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 $249 to $1,112 for identical care. The median cash price across 16 reporting hospitals is $411. The numbers are pulled directly from federally mandated hospital price transparency files. The sections below break this down by coverage and by insurer.
Your colonoscopy prep plan is ready: the bills to expect and the questions to ask before you go. See your plan.
Where colonoscopy costs vary in Riverside, CA
Pins show hospitals with price-transparency data (colored by vs. state average) and nearby ambulatory surgery centers and other facilities (colored by type). Click any pin for facility name and estimated cost range.
26+ people checked prices near them this month.
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The first question to ask before you schedule: “Is this a screening or a diagnostic colonoscopy, and what changes if a polyp is removed?” Here’s your plan:
- ✓ The four bills a colonoscopy can produce (facility, doctor, anesthesia, pathology) and which can be out of network
- ✓ Five questions to ask before you schedule, with what to listen for
- ✓ What changes if a polyp is removed: a screening can be billed as diagnostic
- ✓ A reminder timed to your date, and a slot for each bill as it arrives
- ✓ A free check of your first bill
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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 | Corona Regional Medical Center | Corona, CA | $214 | -$197 |
| 2 | Hospital name hidden | Your City, CA | $610 | -$000 |
| 3 | Hospital name hidden | Your City, CA | $609 | -$000 |
| 4 | KAISER FOUNDATION HOSPITAL - ONTARIO | Ontario, CA | $249 | -$162 |
| 5 | Hemet Global Medical Center | Hemet, CA | $342 | -$69 |
| 6 | Hospital name hidden | Your City, CA | $606 | -$000 |
| 7 | Hospital name hidden | Your City, CA | $605 | -$000 |
| 8 | Hospital name hidden | Your City, CA | $604 | -$000 |
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Prices are declared self-pay rates. Contact each facility for a formal quote before scheduling.
Your colonoscopy prep plan and all 16 facilities are ready
Where should we send them? The plan covers the bills to expect and the questions that change what you pay. We don't sell your information (privacy policy).
Before you book: three questions that change the price
- Is this the self-pay price, and does it include the doctor, anesthesia and any lab or pathology? Those are often billed separately.
- Can you give me the price in writing, with the billing codes it covers?
- What happens to the price if something extra is needed during the procedure?
Estimate your out-of-pocket cost → · When the bills arrive, we check them for errors →
Quick take
- Corona Regional Medical Center is the lowest-cost option at $214 - $197 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 $411, 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.
| Coverage | Hospitals with a rate | Typical range | Median |
|---|---|---|---|
| Medicare (national rate) | — | $950 to $2,352 | $1,223 |
| With insurance (commercial, average) | 12 | $1,147 to $2,690 | $1,759 |
| Without insurance (cash price) | 16 | $208 to $3,592 | $411 |
| Anthem Blue Cross | 8 | $1,095 to $2,556 | $1,772 |
| Aetna | 4 | $659 to $2,285 | $1,193 |
| Cigna | 3 | $1,346 to $3,482 | $1,664 |
Rates are negotiated allowed amounts and cash prices from hospital price-transparency files (October 2026), shown at each hospital’s lowest-priced typical billing code for this procedure. Facility fees only. The typical range is the middle 80% of hospitals, not a quote for your visit.
How much does a colonoscopy cost with Medicare in Riverside, CA?
Medicare's national hospital outpatient payment for colonoscopy is about $950 to $2,352 (typically near $1,223). After the $257 Part B deductible, you generally pay 20% of the Medicare-approved amount, about $245 on a $1,223 payment, with no out-of-pocket cap unless you have supplemental coverage or a Medicare Advantage plan.
Doctor, anesthesia and pathology fees are billed separately. Medicare rates are national CMS amounts, adjusted slightly by local wage levels.
How much does a colonoscopy cost with insurance in Riverside, CA?
Across 12 Riverside, CA hospitals, the negotiated rates commercial insurers pay for colonoscopy average $1,147 to $2,690 per hospital, with a median near $1,759. That is the amount your plan and you pay the hospital together; you owe your deductible, then coinsurance, up to your out-of-pocket maximum.
Each hospital’s figure is the average of the commercial insurers it lists. Medicare, Medicare Advantage and Medicaid rates are excluded.
How much does a colonoscopy cost without insurance in Riverside, CA?
Cash (self-pay) prices for colonoscopy at 16 Riverside, CA hospitals range from $208 to $3,592, with a median of $411. Ask for the cash or self-pay price and for any financial-assistance discount before you book; both can be lower than the posted price.
Cash prices are the hospital’s published discounted rate for patients paying without insurance.
How much does a colonoscopy cost with Anthem Blue Cross in Riverside, CA?
Anthem Blue Cross negotiated rates for colonoscopy at 8 Riverside, CA hospitals range from $1,095 to $2,556, with a median near $1,772. Your own cost depends on your plan’s deductible and coinsurance, and on whether the hospital is in your network.
Includes Blue Cross and Blue Shield and Anthem plans listed by each hospital.
How much does a colonoscopy cost with Aetna in Riverside, CA?
Aetna negotiated rates for colonoscopy at 4 Riverside, CA hospitals range from $659 to $2,285, with a median near $1,193. If a hospital is out of network for your Aetna plan, you may owe more than the negotiated rate, so check the network first.
How much does a colonoscopy cost with Cigna in Riverside, CA?
Cigna negotiated rates for colonoscopy at 3 Riverside, CA hospitals range from $1,346 to $3,482, with a median near $1,664. If a hospital is out of network for your Cigna plan, you may owe more than the negotiated rate, so check the network first.
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
Setting matters too: the median outpatient price is $365 versus $1,817 inpatient (about 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 | ~$411 |
| Deductible met - 20% coinsurance | ~$82 |
| Out-of-network provider | $904+ |
Frequently asked questions: colonoscopy costs in Riverside, CA
How much does a colonoscopy cost in Riverside, CA?
The typical insurer-negotiated rate is $107, with most facilities between $78 and $876 (based on 14 hospitals reporting negotiated rates). Full market pricing - including cash rates, gross charges, and outlier facilities - ranges more widely, from $201 to $4,740 across all 16 Riverside, CA hospitals that publish prices. 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 DIGNITY HEALTH in San Bernardino at about $201. By metro, San Bernardino has the lowest median ($201). Freestanding ambulatory surgery 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 23.6× because each hospital sets its own list price, cash discount, and insurer-negotiated rates. In Riverside, CA, the median cash (self-pay) price is $411 versus a median negotiated rate of $1,759 - cash is the lower number at many hospitals. Asking for the cash price as well as 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 ambulatory surgery 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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