Gastric bypass (weight loss surgery), laparoscopic at Mercy Hospital St. Louis
CPT 43644 · Saint Louis, MO
These are Mercy Hospital St. Louis's own posted figures from its standard-charges file dated June 4, 2026. They are not a quote. Source: the hospital's file · its price transparency page.
Across 4 Missouri hospitals we index that post a cash price for this service: lowest $24,982.72, median $26,017.96, highest $33,595.60. See every hospital.
Nearby hospitals, same service
| Hospital | Distance | Cash price | Gross charge | File date |
|---|---|---|---|---|
| Mercy Hospital South Saint Louis, MO | 12.1 mi | $24,982.72 | $38,434.96 | 2026-06-10 |
| Mercy Hospital Jefferson Crystal City, MO | 29.8 mi | $33,595.60 | $51,685.54 | 2026-06-10 |
| Mercy Hospital Washington Washington, MO | 33.1 mi | $25,495.50 | $39,223.84 | 2026-06-10 |
| Northwestern Medicine Delnor Community Hospital Geneva, IL | 248.8 mi | $85,119.24 | $121,598.91 | 2026-04-01 |
| Northwestern Medicine Central Dupage Hospital Winfield, IL | 253.1 mi | $103,066.49 | $147,237.84 | 2026-04-01 |
| Holy Cross Hospital Chicago, IL | 259.5 mi | $4,095.80 | $5,851.14 | 2026-09-22 |
| Mt Sinai Hospital Medical Center Chicago, IL | 264.8 mi | $4,095.80 | $5,851.14 | 2026-09-22 |
| University of Illinois Hospital and Clinics Chicago, IL | 266.2 mi | $3,276.00 | $10,920.00 | 2026-04-01 |
Distances are straight-line from ZIP code centers. Each hospital's figures come from its own file; files are updated on different dates.
Every row for CPT 43644 in this hospital's file
| Row in the hospital's file | Setting | Cash | Gross | Insurer min – max |
|---|---|---|---|---|
| Laps Gstr Rstcv Px W/Byp Roux-en-Y Limb <150 Cm line 2129243 | outpatient | $26,540.42 | $40,831.42 | $3,897.00 – $32,851.00 |
| Laps Gstr Rstcv Px W/Byp Roux-en-Y Limb <150 Cm line 2208255 | outpatient | $26,540.42 | $40,831.42 | $217.33 – $19,595.00 |
| Laps Gstr Rstcv Px W/Byp Roux-en-Y Limb <150 Cm line 2221097 | outpatient | $26,540.42 | $40,831.42 |
The first row is the one used above. A price for one code usually covers the hospital's facility charge only; the doctor, anesthesia, pathology and other services can be billed separately. Ask the hospital for a good faith estimate before a scheduled service: if you pay yourself and the bill comes in $400 or more above the estimate, you can dispute it under the No Surprises Act.
Check a bill from this hospital All Mercy Hospital St. Louis prices