Medical Billing Rights in Illinois
About this article
Reviewed by the Commoner Law Editorial Team. Sourced from primary statutes (U.S. Code, CFR, state compiled statutes) and official government agency guidance. Written in plain language for general understanding — this is educational content, not legal advice. Our editorial standards
How Illinois differs from federal law
Illinois has strong patient billing protections including surprise billing laws:
- Surprise billing protections: Illinois's Network Adequacy and Transparency Act (215 ILCS 124) protects insured patients from surprise bills from out-of-network providers at in-network facilities for emergency and ancillary services.
- Fair Patient Billing Act (210 ILCS 89): Requires hospitals to provide itemized billing statements, maintain financial assistance policies, and limit collection actions against patients who qualify for financial assistance.
- Uninsured Patient Discount Act (210 ILCS 89/27): Hospitals must offer discounts to uninsured patients equal to or greater than the best discount available to insured patients.
- Collection restrictions: Hospitals cannot report medical debt to credit agencies within 180 days and cannot place liens on a patient's primary residence for medical debt.
Additional Steps in Illinois
Request an itemized bill and ask about financial assistance programs. File complaints with the Illinois Attorney General at (800) 386-5438 or the Illinois Department of Insurance at (866) 445-5364. For federal No Surprises Act disputes, visit cms.gov/nosurprises.
Relevant Law: 210 ILCS 89 (Fair Patient Billing Act), 215 ILCS 124 (Network Adequacy and Transparency Act), 210 ILCS 89/27 (Uninsured Patient Discount Act)
Federal baseline: Medical Billing Rights nationwide
What is this right?
The No Surprises Act took effect January 1, 2022, after years of horror stories about patients receiving four- and five-figure bills from anesthesiologists, radiologists, and ER doctors they never chose and never met. The fix: out-of-network providers can't bill you more than your in-network cost-sharing amount in most emergency and certain non-emergency situations.
If you're uninsured or self-paying, you have the right to a good faith estimate of costs before scheduled care. If the final bill exceeds the estimate by $400 or more, you can dispute it. You also have the right to an itemized bill for any service — and you should ask for one routinely. Independent studies have estimated that a substantial percentage of hospital bills contain errors.
When does it apply?
The No Surprises Act protects you when:
- You receive emergency care at any hospital or ER, regardless of network status.
- An out-of-network doctor (anesthesiologist, radiologist, pathologist, ER physician) treats you at an in-network hospital.
- You are airlifted by an out-of-network air ambulance.
- You are uninsured or self-paying and want to know costs up front.
- You receive a bill you think is wrong or inflated.
Three myths:
- "The No Surprises Act covers everything." It covers emergency services and out-of-network providers at in-network facilities. If you knowingly choose an out-of-network provider for non-emergency care and sign a consent notice waiving your protections, you can still get a higher bill.
- "I can't fight a medical bill." You can. Request an itemized bill, compare it line by line against your insurance EOB, dispute errors, and negotiate. Hospitals routinely accept less than the billed amount.
- "Uninsured means no protections." Wrong. Uninsured patients have a right to a good faith estimate before scheduled care. Final bill exceeds the estimate by $400+, and you can dispute through the patient-provider dispute resolution process at cms.gov/nosurprises.
What to Do If You Received an Unexpected or Incorrect Medical Bill
Step 1: Get the good faith estimate first if you can. Uninsured or self-pay? Providers and facilities must give you an estimate of expected charges before scheduled care. Save the document — it's your evidence if the actual bill is way off.
Step 2: Demand an itemized bill. Every line, every code, every supply. Compare against your insurance EOB. Errors at the line-item level are extremely common.
Step 3: For surprise bills, invoke the Act in writing. Contact your insurer and the provider. Under the No Surprises Act, you owe only your in-network cost-sharing amount (copay, coinsurance, deductible) for covered situations.
Step 4: Dispute resolution within 120 days. Final bill exceeds your good faith estimate by $400+? Start the patient-provider dispute resolution at cms.gov/nosurprises or call 1-800-985-3059. The 120-day window from the date of the bill is firm.
Step 5: Ask about financial assistance. Under IRC § 501(r), every tax-exempt nonprofit hospital must have a written financial assistance policy and screen patients for it before pursuing collections. Income thresholds are often surprisingly generous — frequently 200—400% of the federal poverty level. Apply even if you think you don't qualify.
What should you NOT do?
Don't ignore medical bills. Unpaid bills end up in collections, damage credit (though new rules have softened this), and can become lawsuits. If you're disputing, respond in writing inside the timeframes given.
Don't sign waivers of your surprise billing protections without reading. Out-of-network providers may ask you to sign a "notice and consent" form waiving No Surprises Act protections for non-emergency care. You're never required to sign this for emergencies. For non-emergencies, signing means agreeing to pay out-of-network rates that may run thousands more.
Don't pay a bill you suspect is wrong without questioning it. Itemized bill, line by line, EOB comparison. Errors are common and money paid is much harder to claw back than money disputed.
Don't assume you can't negotiate. Providers regularly reduce bills, offer interest-free payment plans, give prompt-payment discounts, and write off debt for people who qualify for charity care. Ask before paying full price.
You shouldn't have to hire a lawyer to assert your rights.
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