Colonoscopy Cost in Chicago, IL (2026): Average Prices & What You'll Pay
What does a colonoscopy cost in Chicago, IL?
Where you have a colonoscopy done in Chicago, IL swings the bill from $626 to $1,191 for identical care. The median cash price across 58 reporting hospitals is $909. The numbers are pulled directly from federally mandated hospital price transparency files.
Where colonoscopy costs vary in Chicago, IL
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 Chicago, IL
Based on declared cash/self-pay prices from CMS hospital price transparency files.
| # | Facility | City | Price | vs Median |
|---|---|---|---|---|
| 1 | Gottlieb Memorial Hospital | Melrose Park, IL | $367 | -$542 |
| 2 | Ressurection Medical Center | Chicago, IL | $382 | -$527 |
| 3 | Presence Chicago Hospitals Network | IL | $428 | -$481 |
| 4 | Loyola University Medical Center | Maywood, IL | $445 | -$464 |
| 5 | Thorek Memorial Hospital | Chicago, IL | $465 | -$444 |
| 6 | Thorek Memorial Hospital Andersonville | Chicago, IL | $465 | -$444 |
| 7 | Ingalls Memorial Hospital | Harvey, IL | $474 | -$435 |
| 8 | Loretto Hospital | IL | $502 | -$407 |
Prices are declared self-pay rates. Contact each facility for a formal quote before scheduling.
Quick take
- Gottlieb Memorial Hospital is the lowest-cost option at $367 - $542 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 $909, 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.
Illinois presents two distinct markets: Chicago (highly competitive, high commercial rates, major academic medical centers) and downstate (lower density, smaller regional systems, lower rates). Northwestern Medicine, Advocate Aurora Health, and Rush University Medical Center compete aggressively in the Chicago market. Downstate Illinois prices typically run 20–35% below Chicago-area rates for identical services. 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 (4) report prices above $2,480, including Kindred Hospital Chicago - North at $3,745, 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 $827 versus $827 inpatient, 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.
What you pay out of pocket on top of this depends on your deductible, your plan's out-of-pocket maximum, and whether every provider involved is in-network - not just the facility.
| Your situation | Estimated out-of-pocket |
|---|---|
| Deductible not yet met | ~$909 |
| Deductible met - 20% coinsurance | ~$182 |
| Out-of-network provider | $2,000+ |
Frequently asked questions: colonoscopy costs in Chicago, IL
How much does a colonoscopy cost in Chicago, IL?
Across 58 Chicago, IL hospitals that publish prices, a colonoscopy ranges from $211 to $3,745, with a median of $909. Most facilities fall between $548 and $1,191. 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 Chicago, IL?
Based on declared prices, the lowest-cost facility in our Chicago, IL data is MacNeal Hospital in Berwyn at about $211. By metro, Elgin has the lowest median ($774). 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 Chicago, IL hospitals?
Prices vary up to 17.7× because each hospital sets its own list price, cash discount, and insurer-negotiated rates. In Chicago, IL, the median cash (self-pay) price is $909 versus a median negotiated rate of $484 - about 1.9× 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 Chicago, IL?
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
- Allowed amount vs negotiated rate: what your EOB is really saying
- How to read your medical bill
- Deductible vs out-of-pocket max
- Already have a bill? Check it for errors
- Understanding your UnitedHealthcare EOB
Other procedures in Chicago, IL
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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