Gastric bypass surgery cost in Illinois
In Illinois, 7 hospitals publish a cash price for laparoscopic Roux-en-Y gastric bypass, standard limb length: from $1,381.10 to $103,066.49, with a median of $4,255.20. The lowest price is at Deaconess Illinois Crossroads (Mount Vernon) and 2 other hospitals. The highest price is 74.6× the lowest.
Outpatient cash prices, one line per hospital — its lowest listed price for code 43644. Prices for both sides of the body and inpatient prices are not mixed in. Collected Sep 23, 2026.
Hospitals in Illinois, cheapest first
| Hospital | Cash price | List price | File date |
|---|---|---|---|
| Deaconess Illinois Crossroads lowest Mount Vernon · Mount Vernon, IL PR LAPS GSTR RSTCV PX W/BYP ROUX-EN-Y LIMB <150 CM | $1,381.10 | $3,946.00 | Feb 3, 2026 source file |
| Deaconess Illinois Union County Hospital lowest Anna · Anna, IL PR LAPS GSTR RSTCV PX W/BYP ROUX-EN-Y LIMB <150 CM | $1,381.10 | $3,946.00 | Feb 3, 2026 source file |
| Heartland Regional Medical Center lowest Marion · Marion-Herrin, IL PR LAPS GSTR RSTCV PX W/BYP ROUX-EN-Y LIMB <150 CM | $1,381.10 | $3,946.00 | Feb 3, 2026 source file |
| Trinity Medical Center Rock Island · Davenport-Moline-Rock Island, IA-IL PR LAP GASTRIC BYPASS/ROUX-EN-Y | $4,255.20 | $5,319.00 | Jan 28, 2026 source file |
| Northwestern Medicine McHenry Hospital McHenry · Chicago-Naperville-Elgin, IL-IN Laps Gstr Rstcv Px W/Byp Roux-en-Y Limb <150 Cm | $48,023.54 | $68,605.06 | Apr 1, 2026 source file |
| Northwestern Medicine Delnor Hospital Geneva · Chicago-Naperville-Elgin, IL-IN Laps Gstr Rstcv Px W/Byp Roux-en-Y Limb <150 Cm | $85,119.24 | $121,598.91 | Apr 1, 2026 source file |
| Northwestern Medicine Central DuPage Hospital Winfield · Chicago-Naperville-Elgin, IL-IN Laps Gstr Rstcv Px W/Byp Roux-en-Y Limb <150 Cm | $103,066.49 | $147,237.84 | Apr 1, 2026 source file |
By metro area
Each metro page compares every listing, including prices for both sides of the body.
| Metro area | Hospitals | Lowest | Median |
|---|---|---|---|
| Chicago-Naperville-Elgin, IL-IN | 3 | $48,023.54 | $85,119.24 |
| Anna, IL | 1 | $1,381.10 | $1,381.10 |
| Davenport-Moline-Rock Island, IA-IL | 1 | $4,255.20 | $4,255.20 |
| Marion-Herrin, IL | 1 | $1,381.10 | $1,381.10 |
| Mount Vernon, IL | 1 | $1,381.10 | $1,381.10 |
What it is
A Roux-en-Y gastric bypass creates a small stomach pouch and connects it directly to the small intestine, so food bypasses most of the stomach. It is a weight-loss (bariatric) operation that also often improves type 2 diabetes and reflux.
What the price covers
The facility price usually covers the operating room and recovery and may not include the hospital stay. The surgeon, anesthesia, pre-surgery tests and follow-up visits are usually billed separately.
Laparoscopic Roux-en-Y gastric bypass, standard limb length in other states
- Alabama$31,183.33
- Arizona$1,725.10
- Arkansas$25,147.32
- California$4,686.25
- Colorado$17,169.05
- Connecticut$17,855.33
- Delaware$23,933.37
- Florida$30,771.11
- Idaho$28,360.31
- Indiana$1,100.00
- Iowa$4,255.20
- Maine$1,264.41
- Maryland$12,365.99
- Massachusetts$3,769.00
- Michigan$2,455.21
- Minnesota$4,120.08
- Mississippi$10,278.29
- Missouri$25,239.11
- Nebraska$3,009.50
- New Hampshire$5,784.32
- New Jersey$2,138.82
- New York$5,035.20
- Ohio$8,155.20
- Oklahoma$10,860.32
- Oregon$3,181.75
- Pennsylvania$1,269.32
- South Carolina$54,877.46
- South Dakota$15,230.65
- Tennessee$10,278.29
- Texas$3,894.00
- Vermont$4,708.78
- Virginia$47,690.63
- Washington$19,825.76
- West Virginia$33,206.25
- Wisconsin$7,401.46
- Wyoming$10,486.43
Median cash price across the state's hospitals.