Colonoscopy cost in Riverside, CA
In Riverside-San Bernardino-Ontario, CA, 18 hospitals list a cash price for colonoscopy, diagnostic: from $592.06 to $5,364.00, with a median of $2,080.00. The lowest listed price is at Eisenhower Medical Center — $1,487.94 less than the median here. Across California, the median is $2,080.00 at 103 hospitals.
- The median here, $2,080.00, is 15% above the US median of $1,809.61.
- That is 2.2× Medicare's 2026 national rate for the same service ($950.10).
- Riverside, CA ranks 2nd of 3 metro areas in California by median, cheapest first.
- 4 of 18 hospitals list a cash price equal to their full list price, with no self-pay discount.
Cash prices at 18 facilities across 16 cities for code 45378, as an outpatient — the setting a self-pay patient normally buys. Collected Nov 4, 2026; the hospital files themselves were last updated between Feb 25, 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 | Insurers pay | Off list |
|---|---|---|---|---|
| Eisenhower Medical Center lowest Rancho Mirage, CA · (760) 340-3911 HC Colonoscopy Diagnostic File of Apr 2, 2026 · source file | $592.06 | $3,282.00 | $423.48–$10,280.00 | 82% |
| San Gorgonio Memorial Hospital Banning, CA · (951) 769-2101 DIAGNOSTIC EXAM OF LARGE BOWEL USING A FLEXIBLE ENDOSCOPE File of May 20, 2026 · source file | $768.66 | $3,843.30 | $873.00–$3,570.66 | 80% |
| Desert Valley Hospital Victorville, CA · (760) 241-8000 COLONOSCOPY SCRN HIGH RISK P - 45378 - 476G0105+2 more lines at this price File of Sep 1, 2026 · source file | $1,190.00 | $3,763.80 | $423.48–$5,225.91 | 68% |
| Montclair Hospital Medical Center Montclair, CA · (909) 625-8300 Hc Colorectal Cancer Scrn, Colonoscopy Not High Risk - 45378 - 75000071+3 more lines at this price File of Sep 1, 2026 · source file | $1,190.00 | $6,501.30 | $423.48–$9,928.60 | 82% |
| Chino Valley Medical Center Chino, CA · (909) 627-6111 Hc Colorectal Cancer Scrn, Colonoscopy Not High Risk - 45378 - 75000071+2 more lines at this price File of Sep 1, 2026 · source file | $1,190.00 | $6,501.30 | $423.48–$6,501.30 | 82% |
| St Mary Medical Center Apple Valley, CA · (760) 242-2311 HC ED COLONOSCOPY FLX DX W/COLLJ SPEC WHEN PFRMD CDM File of Apr 1, 2026 · source file | $1,299.84 | $2,708.00 | — | 52% |
| Bear Valley Community Hospital Big Bear Lake, CA · (909) 866-6501 COLONOSCOPY FLEX DIAG SPECIMEN File of Jun 11, 2026 · source file | $1,658.65 | $2,369.50 | $321.58–$2,387.70 | 30% |
| Bear Valley Community Hospital Big Bear Lake, CA · (909) 866-6501 COLONOSCOPY File of Jun 11, 2026 · source file | $1,857.10 | $2,653.00 | $321.58–$2,387.70 | 30% |
| Loma Linda University Medical Center - Murrieta Murrieta, CA · (951) 290-4000 HC COLONOSCOPY DX W WO COLLECT File of Sep 2, 2026 · source file | $1,924.65 | $4,277.00 | $425.00–$9,616.00 | 55% |
| Kaiser Foundation Hospital - Fontana Fontana, CA · (909) 427-5000 COLONOSCOPY FLX DX W/COLLJ SPEC WHEN PFRMD File of Apr 1, 2026 · source file | $2,080.00 | $4,000.00 | $904.00–$2,690.00 | 48% |
| Kaiser Foundation Hospital - Moreno Valley Moreno Valley, CA · (951) 251-6530 COLONOSCOPY FLX DX W/COLLJ SPEC WHEN PFRMD File of Apr 1, 2026 · source file | $2,080.00 | $4,000.00 | $904.00–$2,690.00 | 48% |
| Kaiser Foundation Hospital - Riverside Riverside, CA · (951) 353-2000 COLONOSCOPY FLX DX W/COLLJ SPEC WHEN PFRMD File of Apr 1, 2026 · source file | $2,080.00 | $4,000.00 | $904.00–$2,690.00 | 48% |
| Kaiser Ontario Medical Center Campus Ontario, CA · (909) 427-5000 COLONOSCOPY FLX DX W/COLLJ SPEC WHEN PFRMD File of Apr 1, 2026 · source file | $2,080.00 | $4,000.00 | $904.00–$2,690.00 | 48% |
| Loma Linda University Childrens Hospital Loma Linda, CA · (909) 558-8000 HC COLONOSCOPY DX W WO COLLECT File of Sep 2, 2026 · source file | $2,482.20 | $5,516.00 | $495.99–$32,312.00 | 55% |
| Loma Linda University Medical Center Loma Linda, CA · (909) 558-4000 HC COLONOSCOPY DX W WO COLLECT File of Sep 2, 2026 · source file | $2,750.40 | $6,112.00 | $507.80–$27,467.00 | 55% |
| San Bernardino County Colton, CA · (909) 580-1000 HC COLONOSCOPY FLX DX W/COLLJ SPEC WHEN PFRMD - COLONOSCOPY File of Feb 25, 2026 · source file | $4,812.00 | $4,812.00 | $295.23–$3,488.70 | — |
| Riverside University Medical Center Moreno Valley, CA · (951) 486-4000 HC Colonoscopy Dx W WO Collect+1 more line at this price File of Mar 30, 2026 · source file | $5,349.82 | $5,349.82 | $295.23–$5,349.82 | — |
| Menifee Global Medical Center Menifee, CA · (951) 679-8888 COLONOSCOPY DIAG FLEXIBLE File of May 20, 2026 · source file | $5,364.00 | $5,364.00 | $348.37–$5,364.00 | — |
| Hemet Global Medical Center Hemet, CA · (951) 652-2811 COLONOSCOPY DIAG FLEXIBLE File of Jun 15, 2026 · source file | $5,364.00 | $5,364.00 | $348.37–$5,364.00 | — |
Outpatient: lowest $592.06, median $2,080.00, highest $5,364.00 — a 9.1× difference within the same market.
As an inpatient, the same code is billed by 13 facilities here, median $2,080.00. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
Cash or insurance?
At 13 of 17 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 1 it is below every plan's rate. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
What colonoscopy is, what the price covers and why prices differ: Colonoscopy explained.