Colonoscopy Cost in Riverside, CA (2026): Average Prices & What You'll Pay
What does a colonoscopy cost in Riverside, CA?
Where you have a colonoscopy done in Riverside, CA swings the bill from $215 to $572 for identical care. The median cash price across 12 reporting hospitals is $400. The numbers are pulled directly from federally mandated hospital price transparency files.
Where colonoscopy costs vary in Riverside, CA
Pins show hospitals with price-transparency data (colored by vs. state average) and nearby ambulatory surgery centers, imaging centers, and other facilities (colored by type). Click any pin for facility name and estimated cost range.
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Cheapest Colonoscopy Providers in Riverside, CA
Based on declared cash/self-pay prices from CMS hospital price transparency files.
| # | Facility | City | Price | vs Median |
|---|---|---|---|---|
| 1 | St. Bernardine Medical Center | San Bernardino, CA | $201 | -$199 |
| 2 | Community Hospital of San Bernardino | San Bernardino, CA | $201 | -$199 |
| 3 | Hi-Desert Medical Center | Joshua Tree, CA | $202 | -$198 |
| 4 | Corona Regional Medical Center | Corona, CA | $214 | -$186 |
| 5 | San Bernardino County | Colton, CA | $218 | -$182 |
| 6 | RIVERSIDE COMMUNITY HOSPITAL | Riverside, CA | $341 | -$59 |
| 7 | Montclair Hospital Medical Center | CA | $459 | +$59 |
| 8 | Chino Valley Medical Center | CA | $459 | +$59 |
Prices are declared self-pay rates. Contact each facility for a formal quote before scheduling.
Quick take
- St. Bernardine Medical Center is the lowest-cost option at $201 - $199 below the state median, just by choosing where you go.
- Ask for the cash price if your deductible isn't met - the median cash price here is $400, and it's often lower than what insurance pays before your deductible is satisfied.
- This dataset covers hospitals only - freestanding ASCs, which routinely run 30-60% cheaper for the same procedure, aren't included, so it's worth asking your doctor whether one is an option.
California has the most competitive commercial hospital market in the country, with aggressive multi-system competition in every major metro driving meaningful price variation. Kaiser Permanente's integrated payer-provider model covers roughly 40% of the insured population in the state - if you're Kaiser-enrolled, the prices here largely don't apply. California's robust price transparency enforcement under SB 1204 means the data here is more complete than in most states. Colonoscopy pricing is particularly sensitive to screening vs. diagnostic coding. A screening colonoscopy is typically covered at 100% under preventive care benefits, but if a polyp is removed or a finding is documented during the same visit, the claim is often re-coded as diagnostic - triggering your deductible and coinsurance. Ambulatory surgery centers perform over 70% of colonoscopies nationally and charge substantially less than hospital outpatient settings.
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Why prices vary - and what it means for your coverage
A small number of hospitals (1) report prices above $2,231, including Ballard Rehabilitation Hospital at $3,385, which drives most of the overall spread - excluding them, most facilities cluster in a much tighter band. Setting matters too: the median outpatient price is $341 versus $2,217 inpatient (about 6.5× more), so where a procedure happens often matters more than which hospital you pick. The biggest swing for this procedure is screening versus diagnostic coding - a polyp removed during a routine screening can recode the whole visit as diagnostic and trigger cost-sharing you weren't expecting.
None of the prices above are what you'll necessarily owe: your deductible, out-of-pocket maximum, and each provider's network status all still apply.
| Your situation | Estimated out-of-pocket |
|---|---|
| Deductible not yet met | ~$400 |
| Deductible met - 20% coinsurance | ~$80 |
| Out-of-network provider | $880+ |
Frequently asked questions: colonoscopy costs in Riverside, CA
How much does a colonoscopy cost in Riverside, CA?
Across 12 Riverside, CA hospitals that publish prices, a colonoscopy ranges from $201 to $3,385, with a median of $400. Most facilities fall between $211 and $572. What you pay depends on the facility, your insurance, and whether you have met your deductible.
Where is the cheapest place to get a colonoscopy in Riverside, CA?
Based on declared prices, the lowest-cost facility in our Riverside, CA data is St. Bernardine Medical Center in San Bernardino at about $201. By metro, San Bernardino has the lowest median ($201). Freestanding ambulatory surgery and imaging centers are often cheaper still and may not appear in hospital price data - ask your doctor whether one is an option.
Why is a colonoscopy so much cheaper at some Riverside, CA hospitals?
Prices vary up to 16.8× because each hospital sets its own list price, cash discount, and insurer-negotiated rates. In Riverside, CA, the median cash (self-pay) price is $400 versus a median negotiated rate of $107 - about 3.7× higher. Asking for the cash price or your insurer's negotiated rate is often the single biggest lever on what you pay.
How much will I actually pay out of pocket for a colonoscopy in Riverside, CA?
Your out-of-pocket cost depends on your deductible, coinsurance, out-of-pocket maximum, and whether the facility is in-network - not just the sticker price. If you have not met your deductible, you will typically pay the negotiated rate in full until you do. Use the CostKits cost forecaster to estimate your specific out-of-pocket amount before you go.
Before you book
- Deductible vs out-of-pocket max
- How to negotiate your medical bills
- EOB vs medical bill: complete guide
- Already have a bill? Check it for errors
- Understanding your UnitedHealthcare EOB
Other procedures in Riverside, CA
Colonoscopy, elsewhere
What matters before you schedule
ASC vs. hospital
Hospital outpatient departments typically charge 2-4x more than ASCs or independent centers for the same colonoscopy - same outcome, very different bill. Call ahead and ask for a self-pay or cash quote at each setting you're considering.
What's on your bill
A colonoscopy involves multiple providers who bill separately - typically Facility Fee, Gastroenterologist Fee, Anesthesia. Check each line item against your Explanation of Benefits to catch billing errors.
Cost by type
Which type your doctor orders for this colonoscopy changes the billing code, and what you pay. For example: Billed as preventive care - often covered at $0 under the ACA when you are average-risk and in-network.
What to ask before you book
Get the CPT code from your doctor, confirm every provider involved (not just the facility) is in-network, ask for the cash-pay rate if you're uninsured or haven't met your deductible, and request a written estimate for colonoscopy before you schedule.
CostKits compiles hospital price transparency data to help families make informed decisions. Track and manage your healthcare costs (free account).
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About the Author
John Caruso, FSA, MAAA
Healthcare actuary with 20+ years of experience in insurance pricing, medical billing systems, and healthcare cost analytics.
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