CT Scan Cost in Illinois (2026): Average Prices & What You'll Pay

What does a ct scan cost in Illinois?

Expect roughly $412 to $1,340 for a ct scan in Illinois if you're commercially insured - that range already folds in both the facility charge and the physician fee. The median reported facility price across 89 hospitals is $715. It's built from CMS fee schedules and federally mandated hospital price transparency data.

Where ct scan costs vary in Illinois

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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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. CT scan pricing is driven almost entirely by site of service - the identical scan costs 3–6× more at a hospital outpatient department than at an independent imaging center. With-contrast and without-contrast scans carry different CPT codes and prices, so confirm which your physician ordered before scheduling. For non-urgent imaging, comparing cash prices across independent imaging centers near you typically yields the largest savings.

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Why prices vary - and what it means for your coverage

Setting matters too: the median outpatient price is $550 versus $806 inpatient (about 1.5× more), so where a procedure happens often matters more than which hospital you pick. Whether the scan happens in a hospital outpatient department (which adds a separate facility fee) or a freestanding imaging center is usually the single biggest driver of price for this procedure.

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.

Frequently asked questions: CT Scan costs in Illinois

How much does a CT Scan cost in Illinois?

Across 89 Illinois hospitals that publish prices, a CT Scan ranges from $100 to $11,602, with a median of $715. Most facilities fall between $184 and $1,140. What you pay depends on the facility, your insurance, and whether you have met your deductible.

Where is the cheapest place to get a CT Scan in Illinois?

Based on declared prices, the lowest-cost facility in our Illinois data is Loyola University Medical Center in Maywood at about $51. By metro, Oak Lawn has the lowest median ($780). 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 CT Scan so much cheaper at some Illinois hospitals?

Prices vary up to 116× because each hospital sets its own list price, cash discount, and insurer-negotiated rates. In Illinois, the median cash (self-pay) price is $722 versus a median negotiated rate of $160 - about 4.5× 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 CT Scan in Illinois?

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.

CostKits compiles hospital price transparency data to help families make informed decisions. Track and manage your healthcare costs (free account).