Colonoscopy, diagnostic in Riverside-San Bernardino-Ontario, CA — inpatient
In Riverside-San Bernardino-Ontario, CA, 7 hospitals list a cash price for Colonoscopy, diagnostic as an inpatient: from $1,299.84 to $5,349.82, with a median of $2,281.10. The lowest listed price is at St Mary Medical Center.
Cash prices at 7 facilities across 6 cities for code 45378, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Sep 2, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Riverside-San Bernardino-Ontario, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Off list | File date |
|---|---|---|---|---|
| St Mary Medical Center lowest Apple Valley, CA HC ED COLONOSCOPY FLX DX W/COLLJ SPEC WHEN PFRMD CDM | $1,299.84 | $2,708.00 | 52% | Apr 1, 2026 source file |
| Loma Linda University Medical Center - Murrieta Murrieta, CA HC COLONOSCOPY DX W WO COLLECT | $1,924.65 | $4,277.00 | 55% | Sep 2, 2026 source file |
| Kaiser Foundation Hospital - Fontana Fontana, CA COLONOSCOPY FLX DX W/COLLJ SPEC WHEN PFRMD | $2,080.00 | $4,000.00 | 48% | — source file |
| Kaiser Foundation Hospital - Riverside Riverside, CA COLONOSCOPY FLX DX W/COLLJ SPEC WHEN PFRMD | $2,080.00 | $4,000.00 | 48% | — source file |
| Loma Linda University Childrens Hospital Loma Linda, CA HC COLONOSCOPY DX W WO COLLECT | $2,482.20 | $5,516.00 | 55% | Sep 2, 2026 source file |
| Loma Linda University Medical Center Loma Linda, CA HC COLONOSCOPY DX W WO COLLECT | $2,750.40 | $6,112.00 | 55% | Sep 2, 2026 source file |
| Riverside University Medical Center Moreno Valley, CA HC Colonoscopy Dx W WO Collect | $5,349.82 | $5,349.82 | — | — source file |
| Riverside University Medical Center Moreno Valley, CA HC Colonoscopy Dx W WO Collect | $5,349.82 | $5,349.82 | — | — source file |
Inpatient: lowest $1,299.84, median $2,281.10, highest $5,349.82 — a 4.1× difference within the same market.
As an outpatient, the same code is billed by 10 facilities here, median $1,190.00 — that is the price to compare if you are not being admitted.
What it is
A colonoscopy uses a long, flexible camera to look at the inside of the entire colon (large intestine). The diagnostic version, with no tissue taken, is used to look into symptoms like bleeding or changes in bowel habits and is also used for screening.
What the price covers
The facility price covers the procedure room and recovery. The gastroenterologist's fee, anesthesia and the bowel-prep medicine are usually billed or bought separately.