 2025
MERCY HOSPITAL ST LOUIS $259 70% above median $228 $351 Jun 2026
MERCY HOSPITAL JEFFERSON $323 112% above median $280 $430 Jun 2026
How these 7 hospitals label a Mammogram in their own files
MERCY HOSPITAL WASHINGTON
Mamm Scrn Bilat Implant W Cad; Mamm Scrn Right W Cad; Mamm Scrn Left W Cad
MERCY HOSPITAL SOUTH
Mamm Scrn Bilat Implant W Cad; Mamm Scrn Right W Cad; Mamm Scrn Left W Cad
MISSOURI BAPTIST MEDICAL CENTER
HC Screening Mamm Bi With Cad|REDUCED SERVICES|LEFT SIDE; HC Screening Mamm Bi With Cad|REDUCED SERVICES; HC Screening Mamm Bi With Cad; HC Screen Mamm Bilat Ddi
ALTON MEMORIAL HOSPITAL
HC Screening Mamm Bi With Cad|REDUCED SERVICES|RIGHT SIDE; HC Screening Mamm Bi With Cad
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST
HC Screening Mamm Bi With Cad|REDUCED SERVICES|LEFT SIDE; HC Screening Mamm Bi With Cad
MERCY HOSPITAL ST LOUIS
Mamm Scrn Bilat Implant W Cad; Mamm Scrn Right W Cad; Mamm Scrn Left W Cad
MERCY HOSPITAL JEFFERSON
Mamm Scrn Bilat Implant W Cad; Mamm Scrn Right W Cad; Mamm Scrn Left W Cad

Heart & cardiac in St. Louis

Procedure Typical negotiated Range Cash List price
Cardiac Catheterization (Coronary Angiogram) $7,329 $4,043–$12,371 $9,786 $15,056
Cardiac Stress Test $652 $345–$1,000 $1,341 $2,063
Echocardiogram (Heart Ultrasound) $857 $684–$5,792 $4,692 $7,219

Cardiac Catheterization (Coronary Angiogram) in St. Louis

Typical negotiated price $7,329 ·usual $4,051–$11,938 ·full spread $4,043–$12,371 ·7 hospitals ·self-pay cash $9,786 ·list $15,056

Billed as CPT 93458 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same Heart Cath costs 3.1× as much across St. Louis-area hospitals: MERCY HOSPITAL ST LOUIS reports $4,043, ALTON MEMORIAL HOSPITAL reports $12,371 — an unusually wide gap for identical billing codes.

The middle half fall between $4,051 and $11,938 — the upper end is 2.9× the lower, so the median hides a lot.

Every St. Louis-area hospital price for a Heart Cath (7)
Every St. Louis-area hospital reporting a Heart Cath in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $7,329 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL ST LOUIS $4,043 45% below median $8,663 $13,328 Jun 2026
MERCY HOSPITAL SOUTH $4,043 45% below median $5,370 $8,262 Jun 2026
MERCY HOSPITAL WASHINGTON $4,059 45% below median $9,004 $13,853 Jun 2026
MERCY HOSPITAL JEFFERSON $7,329 at the median $9,786 $15,056 Jun 2026
MISSOURI BAPTIST MEDICAL CENTER $11,929 63% above median $27,519 $45,865 Dec 2025
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST $11,946 63% above median $25,525 $42,541 Dec 2025
ALTON MEMORIAL HOSPITAL $12,371 69% above median $29,611 $49,352 Dec 2025
How these 7 hospitals label a Heart Cath in their own files
MERCY HOSPITAL ST LOUIS
Lt Heart Artery/Ventricle Angio
MERCY HOSPITAL SOUTH
Lt Heart Artery/Ventricle Angio
MERCY HOSPITAL WASHINGTON
Lt Heart Artery/Ventricle Angio
MERCY HOSPITAL JEFFERSON
Lt Heart Artery/Ventricle Angio
MISSOURI BAPTIST MEDICAL CENTER
Cath Plmt L Hrt & Arts W/Njx & Angio Img S&I|UNUSUAL NON-OVERLAPPING SERVICE; Cath Plmt L Hrt & Arts W/Njx & Angio Img S&I|DISTINCT PROCEDURAL SERVICE; Cath Plmt L Hrt & Arts W/Njx & Angio Img S&I; HC Left Heart/Cor/Lv Angio
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST
Cath Plmt L Hrt & Arts W/Njx & Angio Img S&I|DISCONTINUED OUT-PATIENT HOSPITAL/AMBULATORY SURGERY CENTER (ASC) PROCEDURE; Cath Plmt L Hrt & Arts W/Njx & Angio Img S&I|UNUSUAL NON-OVERLAPPING SERVICE; Cath Plmt L Hrt & Arts W/Njx & Angio Img S&I|DISTINCT PROCEDURAL SERVICE; Cath Plmt L Hrt & Arts W/Njx & Angio Img S&I|SEPARATE ENCOUNTER (and 2 more line items)
ALTON MEMORIAL HOSPITAL
Cath Plmt L Hrt & Arts W/Njx & Angio Img S&I|UNUSUAL NON-OVERLAPPING SERVICE; Cath Plmt L Hrt & Arts W/Njx & Angio Img S&I|DISTINCT PROCEDURAL SERVICE; Cath Plmt L Hrt & Arts W/Njx & Angio Img S&I; HC Left Heart/Cor/Lv Angio

Cardiac Stress Test in St. Louis

Typical negotiated price $652 ·usual $380–$957 ·full spread $345–$1,000 ·7 hospitals ·self-pay cash $1,341 ·list $2,063

Billed as CPT 93015 / 93017 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same Stress Test costs 2.9× as much across St. Louis-area hospitals: MERCY HOSPITAL WASHINGTON reports $345, CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST reports $1,000 — a wide gap for identical billing codes.

The middle half fall between $380 and $957 — the upper end is 2.5× the lower, so the median hides a lot.

Every St. Louis-area hospital price for a Stress Test (7)
Every St. Louis-area hospital reporting a Stress Test in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $652 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL WASHINGTON $345 47% below median $1,704 $2,621 Jun 2026
MERCY HOSPITAL SOUTH $378 42% below median $1,574 $2,422 Jun 2026
MERCY HOSPITAL ST LOUIS $381 42% below median $1,341 $2,063 Jun 2026
MERCY HOSPITAL JEFFERSON $652 at the median $1,364 $2,098 Jun 2026
ALTON MEMORIAL HOSPITAL $913 40% above median $921 $1,535 Dec 2025
MISSOURI BAPTIST MEDICAL CENTER $1,000 53% above median $921 $1,535 Dec 2025
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST $1,000 53% above median $921 $1,535 Dec 2025
How these 7 hospitals label a Stress Test in their own files
MERCY HOSPITAL WASHINGTON
Cardiac Stress Test Tracing Only
MERCY HOSPITAL SOUTH
Cardiac Stress Test Tracing Only
MERCY HOSPITAL ST LOUIS
Cardiac Stress Test Tracing Only
MERCY HOSPITAL JEFFERSON
Cardiac Stress Test Tracing Only
ALTON MEMORIAL HOSPITAL
HC Stress Test Treadmill|UNUSUAL NON-OVERLAPPING SERVICE; HC Stress Test Treadmill|REDUCED SERVICES; HC Stress Test Treadmill
MISSOURI BAPTIST MEDICAL CENTER
HC Stress Test Treadmill|UNUSUAL NON-OVERLAPPING SERVICE; HC Stress Test Treadmill
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST
HC Stress Test Treadmill|UNUSUAL NON-OVERLAPPING SERVICE; HC Stress Test Treadmill

Echocardiogram (Heart Ultrasound) in St. Louis

Typical negotiated price $857 ·usual $759–$5,217 ·full spread $684–$5,792 ·7 hospitals ·self-pay cash $4,692 ·list $7,219

Billed as CPT 93306 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same Echocardiogram costs 8.5× as much across St. Louis-area hospitals: MERCY HOSPITAL WASHINGTON reports $684, ALTON MEMORIAL HOSPITAL reports $5,792 — an unusually wide gap for identical billing codes.

The middle half fall between $759 and $5,217 — the upper end is 6.9× the lower, so the median hides a lot.

Every St. Louis-area hospital price for an Echocardiogram (7)
Every St. Louis-area hospital reporting an Echocardiogram in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $857 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL WASHINGTON $684 20% below median $4,692 $7,219 Jun 2026
MERCY HOSPITAL JEFFERSON $709 17% below median $3,756 $5,778 Jun 2026
MERCY HOSPITAL SOUTH $810 5% below median $4,058 $6,243 Jun 2026
MERCY HOSPITAL ST LOUIS $857 at the median $3,895 $5,992 Jun 2026
MISSOURI BAPTIST MEDICAL CENTER $4,954 478% above median $5,346 $8,910 Dec 2025
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST $5,480 540% above median $5,346 $8,910 Dec 2025
ALTON MEMORIAL HOSPITAL $5,792 576% above median $5,346 $8,910 Dec 2025
How these 7 hospitals label an Echocardiogram in their own files
MERCY HOSPITAL WASHINGTON
Echo 2d W/M-Mode & Dopp Comp
MERCY HOSPITAL JEFFERSON
Echo 2d W/M-Mode & Dopp Comp
MERCY HOSPITAL SOUTH
Echo 2d W/M-Mode & Dopp Comp
MERCY HOSPITAL ST LOUIS
Echo 2d W/M-Mode & Dopp Comp
MISSOURI BAPTIST MEDICAL CENTER
HC Tte Cmplt W Dopp WO Cont
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST
HC Tte Cmplt W Dopp WO Cont
ALTON MEMORIAL HOSPITAL
HC Tte Cmplt W Dopp WO Cont

Endoscopy in St. Louis

Procedure Typical negotiated Range Cash List price
Colonoscopy with Biopsy $1,296 $1,089–$1,850 $3,409 $5,681
Diagnostic Colonoscopy $1,630 $914–$1,850 $2,134 $3,376
Upper GI Endoscopy (EGD) $1,054 $891–$1,850 $1,959 $3,197

Colonoscopy with Biopsy in St. Louis

Typical negotiated price $1,296 ·usual $1,176–$1,811 ·full spread $1,089–$1,850 ·7 hospitals ·self-pay cash $3,409 ·list $5,681

Billed as CPT 45380 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same Colonoscopy w/ Biopsy costs 70% more across St. Louis-area hospitals: MERCY HOSPITAL SOUTH reports $1,089, ALTON MEMORIAL HOSPITAL reports $1,850 — a modest gap for identical billing codes.

The middle half fall between $1,176 and $1,811 — the upper end is 1.5× the lower, so the median hides a lot.

Every St. Louis-area hospital price for a Colonoscopy w/ Biopsy (7)
Every St. Louis-area hospital reporting a Colonoscopy w/ Biopsy in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $1,296 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL SOUTH $1,089 16% below median $3,242 $4,988 Jun 2026
MERCY HOSPITAL ST LOUIS $1,176 9% below median $4,679 $7,198 Jun 2026
MERCY HOSPITAL JEFFERSON $1,176 9% below median $5,961 $9,171 Jun 2026
MERCY HOSPITAL WASHINGTON $1,296 at the median $4,412 $6,788 Jun 2026
MISSOURI BAPTIST MEDICAL CENTER $1,772 37% above median $3,102 $5,169 Dec 2025
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST $1,850 43% above median $3,369 $5,615 Dec 2025
ALTON MEMORIAL HOSPITAL $1,850 43% above median $3,409 $5,681 Dec 2025
How these 7 hospitals label a Colonoscopy w/ Biopsy in their own files
MERCY HOSPITAL SOUTH
GI Colo Biopsy Cold Pf
MERCY HOSPITAL ST LOUIS
GI Colo Biopsy Cold Pf
MERCY HOSPITAL JEFFERSON
GI Colo Biopsy Cold Pf
MERCY HOSPITAL WASHINGTON
GI Colo Biopsy Cold Pf
MISSOURI BAPTIST MEDICAL CENTER
Colonoscopy W/Biopsy Single/Multiple|DISCONTINUED OUT-PATIENT HOSPITAL/AMBULATORY SURGERY CENTER (ASC) PROCEDURE AFTER A; Colonoscopy W/Biopsy Single/Multiple|CLRCTAL SCREEN TO DIAGN|UNUSUAL NON-OVERLAPPING SERVICE; Colonoscopy W/Biopsy Single/Multiple|UNUSUAL NON-OVERLAPPING SERVICE|CLRCTAL SCREEN TO DIAGN; Colonoscopy W/Biopsy Single/Multiple|CLRCTAL SCREEN TO DIAGN|DISTINCT PROCEDURAL SERVICE (and 11 more line items)
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST
Colonoscopy W/Biopsy Single/Multiple|CLRCTAL SCREEN TO DIAGN|UNUSUAL NON-OVERLAPPING SERVICE; Colonoscopy W/Biopsy Single/Multiple|UNUSUAL NON-OVERLAPPING SERVICE|CLRCTAL SCREEN TO DIAGN; Colonoscopy W/Biopsy Single/Multiple|CLRCTAL SCREEN TO DIAGN|DISTINCT PROCEDURAL SERVICE; Colonoscopy W/Biopsy Single/Multiple|CLRCTAL SCREEN TO DIAGN|SEPARATE STRUCTURE (and 8 more line items)
ALTON MEMORIAL HOSPITAL
Colonoscopy W/Biopsy Single/Multiple|CLRCTAL SCREEN TO DIAGN|UNUSUAL NON-OVERLAPPING SERVICE; Colonoscopy W/Biopsy Single/Multiple|UNUSUAL NON-OVERLAPPING SERVICE|CLRCTAL SCREEN TO DIAGN; Colonoscopy W/Biopsy Single/Multiple|CLRCTAL SCREEN TO DIAGN|DISTINCT PROCEDURAL SERVICE; Colonoscopy W/Biopsy Single/Multiple|DISTINCT PROCEDURAL SERVICE|CLRCTAL SCREEN TO DIAGN (and 10 more line items)

Diagnostic Colonoscopy in St. Louis

Typical negotiated price $1,630 ·usual $999–$1,811 ·full spread $914–$1,850 ·7 hospitals ·self-pay cash $2,134 ·list $3,376

Billed as CPT 45378 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same Colonoscopy costs 2.0× as much across St. Louis-area hospitals: MERCY HOSPITAL ST LOUIS reports $914, ALTON MEMORIAL HOSPITAL reports $1,850 — a wide gap for identical billing codes.

The middle half fall between $999 and $1,811 — the upper end is 1.8× the lower, so the median hides a lot.

Every St. Louis-area hospital price for a Colonoscopy (7)
Every St. Louis-area hospital reporting a Colonoscopy in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $1,630 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL ST LOUIS $914 44% below median $1,276 $1,964 Jun 2026
MERCY HOSPITAL JEFFERSON $952 42% below median $2,543 $3,913 Jun 2026
MERCY HOSPITAL WASHINGTON $1,046 36% below median $2,194 $3,376 Jun 2026
MERCY HOSPITAL SOUTH $1,630 at the median $1,702 $2,618 Jun 2026
MISSOURI BAPTIST MEDICAL CENTER $1,772 9% above median $2,134 $3,556 Dec 2025
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST $1,850 13% above median $1,332 $2,221 Dec 2025
ALTON MEMORIAL HOSPITAL $1,850 13% above median $3,769 $6,281 Dec 2025
How these 7 hospitals label a Colonoscopy in their own files
MERCY HOSPITAL ST LOUIS
Colonoscopy Diagnostic Mlp; Colonoscopy Diagnostic Pf; GI Colonoscopy
MERCY HOSPITAL JEFFERSON
GI Colonoscopy
MERCY HOSPITAL WASHINGTON
GI Colonoscopy
MERCY HOSPITAL SOUTH
GI Colonoscopy
MISSOURI BAPTIST MEDICAL CENTER
Colonoscopy Flx Dx W/Collj Spec When Pfrmd|DISCONTINUED OUT-PATIENT HOSPITAL/AMBULATORY SURGERY CENTER (ASC) PROCEDURE A; Colonoscopy Flx Dx W/Collj Spec When Pfrmd|CLRCTAL SCREEN TO DIAGN|DISTINCT PROCEDURAL SERVICE; Colonoscopy Flx Dx W/Collj Spec When Pfrmd|UNUSUAL NON-OVERLAPPING SERVICE; Colonoscopy Flx Dx W/Collj Spec When Pfrmd|CLRCTAL SCREEN TO DIAGN (and 2 more line items)
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST
Colonoscopy Flx Dx W/Collj Spec When Pfrmd|DISCONTINUED OUT-PATIENT HOSPITAL/AMBULATORY SURGERY CENTER (ASC) PROCEDURE A; Colonoscopy Flx Dx W/Collj Spec When Pfrmd|DISCONTINUED PROCEDURE|CLRCTAL SCREEN TO DIAGN; Colonoscopy Flx Dx W/Collj Spec When Pfrmd|CLRCTAL SCREEN TO DIAGN; Colonoscopy Flx Dx W/Collj Spec When Pfrmd|REDUCED SERVICES (and 2 more line items)
ALTON MEMORIAL HOSPITAL
Colonoscopy Flx Dx W/Collj Spec When Pfrmd|DISCONTINUED OUT-PATIENT HOSPITAL/AMBULATORY SURGERY CENTER (ASC) PROCEDURE A; Colonoscopy Flx Dx W/Collj Spec When Pfrmd|UNUSUAL NON-OVERLAPPING SERVICE; Colonoscopy Flx Dx W/Collj Spec When Pfrmd|DISTINCT PROCEDURAL SERVICE; Colonoscopy Flx Dx W/Collj Spec When Pfrmd|CLRCTAL SCREEN TO DIAGN (and 3 more line items)

Upper GI Endoscopy (EGD) in St. Louis

Typical negotiated price $1,054 ·usual $1,009–$1,681 ·full spread $891–$1,850 ·7 hospitals ·self-pay cash $1,959 ·list $3,197

Billed as CPT 43235 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same Upper Endoscopy costs 2.1× as much across St. Louis-area hospitals: MERCY HOSPITAL WASHINGTON reports $891, ALTON MEMORIAL HOSPITAL reports $1,850 — a wide gap for identical billing codes.

The middle half fall between $1,009 and $1,681 — the upper end is 1.7× the lower, so the median hides a lot.

Every St. Louis-area hospital price for an Upper Endoscopy (7)
Every St. Louis-area hospital reporting an Upper Endoscopy in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $1,054 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL WASHINGTON $891 15% below median $1,801 $2,771 Jun 2026
MERCY HOSPITAL ST LOUIS $968 8% below median $1,038 $1,598 Jun 2026
MERCY HOSPITAL JEFFERSON $1,050 at the median $3,183 $4,897 Jun 2026
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST $1,054 at the median $848 $1,414 Dec 2025
MERCY HOSPITAL SOUTH $1,590 51% above median $2,078 $3,197 Jun 2026
MISSOURI BAPTIST MEDICAL CENTER $1,772 68% above median $1,959 $3,264 Dec 2025
ALTON MEMORIAL HOSPITAL $1,850 76% above median $2,719 $4,532 Dec 2025
How these 7 hospitals label an Upper Endoscopy in their own files
MERCY HOSPITAL WASHINGTON
GI Upper Endoscopy Complex
MERCY HOSPITAL ST LOUIS
Ugi Endoscopy Simple Exam Mlp; Ugi Endoscopy Simple Exam Pf; GI Upper Endoscopy Complex
MERCY HOSPITAL JEFFERSON
GI Upper Endoscopy Complex
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST
Esophagogastroduodenoscopy Transoral Diagnostic|DISCONTINUED OUT-PATIENT HOSPITAL/AMBULATORY SURGERY CENTER (ASC) PROCED; Esophagogastroduodenoscopy Transoral Diagnostic; HC Egd Endoscopy
MERCY HOSPITAL SOUTH
GI Upper Endoscopy Complex
MISSOURI BAPTIST MEDICAL CENTER
Esophagogastroduodenoscopy Transoral Diagnostic|DISCONTINUED OUT-PATIENT HOSPITAL/AMBULATORY SURGERY CENTER (ASC) PROCED; Esophagogastroduodenoscopy Transoral Diagnostic|UNUSUAL NON-OVERLAPPING SERVICE; Esophagogastroduodenoscopy Transoral Diagnostic|DISTINCT PROCEDURAL SERVICE; Esophagogastroduodenoscopy Transoral Diagnostic|SEPARATE STRUCTURE (and 2 more line items)
ALTON MEMORIAL HOSPITAL
Esophagogastroduodenoscopy Transoral Diagnostic|DISCONTINUED OUT-PATIENT HOSPITAL/AMBULATORY SURGERY CENTER (ASC) PROCED; Esophagogastroduodenoscopy Transoral Diagnostic|UNUSUAL NON-OVERLAPPING SERVICE; Esophagogastroduodenoscopy Transoral Diagnostic|DISTINCT PROCEDURAL SERVICE; Esophagogastroduodenoscopy Transoral Diagnostic (and 1 more line item)

Surgery & procedures in St. Louis

Procedure Typical negotiated Range Cash List price
Carpal Tunnel Release Surgery $3,121 $1,919–$5,685 $6,525 $10,039
Cataract Surgery (with Lens Implant) $2,644 $1,944–$3,234 $5,615 $8,639
Hip or Knee Replacement $3,667 $3,478–$22,769 $38,991 $59,986
Inguinal Hernia Repair $6,064 $4,969–$7,630 $10,765 $17,389
Laparoscopic Appendectomy (Appendix Removal) $6,182 $5,697–$6,957 $11,810 $18,170
Laparoscopic Gallbladder Removal $6,243 $5,940–$8,328 $10,309 $15,861
Tonsillectomy $4,452 $3,258–$5,814 $5,985 $9,207

Carpal Tunnel Release Surgery in St. Louis

Typical negotiated price $3,121 ·usual $2,975–$5,685 ·full spread $1,919–$5,685 ·7 hospitals ·self-pay cash $6,525 ·list $10,039

Billed as CPT 64721 / 29848 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same Carpal Tunnel Surgery costs 3.0× as much across St. Louis-area hospitals: MERCY HOSPITAL ST LOUIS reports $1,919, ALTON MEMORIAL HOSPITAL reports $5,685 — a wide gap for identical billing codes.

The middle half fall between $2,975 and $5,685 — the upper end is 1.9× the lower, so the median hides a lot.

Every St. Louis-area hospital price for a Carpal Tunnel Surgery (7)
Every St. Louis-area hospital reporting a Carpal Tunnel Surgery in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $3,121 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL ST LOUIS $1,919 39% below median $5,144 $7,913 Jun 2026
MERCY HOSPITAL JEFFERSON $2,975 5% below median $6,525 $10,039 Jun 2026
MERCY HOSPITAL WASHINGTON $2,975 5% below median $5,737 $8,826 Jun 2026
MERCY HOSPITAL SOUTH $3,121 at the median $4,072 $6,264 Jun 2026
MISSOURI BAPTIST MEDICAL CENTER $5,685 82% above median $8,120 $13,533 Dec 2025
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST $5,685 82% above median $15,554 $25,924 Dec 2025
ALTON MEMORIAL HOSPITAL $5,685 82% above median $16,302 $27,170 Dec 2025
How these 7 hospitals label a Carpal Tunnel Surgery in their own files
MERCY HOSPITAL ST LOUIS
Neuroplas/ Tranposit Median Nerve at Carp Tiunn Pf; Ndsc Wrst Surg W/Rls Transvrs Carpl Ligm
MERCY HOSPITAL JEFFERSON
Neuroplas/ Tranposit Median Nerve at Carp Tiunn Pf
MERCY HOSPITAL WASHINGTON
Neuroplas/ Tranposit Median Nerve at Carp Tiunn Pf
MERCY HOSPITAL SOUTH
Neuroplas/ Tranposit Median Nerve at Carp Tiunn Pf; Ndsc Wrst Surg W/Rls Transvrs Carpl Ligm
MISSOURI BAPTIST MEDICAL CENTER
Neuroplasty &/Transpos Median Nrv Carpal Tunne|RIGHT SIDE; Neuroplasty &/Transpos Median Nrv Carpal Tunne|LEFT SIDE; HC Revise Median N/Carpal Tunnel Surg
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST
Neuroplasty &/Transpos Median Nrv Carpal Tunne|DISCONTINUED OUT-PATIENT HOSPITAL/AMBULATORY SURGERY CENTER (ASC) PROCEDU; Neuroplasty &/Transpos Median Nrv Carpal Tunne|RIGHT SIDE|UNUSUAL NON-OVERLAPPING SERVICE; Neuroplasty &/Transpos Median Nrv Carpal Tunne|UNUSUAL NON-OVERLAPPING SERVICE|RIGHT SIDE; Neuroplasty &/Transpos Median Nrv Carpal Tunne|UNUSUAL NON-OVERLAPPING SERVICE|LEFT SIDE (and 7 more line items)
ALTON MEMORIAL HOSPITAL
Neuroplasty &/Transpos Median Nrv Carpal Tunne|UNUSUAL NON-OVERLAPPING SERVICE|RIGHT SIDE; Neuroplasty &/Transpos Median Nrv Carpal Tunne|UNUSUAL NON-OVERLAPPING SERVICE|LEFT SIDE; Neuroplasty &/Transpos Median Nrv Carpal Tunne|LEFT SIDE|UNUSUAL NON-OVERLAPPING SERVICE; Neuroplasty &/Transpos Median Nrv Carpal Tunne|SEPARATE STRUCTURE|RIGHT SIDE (and 5 more line items)

Cataract Surgery (with Lens Implant) in St. Louis

Typical negotiated price $2,644 ·usual $2,294–$2,939 ·full spread $1,944–$3,234 ·3 hospitals ·self-pay cash $5,615 ·list $8,639

Billed as CPT 66984 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same Cataract Surgery costs 66% more across St. Louis-area hospitals: MERCY HOSPITAL SOUTH reports $1,944, MERCY HOSPITAL ST LOUIS reports $3,234 — a modest gap for identical billing codes.

Every St. Louis-area hospital price for a Cataract Surgery (3)
Every St. Louis-area hospital reporting a Cataract Surgery in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $2,644 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL SOUTH $1,944 26% below median $6,761 $10,402 Jun 2026
MERCY HOSPITAL WASHINGTON $2,644 at the median $5,615 $8,639 Jun 2026
MERCY HOSPITAL ST LOUIS $3,234 22% above median $5,238 $8,058 Jun 2026
How these 3 hospitals label a Cataract Surgery in their own files
MERCY HOSPITAL SOUTH
Xcapsl Ctrc Rmvl Insj Io Lens Prosth W/O Ecp
MERCY HOSPITAL WASHINGTON
Xcapsl Ctrc Rmvl Insj Io Lens Prosth W/O Ecp
MERCY HOSPITAL ST LOUIS
Xcapsl Ctrc Rmvl Insj Io Lens Prosth W/O Ecp

Hip or Knee Replacement in St. Louis

Typical negotiated price $3,667 ·usual $3,478–$22,001 ·full spread $3,478–$22,769 ·7 hospitals ·self-pay cash $38,991 ·list $59,986

Billed as MS-DRG 469 / 470 · inpatient (a hospital stay) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same Hip/Knee Replacement costs 6.5× as much across St. Louis-area hospitals: MERCY HOSPITAL ST LOUIS reports $3,478, CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST reports $22,769 — an unusually wide gap for identical billing codes.

The middle half fall between $3,478 and $22,001 — the upper end is 6.3× the lower, so the median hides a lot.

Every St. Louis-area hospital price for a Hip/Knee Replacement (7)
Every St. Louis-area hospital reporting a Hip/Knee Replacement in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $3,667 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL ST LOUIS $3,478 5% below median $28,575 $43,961 Jun 2026
MERCY HOSPITAL JEFFERSON $3,478 5% below median $33,870 $52,108 Jun 2026
MERCY HOSPITAL WASHINGTON $3,478 5% below median $38,991 $59,986 Jun 2026
MERCY HOSPITAL SOUTH $3,667 at the median $35,406 $54,470 Jun 2026
MISSOURI BAPTIST MEDICAL CENTER $21,706 492% above median $40,836 $68,060 Dec 2025
ALTON MEMORIAL HOSPITAL $22,296 508% above median $45,021 $75,035 Dec 2025
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST $22,769 521% above median $62,427 $104,045 Dec 2025

Inguinal Hernia Repair in St. Louis

Typical negotiated price $6,064 ·usual $5,245–$7,630 ·full spread $4,969–$7,630 ·7 hospitals ·self-pay cash $10,765 ·list $17,389

Billed as CPT 49505 / 49650 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same Hernia Repair costs 54% more across St. Louis-area hospitals: MERCY HOSPITAL JEFFERSON reports $4,969, ALTON MEMORIAL HOSPITAL reports $7,630 — a modest gap for identical billing codes.

The middle half fall between $5,245 and $7,630 — the upper end is 1.5× the lower, so the median hides a lot.

Every St. Louis-area hospital price for a Hernia Repair (7)
Every St. Louis-area hospital reporting a Hernia Repair in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $6,064 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL JEFFERSON $4,969 18% below median $11,303 $17,389 Jun 2026
MERCY HOSPITAL SOUTH $5,087 16% below median $8,473 $13,036 Jun 2026
MERCY HOSPITAL WASHINGTON $5,403 11% below median $7,748 $11,921 Jun 2026
MERCY HOSPITAL ST LOUIS $6,064 at the median $10,336 $15,901 Jun 2026
MISSOURI BAPTIST MEDICAL CENTER $7,630 26% above median $10,765 $17,942 Dec 2025
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST $7,630 26% above median $19,325 $32,209 Dec 2025
ALTON MEMORIAL HOSPITAL $7,630 26% above median $12,208 $20,346 Dec 2025
How these 7 hospitals label a Hernia Repair in their own files
MERCY HOSPITAL JEFFERSON
Bil Lap Ing Hernia Repair Init Pf; Rx Ing Hernia,5+Y/O,Reducibl Pf
MERCY HOSPITAL SOUTH
Bil Lap Ing Hernia Repair Init Pf; Rx Ing Hernia,5+Y/O,Reducibl Pf
MERCY HOSPITAL WASHINGTON
Bil Lap Ing Hernia Repair Init Pf; Rx Ing Hernia,5+Y/O,Reducibl Pf
MERCY HOSPITAL ST LOUIS
Bil Lap Ing Hernia Repair Init Pf; Rx Ing Hernia,5+Y/O,Reducibl Pf
MISSOURI BAPTIST MEDICAL CENTER
Rpr 1st Ingun Hrna Age 5 Yrs/> Reducible|SEPARATE PRACTITIONER|LEFT SIDE; Rpr 1st Ingun Hrna Age 5 Yrs/> Reducible|BILATERAL PROCEDURE; Rpr 1st Ingun Hrna Age 5 Yrs/> Reducible|RIGHT SIDE; Rpr 1st Ingun Hrna Age 5 Yrs/> Reducible|LEFT SIDE (and 1 more line item)
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST
Rpr 1st Ingun Hrna Age 5 Yrs/> Reducible|BILATERAL PROCEDURE; Rpr 1st Ingun Hrna Age 5 Yrs/> Reducible|RIGHT SIDE; Rpr 1st Ingun Hrna Age 5 Yrs/> Reducible|LEFT SIDE
ALTON MEMORIAL HOSPITAL
Rpr 1st Ingun Hrna Age 5 Yrs/> Reducible

Laparoscopic Appendectomy (Appendix Removal) in St. Louis

Typical negotiated price $6,182 ·usual $5,788–$6,649 ·full spread $5,697–$6,957 ·4 hospitals ·self-pay cash $11,810 ·list $18,170

Billed as CPT 44970 · outpatient or inpatient · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same Appendectomy costs 22% more across St. Louis-area hospitals: MERCY HOSPITAL JEFFERSON reports $5,697, MERCY HOSPITAL SOUTH reports $6,957 — a modest gap for identical billing codes.

The middle half of hospitals fall between $5,788 and $6,649, a narrow band around the median.

Every St. Louis-area hospital price for an Appendectomy (4)
Every St. Louis-area hospital reporting an Appendectomy in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $6,182 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL JEFFERSON $5,697 8% below median $14,602 $22,465 Jun 2026
MERCY HOSPITAL WASHINGTON $5,819 6% below median $9,527 $14,656 Jun 2026
MERCY HOSPITAL ST LOUIS $6,546 6% above median $12,092 $18,603 Jun 2026
MERCY HOSPITAL SOUTH $6,957 13% above median $11,529 $17,737 Jun 2026
How these 4 hospitals label an Appendectomy in their own files
MERCY HOSPITAL JEFFERSON
Laparos, Surgic,Appendectomy Pf
MERCY HOSPITAL WASHINGTON
Laparos, Surgic,Appendectomy Pf
MERCY HOSPITAL ST LOUIS
Laparos, Surgic,Appendectomy Pf
MERCY HOSPITAL SOUTH
Laparos, Surgic,Appendectomy Pf

Laparoscopic Gallbladder Removal in St. Louis

Typical negotiated price $6,243 ·usual $5,940–$6,991 ·full spread $5,940–$8,328 ·4 hospitals ·self-pay cash $10,309 ·list $15,861

Billed as CPT 47562 · outpatient or inpatient · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same Gallbladder Removal costs 40% more across St. Louis-area hospitals: MERCY HOSPITAL ST LOUIS reports $5,940, MERCY HOSPITAL SOUTH reports $8,328 — a modest gap for identical billing codes.

The middle half of hospitals fall between $5,940 and $6,991, a narrow band around the median.

Every St. Louis-area hospital price for a Gallbladder Removal (4)
Every St. Louis-area hospital reporting a Gallbladder Removal in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $6,243 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL ST LOUIS $5,940 5% below median $10,189 $15,675 Jun 2026
MERCY HOSPITAL WASHINGTON $5,940 5% below median $9,302 $14,310 Jun 2026
MERCY HOSPITAL JEFFERSON $6,546 5% above median $11,299 $17,383 Jun 2026
MERCY HOSPITAL SOUTH $8,328 33% above median $10,430 $16,046 Jun 2026
How these 4 hospitals label a Gallbladder Removal in their own files
MERCY HOSPITAL ST LOUIS
Lap,Cholecystectomy Pf
MERCY HOSPITAL WASHINGTON
Lap,Cholecystectomy Pf
MERCY HOSPITAL JEFFERSON
Lap,Cholecystectomy Pf
MERCY HOSPITAL SOUTH
Lap,Cholecystectomy Pf

Tonsillectomy in St. Louis

Typical negotiated price $4,452 ·usual $3,258–$5,688 ·full spread $3,258–$5,814 ·4 hospitals ·self-pay cash $5,985 ·list $9,207

Billed as CPT 42820 / 42821 / 42825 / 42826 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same Tonsillectomy costs 78% more across St. Louis-area hospitals: MERCY HOSPITAL JEFFERSON reports $3,258, MERCY HOSPITAL ST LOUIS reports $5,814 — a wide gap for identical billing codes.

The middle half fall between $3,258 and $5,688 — the upper end is 1.7× the lower, so the median hides a lot.

Every St. Louis-area hospital price for a Tonsillectomy (4)
Every St. Louis-area hospital reporting a Tonsillectomy in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $4,452 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL JEFFERSON $3,258 27% below median $7,189 $11,059 Jun 2026
MERCY HOSPITAL WASHINGTON $3,258 27% below median $5,854 $9,007 Jun 2026
MERCY HOSPITAL SOUTH $5,645 27% above median $4,745 $7,300 Jun 2026
MERCY HOSPITAL ST LOUIS $5,814 31% above median $6,115 $9,408 Jun 2026
How these 4 hospitals label a Tonsillectomy in their own files
MERCY HOSPITAL JEFFERSON
Tonsillectomy Primary/Secondary Age 12/>; Tonsillectomy & Adenoidectomy Age 12/>
MERCY HOSPITAL WASHINGTON
Tonsillectomy Primary/Secondary Age 12/>; Tonsillectomy Primary/Secondary <Age 12; Tonsillectomy & Adenoidectomy Age 12/>; Tonsillectomy & Adenoidectomy <Age 12
MERCY HOSPITAL SOUTH
Tonsillectomy Primary/Secondary Age 12/>; Tonsillectomy & Adenoidectomy Age 12/>; Tonsillectomy & Adenoidectomy <Age 12
MERCY HOSPITAL ST LOUIS
Tonsillectomy Primary/Secondary Age 12/>; Tonsillectomy Primary/Secondary <Age 12; Tonsillectomy & Adenoidectomy Age 12/>; Tonsillectomy & Adenoidectomy <Age 12

Maternity & delivery in St. Louis

Procedure Typical negotiated Range Cash List price
Cesarean Section (C-Section) Delivery $686 $686–$9,495 $11,627 $17,887
Vaginal Delivery $686 $686–$6,626 $7,612 $12,683

Cesarean Section (C-Section) Delivery in St. Louis

Typical negotiated price $686 ·usual $686–$8,005 ·full spread $686–$9,495 ·5 hospitals ·self-pay cash $11,627 ·list $17,887

Billed as MS-DRG 786 / 787 / 788 · inpatient (a hospital stay) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same C-Section costs 13.8× as much across St. Louis-area hospitals: MERCY HOSPITAL SOUTH reports $686, ALTON MEMORIAL HOSPITAL reports $9,495 — an unusually wide gap for identical billing codes.

The middle half fall between $686 and $8,005 — the upper end is 11.7× the lower, so the median hides a lot.

Every St. Louis-area hospital price for a C-Section (5)
Every St. Louis-area hospital reporting a C-Section in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $686 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL SOUTH $686 at the median $11,828 $18,197 Jun 2026
MERCY HOSPITAL JEFFERSON $686 at the median $11,627 $17,887 Jun 2026
MERCY HOSPITAL WASHINGTON $686 at the median $10,552 $16,234 Jun 2026
MISSOURI BAPTIST MEDICAL CENTER $8,005 1067% above median $12,080 $20,133 Dec 2025
ALTON MEMORIAL HOSPITAL $9,495 1285% above median $9,345 $15,575 Dec 2025
How these 5 hospitals label a C-Section in their own files
MERCY HOSPITAL SOUTH
CESAREAN SECTION WITHOUT STERILIZATION WITHOUT CC/MCC; CESAREAN SECTION WITHOUT STERILIZATION WITH MCC; CESAREAN SECTION WITHOUT STERILIZATION WITH CC
MERCY HOSPITAL JEFFERSON
CESAREAN SECTION WITHOUT STERILIZATION WITHOUT CC/MCC; CESAREAN SECTION WITHOUT STERILIZATION WITH MCC; CESAREAN SECTION WITHOUT STERILIZATION WITH CC
MERCY HOSPITAL WASHINGTON
CESAREAN SECTION WITHOUT STERILIZATION WITHOUT CC/MCC; CESAREAN SECTION WITHOUT STERILIZATION WITH MCC; CESAREAN SECTION WITHOUT STERILIZATION WITH CC
MISSOURI BAPTIST MEDICAL CENTER
CESAREAN SECTION WITHOUT STERILIZATION WITHOUT CC/MCC; CESAREAN SECTION WITHOUT STERILIZATION WITH MCC; CESAREAN SECTION WITHOUT STERILIZATION WITH CC
ALTON MEMORIAL HOSPITAL
CESAREAN SECTION WITHOUT STERILIZATION WITHOUT CC/MCC; CESAREAN SECTION WITHOUT STERILIZATION WITH MCC; CESAREAN SECTION WITHOUT STERILIZATION WITH CC

Vaginal Delivery in St. Louis

Typical negotiated price $686 ·usual $686–$5,405 ·full spread $686–$6,626 ·5 hospitals ·self-pay cash $7,612 ·list $12,683

Billed as MS-DRG 805 / 806 / 807 · inpatient (a hospital stay) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same Vaginal Delivery costs 9.7× as much across St. Louis-area hospitals: MERCY HOSPITAL SOUTH reports $686, ALTON MEMORIAL HOSPITAL reports $6,626 — an unusually wide gap for identical billing codes.

The middle half fall between $686 and $5,405 — the upper end is 7.9× the lower, so the median hides a lot.

Every St. Louis-area hospital price for a Vaginal Delivery (5)
Every St. Louis-area hospital reporting a Vaginal Delivery in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $686 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL SOUTH $686 at the median $9,378 $14,428 Jun 2026
MERCY HOSPITAL JEFFERSON $686 at the median $7,457 $11,472 Jun 2026
MERCY HOSPITAL WASHINGTON $686 at the median $7,999 $12,307 Jun 2026
MISSOURI BAPTIST MEDICAL CENTER $5,405 688% above median $7,610 $12,683 Dec 2025
ALTON MEMORIAL HOSPITAL $6,626 866% above median $7,612 $12,686 Dec 2025
How these 5 hospitals label a Vaginal Delivery in their own files
MERCY HOSPITAL SOUTH
VAGINAL DELIVERY WITHOUT STERILIZATION OR D&C WITHOUT CC/MCC; VAGINAL DELIVERY WITHOUT STERILIZATION OR D&C WITH MCC; VAGINAL DELIVERY WITHOUT STERILIZATION OR D&C WITH CC
MERCY HOSPITAL JEFFERSON
VAGINAL DELIVERY WITHOUT STERILIZATION OR D&C WITHOUT CC/MCC; VAGINAL DELIVERY WITHOUT STERILIZATION OR D&C WITH MCC; VAGINAL DELIVERY WITHOUT STERILIZATION OR D&C WITH CC
MERCY HOSPITAL WASHINGTON
VAGINAL DELIVERY WITHOUT STERILIZATION OR D&C WITHOUT CC/MCC; VAGINAL DELIVERY WITHOUT STERILIZATION OR D&C WITH MCC; VAGINAL DELIVERY WITHOUT STERILIZATION OR D&C WITH CC
MISSOURI BAPTIST MEDICAL CENTER
VAGINAL DELIVERY WITHOUT STERILIZATION OR D&C WITHOUT CC/MCC; VAGINAL DELIVERY WITHOUT STERILIZATION OR D&C WITH MCC; VAGINAL DELIVERY WITHOUT STERILIZATION OR D&C WITH CC
ALTON MEMORIAL HOSPITAL
VAGINAL DELIVERY WITHOUT STERILIZATION OR D&C WITHOUT CC/MCC; VAGINAL DELIVERY WITHOUT STERILIZATION OR D&C WITH MCC; VAGINAL DELIVERY WITHOUT STERILIZATION OR D&C WITH CC

Other procedures in St. Louis

Procedure Typical negotiated Range Cash List price
Emergency Room Visit (Level 3-4) $599 $410–$1,999 $1,316 $2,025
Physical Therapy Evaluation $153 $128–$169 $257 $396
Sleep Study (Polysomnography) $1,708 $1,106–$2,343 $4,054 $6,757

Emergency Room Visit (Level 3-4) in St. Louis

Typical negotiated price $599 ·usual $438–$1,993 ·full spread $410–$1,999 ·7 hospitals ·self-pay cash $1,316 ·list $2,025

Billed as CPT 99283 / 99284 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same ER Visit costs 4.9× as much across St. Louis-area hospitals: MERCY HOSPITAL WASHINGTON reports $410, ALTON MEMORIAL HOSPITAL reports $1,999 — an unusually wide gap for identical billing codes.

The middle half fall between $438 and $1,993 — the upper end is 4.5× the lower, so the median hides a lot.

Every St. Louis-area hospital price for an ER Visit (7)
Every St. Louis-area hospital reporting an ER Visit in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $599 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL WASHINGTON $410 32% below median $921 $1,417 Jun 2026
MERCY HOSPITAL ST LOUIS $425 29% below median $754 $1,161 Jun 2026
MERCY HOSPITAL JEFFERSON $452 25% below median $1,316 $2,025 Jun 2026
MERCY HOSPITAL SOUTH $599 at the median $1,109 $1,707 Jun 2026
MISSOURI BAPTIST MEDICAL CENTER $1,993 233% above median $1,932 $3,220 Dec 2025
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST $1,993 233% above median $1,932 $3,220 Dec 2025
ALTON MEMORIAL HOSPITAL $1,999 234% above median $1,932 $3,220 Dec 2025
How these 7 hospitals label an ER Visit in their own files
MERCY HOSPITAL WASHINGTON
Uc ED Phys Care Level 4 Mlp; Uc ED Phys Care Level 4 Pf; ED Phys Care Level 4 Mlp; ED Phys Care Level 3 Mlp (and 4 more line items)
MERCY HOSPITAL ST LOUIS
ED Phys Care Level 3 Mlp; ED Phys Care Level 4 Mlp; ED Phys Care Level 4 Pf; ED Phys Care Level 3 Pf (and 2 more line items)
MERCY HOSPITAL JEFFERSON
ED Visit Care Level 3; ED Visit Care Level 4
MERCY HOSPITAL SOUTH
ED Visit Care Level 3; ED Visit Care Level 4
MISSOURI BAPTIST MEDICAL CENTER
HC ED Level 4 Intermed (Peds); HC ED Level 3 Limited (Peds); HC ED Level 4 Intermed; HC ED Level 3 Limited
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST
HC ED Level 4 Intermed; HC ED Level 3 Limited
ALTON MEMORIAL HOSPITAL
HC ED Level 4 Intermed; HC ED Level 3 Limited

Physical Therapy Evaluation in St. Louis

Typical negotiated price $153 ·usual $147–$163 ·full spread $128–$169 ·7 hospitals ·self-pay cash $257 ·list $396

Billed as CPT 97161 / 97162 / 97163 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same PT Evaluation costs 32% more across St. Louis-area hospitals: MERCY HOSPITAL WASHINGTON reports $128, MISSOURI BAPTIST MEDICAL CENTER reports $169 — a modest gap for identical billing codes.

The middle half of hospitals fall between $147 and $163, a narrow band around the median.

Every St. Louis-area hospital price for a PT Evaluation (7)
Every St. Louis-area hospital reporting a PT Evaluation in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $153 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL WASHINGTON $128 16% below median $264 $406 Jun 2026
MERCY HOSPITAL ST LOUIS $145 5% below median $358 $551 Jun 2026
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST $149 3% below median $163 $271 Dec 2025
ALTON MEMORIAL HOSPITAL $153 at the median $163 $271 Dec 2025
MERCY HOSPITAL JEFFERSON $158 3% above median $293 $451 Jun 2026
MERCY HOSPITAL SOUTH $168 10% above median $257 $396 Jun 2026
MISSOURI BAPTIST MEDICAL CENTER $169 10% above median $163 $271 Dec 2025
How these 7 hospitals label a PT Evaluation in their own files
MERCY HOSPITAL WASHINGTON
Pt Eval Level III 105 Min; Pt Eval Level III 150 Min; Pt Eval Level III 135 Min; Pt Eval Level III 120 Min (and 26 more line items)
MERCY HOSPITAL ST LOUIS
Pt Eval Level III 105 Min; Pt Eval Level III 120 Min; Pt Eval Level III 135 Min; Pt Eval Level III 150 Min (and 26 more line items)
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST
HC Pt Eval Low Complexity|OP PT SERVICES|DOCUMENTATION ON FILE|UNUSUAL NON-OVERLAPPING SERVICE; HC Pt Eval Low Complexity|OP PT SERVICES|OP PT BY PT ASSISTANT; HC Pt Eval Low Complexity|OP PT SERVICES|SEPARATE PRACTITIONER; HC Pt Eval Mod Complexity|OP PT SERVICES|OP PT BY PT ASSISTANT (and 4 more line items)
ALTON MEMORIAL HOSPITAL
HC Pt Eval Low Complexity|OP PT SERVICES|OP PT BY PT ASSISTANT; HC Pt Eval Mod Complexity|OP PT SERVICES|OP PT BY PT ASSISTANT; HC Pt Eval Low Complexity|OP PT SERVICES; HC Pt Eval High Complexity (and 2 more line items)
MERCY HOSPITAL JEFFERSON
Pt Eval Level III 105 Min; Pt Eval Level III 120 Min; Pt Eval Level III 135 Min; Pt Eval Level III 150 Min (and 26 more line items)
MERCY HOSPITAL SOUTH
Pt Eval Level III 150 Min; Pt Eval Level III 105 Min; Pt Eval Level III 120 Min; Pt Eval Level III 135 Min (and 26 more line items)
MISSOURI BAPTIST MEDICAL CENTER
HC Pt Eval High Complexity|OP PT SERVICES|DOCUMENTATION ON FILE; HC Pt Eval Mod Complexity|OP PT SERVICES|OP PT BY PT ASSISTANT; HC Pt Eval Low Complexity|OP PT SERVICES|OP PT BY PT ASSISTANT; HC Pt Eval High Complexity|OP PT SERVICES (and 4 more line items)

Sleep Study (Polysomnography) in St. Louis

Typical negotiated price $1,708 ·usual $1,330–$2,147 ·full spread $1,106–$2,343 ·7 hospitals ·self-pay cash $4,054 ·list $6,757

Billed as CPT 95810 · outpatient (same-day) · what this price covers, and this procedure in every metro →

Cheapest to dearest, the same Sleep Study costs 2.1× as much across St. Louis-area hospitals: MERCY HOSPITAL JEFFERSON reports $1,106, ALTON MEMORIAL HOSPITAL reports $2,343 — a wide gap for identical billing codes.

The middle half fall between $1,330 and $2,147 — the upper end is 1.6× the lower, so the median hides a lot.

Every St. Louis-area hospital price for a Sleep Study (7)
Every St. Louis-area hospital reporting a Sleep Study in its price-transparency file, sorted by negotiated price. "vs median" compares each hospital's negotiated rate to the $1,708 median on this page. "File date" is when that hospital last published. A dash means the hospital did not report that price — it is never filled with a guess.
Hospital Negotiated vs median Cash List price File date
MERCY HOSPITAL JEFFERSON $1,106 35% below median $3,552 $5,465 Jun 2026
MERCY HOSPITAL ST LOUIS $1,240 27% below median $3,573 $5,497 Jun 2026
MERCY HOSPITAL SOUTH $1,419 17% below median $4,202 $6,464 Jun 2026
MERCY HOSPITAL WASHINGTON $1,708 at the median $4,602 $7,080 Jun 2026
MISSOURI BAPTIST MEDICAL CENTER $2,084 22% above median $4,054 $6,757 Dec 2025
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST $2,211 29% above median $4,054 $6,757 Dec 2025
ALTON MEMORIAL HOSPITAL $2,343 37% above median $4,054 $6,757 Dec 2025
How these 7 hospitals label a Sleep Study in their own files
MERCY HOSPITAL JEFFERSON
Polysom Attended >3 Chn 6/> Yrs <6 Hrs; Polysom Attended >3 Chn 6/> Yrs
MERCY HOSPITAL ST LOUIS
Polysom Attended >3 Chn 6/> Yrs <6 Hrs; Polysom Attended >3 Chn 6/> Yrs
MERCY HOSPITAL SOUTH
Polysom Attended >3 Chn 6/> Yrs
MERCY HOSPITAL WASHINGTON
Polysom Attended >3 Chn 6/> Yrs
MISSOURI BAPTIST MEDICAL CENTER
HC Polysomnography 4+ Para (<6hr)|REDUCED SERVICES; HC Poly >6yr W 4+ Para|REDUCED SERVICES; HC Polysomnography 4+ Para (<6hr); HC Poly >6yr W 4+ Para
CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST
HC Polysomnography 4+ Para (<6hr)|REDUCED SERVICES; HC Poly >6yr W 4+ Para|REDUCED SERVICES; HC Polysomnography 4+ Para (<6hr); HC Poly >6yr W 4+ Para
ALTON MEMORIAL HOSPITAL
HC Polysomnography 4+ Para (<6hr)|REDUCED SERVICES; HC Poly >6yr W 4+ Para|REDUCED SERVICES; HC Polysomnography 4+ Para (<6hr); HC Poly >6yr W 4+ Para

The 7 St. Louis-area hospitals behind these prices

Every price on this page comes from one of these hospitals' own machine-readable Standard Charges files. They sit in 5 different towns (Alton, Festus, Saint Louis, Town And Country, Washington) across 3counties (Franklin, Madison, St. Louis). A hospital's ownership, size and the completeness of its file all shape what you see above.

  1. MERCY HOSPITAL ST LOUIS

    615 New Ballas Road, Saint Louis, MO (St. Louis County)

    It is a large 859-bed private non-profit acute-care hospital with an emergency department. CMS rates it 4 stars out of 5 overall.

    It publishes a negotiated rate for 31 of the 33 procedures tracked here, a self-pay cash price on 31 and a chargemaster list price on 31. Its file was last published June 2026 as zipped CSV (CMS schema v3).

    Published at mercy.net

  2. MERCY HOSPITAL SOUTH

    10010 Kennerly Road, Saint Louis, MO (St. Louis County)

    It is a large 767-bed private non-profit acute-care hospital with an emergency department. CMS rates it 2 stars out of 5 overall.

    It publishes a negotiated rate for 33 of the 33 procedures tracked here, a self-pay cash price on 33 and a chargemaster list price on 33. Its file was last published June 2026 as zipped CSV (CMS schema v3).

    Published at mercy.net

  3. MISSOURI BAPTIST MEDICAL CENTER

    3015 N Ballas Rd, Town And Country, MO (St. Louis County)

    It is a large 494-bed private non-profit acute-care hospital with an emergency department. CMS rates it 5 stars out of 5 overall.

    It publishes a negotiated rate for 29 of the 33 procedures tracked here, a self-pay cash price on 29 and a chargemaster list price on 29. Its file was last published December 2025 as JSON (CMS schema v3), and lists up to 146 payer-specific rates on a single tracked line item.

    Published at bjc.org

  4. CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST

    11133 Dunn Road, Saint Louis, MO (St. Louis County)

    It is a large 475-bed private non-profit acute-care hospital with an emergency department. CMS rates it 4 stars out of 5 overall.

    It publishes a negotiated rate for 27 of the 33 procedures tracked here, a self-pay cash price on 27 and a chargemaster list price on 27. Its file was last published December 2025 as JSON (CMS schema v3), and lists up to 75 payer-specific rates on a single tracked line item.

    Published at bjc.org

  5. MERCY HOSPITAL JEFFERSON

    1400 Us Highway 61, Festus, MO

    It is a mid-sized 240-bed hospital.

    It publishes a negotiated rate for 32 of the 33 procedures tracked here, a self-pay cash price on 32 and a chargemaster list price on 32. Its file was last published June 2026 as zipped CSV (CMS schema v3).

    Published at mercy.net

  6. ALTON MEMORIAL HOSPITAL

    One Memorial Drive, Alton, IL (Madison County)

    It is a mid-sized 222-bed private non-profit acute-care hospital with an emergency department. CMS rates it 4 stars out of 5 overall.

    It publishes a negotiated rate for 29 of the 33 procedures tracked here, a self-pay cash price on 29 and a chargemaster list price on 29. Its file was last published December 2025 as JSON (CMS schema v3), and lists up to 73 payer-specific rates on a single tracked line item.

    Published at bjc.org

  7. MERCY HOSPITAL WASHINGTON

    901 East 5th Street, Washington, MO (Franklin County)

    It is a mid-sized 185-bed private non-profit acute-care hospital with an emergency department. CMS rates it 4 stars out of 5 overall.

    It publishes a negotiated rate for 33 of the 33 procedures tracked here, a self-pay cash price on 33 and a chargemaster list price on 33. Its file was last published June 2026 as zipped CSV (CMS schema v3).

    Published at mercy.net

Source: hospitals' own machine-readable Standard Charges files, published under the U.S. Hospital Price Transparency rule (45 CFR §180.50). Most recent hospital file in this dataset: July 2026. Prices are references, not quotes or bills, and never medical or financial advice — where a hospital reports no price, nothing is shown rather than a guess.

Frequently asked questions

Which St. Louis hospitals publish their prices?
7 St. Louis-area hospitals publish a usable Standard Charges file covering the procedures tracked here: MERCY HOSPITAL ST LOUIS, MERCY HOSPITAL SOUTH, MISSOURI BAPTIST MEDICAL CENTER, CHRISTIAN HOSPITAL NORTHEAST-NORTHWEST, MERCY HOSPITAL JEFFERSON, ALTON MEMORIAL HOSPITAL and 1 others. Each hospital's own file date, bed count and what it does and does not report are listed on this page.
What is the cheapest and most expensive procedure priced in St. Louis?
Of the 33 procedures tracked here, a CBC has the lowest typical negotiated price at $14 and a Heart Cath the highest at $7,329. Both figures are medians across the St. Louis-area hospitals that published a rate for them.
Can I pay cash for a procedure in St. Louis?
33 of the 33 procedures here have at least one St. Louis hospital publishing a self-pay cash price — the lowest is $18 for a CBC. Hospitals are not required to publish one, and most that do only publish cash prices for outpatient imaging and lab work.

Compare another metro

Other MO metros priced here:

All 44 metros and every procedure →