Cost of a Colonoscopy Visit
in Illinois
Reviewed by Momentary Medical Group West PC
Illinois ranks among the top 10 states for colorectal cancer screening rates, with strong preventive care infrastructure centered around the Chicago metropolitan area. Colonoscopy procedures in Illinois typically range from $85 to $901, with a median cost of $344 based on negotiated insurance rates. The state's 4,773 active colonoscopy providers offer extensive options for patients seeking screening or diagnostic procedures across urban and rural communities.
Average
$443
Median
$344
Lowest
$85
Highest
$901
Providers
4,773
14% below national average
Compare Similar Procedures
How does colonoscopy compare to related procedures in Illinois?
| Procedure | CPT | Low | Median | High | Providers |
|---|---|---|---|---|---|
| Colonoscopy with Biopsy Colonoscopy with biopsy | 45380 | $80 | $441 | $1,147 | 4,920 |
| Colonoscopy with Polyp Removal Colonoscopy with polyp removal by snare | 45385 | $220 | $462 | $944 | 5,408 |
| Upper Endoscopy (EGD) Diagnostic upper GI endoscopy | 43235 | $118 | $290 | $534 | 3,608 |
| Upper Endoscopy with Biopsy Upper GI endoscopy with biopsy | 43239 | $70 | $339 | $696 | 5,884 |
| ECG / EKG 12-lead electrocardiogram with interpretation | 93000 | $17 | $24 | $85 | 10,197 |
| Echocardiogram Transthoracic echocardiogram with Doppler | 93306 | $74 | $178 | $378 | 6,654 |
| OB Ultrasound Obstetric ultrasound, complete | 76805 | $45 | $101 | $257 | 6,504 |
Important: These are cost estimates only — not a quote and not medical advice.
The prices on this page are self-pay rates, drawn from federal Transparency in Coverage machine-readable files (CPT 45378 — Diagnostic colonoscopy, flexible). They represent what a patient might pay without insurance.
Your actual cost depends on: your specific insurance plan, your remaining deductible, your coinsurance percentage, whether you have met your out-of-pocket maximum, whether the facility and provider are both in-network, and any separate anesthesia or implant fees billed independently.
This page does not constitute medical advice. Whether you need this procedure, and which approach is right for you, is a decision to make with a licensed healthcare provider.
Where this data comes from & what CPT 45378 covers
Data source: Cost figures are derived from UnitedHealthcare Transparency in Coverage machine-readable files for CPT code 45378 (Diagnostic colonoscopy, flexible), as mandated by the CMS Price Transparency Rule.
What CPT 45378 covers: the provider's professional fee for colonoscopy. It does not include facility/hospital fees, anesthesia, pre-operative imaging, post-operative care, or any add-on codes billed separately.
How to read this data
Negotiated Rate
The discounted price an insurer has agreed to pay a specific provider. Most insured patients' bills are calculated from this number, not the higher list price hospitals publish separately.
P5, Median, P95
P5 is the rate at the 5th percentile (low end), Median is the middle value, and P95 is the 95th percentile (high end). This range shows how much the same visit can vary between providers.
What this does not tell you
These rates do not tell you what you personally will pay out of pocket. That depends on your specific plan, how much of your deductible you have already met, your coinsurance rate, and whether the provider is in your network. Call your insurer's member line to get your exact estimate.
Why Colonoscopy Visit Costs Vary Across Illinois
Illinois colonoscopy costs run approximately 10% above national averages, driven by Chicago's high cost of living and the concentration of academic medical centers. The state's mix of densely populated urban areas and sparse rural counties creates significant cost variations between regions.
Urban vs. Rural Provider Availability
The Chicago metropolitan area hosts over 60% of Illinois gastroenterologists, creating competitive pricing and shorter wait times for colonoscopy procedures. Rural Illinois counties often have limited specialist access, requiring patients to travel to regional centers like Peoria, Springfield, or Rockford for procedures. This geographic maldistribution can drive up costs in underserved areas where demand exceeds local capacity.
Facility Type and Overhead Costs
Hospital-owned endoscopy centers in Illinois typically charge 30-50% more than independent ambulatory surgery centers due to higher overhead costs. Major health systems like Northwestern Medicine, Rush, and Advocate Aurora dominate the Chicago market, with facility fees reflecting their academic and research missions. Freestanding endoscopy centers in suburban markets often provide cost-effective alternatives with comparable quality outcomes.
Insurance Market Competition in Illinois
Illinois maintains a moderately competitive insurance market with BCBS Illinois, UnitedHealthcare, and Aetna holding the largest market shares. The presence of multiple payers creates negotiated rate competition, though consolidation among health systems has strengthened their bargaining power. Cook County's large uninsured population influences regional pricing strategies, with some facilities offering competitive self-pay rates.
Physician Supply and Demand in Illinois
Illinois's 4,773 colonoscopy providers represent adequate supply in urban areas but create access challenges in rural counties. The concentration of specialists around major medical schools and training programs in Chicago contributes to geographic disparities in both availability and pricing. High provider density in metropolitan areas typically correlates with more competitive pricing and shorter scheduling delays for routine screening procedures.
Jayant Panwar
CEO, Momentary Labs · San Francisco, CA
Jayant has analyzed healthcare pricing data from CMS Transparency in Coverage files since 2022, covering more than 50 million negotiated rate records across all 50 states. His work focuses on making insurer machine-readable files accessible to patients and researchers.
The cost figures on this page reflect his ongoing work to make this data accessible to patients.
Frequently Asked Questions — Colonoscopy Costs in Illinois
What is the average cost of a Colonoscopy visit in Illinois without insurance?
Does Illinois Medicaid cover Colonoscopy visits?
How do I find an affordable Colonoscopy near me in Illinois?
What is the difference in cost between an initial consultation and a follow-up visit?
Can I use an HSA or FSA to pay for a Colonoscopy visit in Illinois?
How does telemedicine affect the cost of seeing a Colonoscopy in Illinois?
Click a state to compare costs
Average Visit Cost
Office visit (CPT 45378)
Compare With Other States
| Rank | State | Average↓ |
|---|---|---|
| 1 | Wisconsin Range: $73 – $4,430 | $1,595 |
| 2 | North Dakota Range: $165 – $2,255 | $1,558 |
| 3 | Minnesota Range: $90 – $2,255 | $1,217 |
| 4 | South Dakota Range: $85 – $2,255 | $895 |
| 5 | Massachusetts Range: $113 – $1,830 | $815 |
| 6 | Rhode Island Range: $91 – $1,830 | $781 |
| 7 | Connecticut Range: $90 – $1,830 | $748 |
| 8 | Delaware Range: $95 – $1,830 | $747 |
| 9 | Pennsylvania Range: $85 – $1,830 | $746 |
| 10 | New York Range: $101 – $1,830 | $743 |
| 11 | West Virginia Range: $85 – $1,395 | $612 |
| 12 | Nebraska Range: $265 – $815 | $594 |
| 13 | New Hampshire Range: $204 – $956 | $571 |
| 14 | Wyoming Range: $158 – $1,057 | $530 |
| 15 | North Carolina Range: $90 – $1,065 | $511 |
| 16 | Georgia Range: $90 – $982 | $507 |
| 17 | New Jersey Range: $110 – $1,117 | $505 |
| 18 | New Mexico Range: $168 – $954 | $502 |
| 19 | Iowa Range: $85 – $944 | $498 |
| 20 | Maine Range: $220 – $674 | $485 |
| 21 | Illinois Range: $85 – $901 | $443 |
| 22 | Utah Range: $85 – $741 | $441 |
| 23 | District of Columbia Range: $126 – $815 | $437 |
| 24 | Indiana Range: $81 – $835 | $425 |
| 25 | Vermont Range: $106 – $801 | $418 |
| 26 | Missouri Range: $174 – $634 | $417 |
| 27 | Washington Range: $80 – $856 | $411 |
| 28 | Oregon Range: $80 – $836 | $408 |
| 29 | Kentucky Range: $85 – $814 | $408 |
| 30 | Maryland Range: $162 – $712 | $396 |
| 31 | Michigan Range: $92 – $768 | $395 |
| 32 | Colorado Range: $85 – $760 | $385 |
| 33 | Hawaii Range: $85 – $757 | $385 |
| 34 | Mississippi Range: $151 – $719 | $381 |
| 35 | Alabama Range: $147 – $649 | $373 |
| 36 | Virginia Range: $124 – $682 | $368 |
| 37 | Louisiana Range: $116 – $670 | $366 |
| 38 | South Carolina Range: $90 – $695 | $363 |
| 39 | Idaho Range: $80 – $735 | $363 |
| 40 | Nevada Range: $204 – $553 | $351 |
| 41 | Arkansas Range: $85 – $634 | $345 |
| 42 | Texas Range: $85 – $634 | $336 |
| 43 | Kansas Range: $174 – $530 | $331 |
| 44 | Ohio Range: $85 – $565 | $325 |
| 45 | Tennessee Range: $90 – $582 | $320 |
| 46 | Oklahoma Range: $85 – $606 | $303 |
| 47 | Arizona Range: $155 – $472 | $300 |
| 48 | California Range: $85 – $647 | $272 |
| 49 | Alaska Range: $80 – $648 | $269 |
| 50 | Montana Range: $80 – $538 | $233 |
| 51 | Florida Range: $35 – $604 | $231 |