Illinois Medical Billing Rights & Protections
Everything you need to know about fighting unfair medical bills in Illinois. Learn your rights, understand state laws, and take action.
Surprise Bill Protection
State + Federal
Balance Billing
Prohibited
Charity Care Law
Yes
Avg ER Cost
$2,450
Educational Content: This page provides general information about medical billing rights in Illinois. Laws change frequently. This is not legal advice. Consult a qualified attorney or patient advocate for your specific situation.
Illinois Medical Billing Laws
Illinois has comprehensive patient billing protections. The state's surprise billing law (Public Act 100-0600, effective 2019) prohibits balance billing for emergency services and for out-of-network providers at in-network facilities. The Illinois Fair Patient Billing Act requires hospitals to have financial assistance policies, screen patients for eligibility, and limits charges for uninsured patients. Illinois hospitals must provide uninsured patients with a discount of at least 25% off charges or charge no more than the amount that would be paid by Medicare or Medicaid. The Illinois Department of Insurance handles complaints about insurance companies and has an active consumer assistance program. The state also has a Hospital Uninsured Patient Discount Act that provides additional protections.
Illinois has strong medical debt protections. The statute of limitations on medical debt is 5 years under 735 ILCS 5/13-205. The Illinois Fair Patient Billing Act requires hospitals to have financial assistance policies and limits what hospitals can charge uninsured patients. Illinois also has the Collection Agency Act (225 ILCS 425) which provides additional protections beyond the federal FDCPA. The state expanded Medicaid, covering adults up to 138% FPL.
Your Key Protections in Illinois
State surprise billing law prohibits balance billing for emergency and out-of-network services at in-network facilities
Fair Patient Billing Act requires hospital financial assistance policies and patient screening
Hospital Uninsured Patient Discount Act requires minimum 25% discount for uninsured patients
Illinois Collection Agency Act provides protections beyond federal FDCPA
5-year statute of limitations on medical debt (735 ILCS 5/13-205)
Medicaid expansion covers adults up to 138% FPL
Illinois Department of Insurance consumer assistance program
Hospitals cannot charge uninsured patients more than Medicare/Medicaid rates
How to Dispute a Medical Bill in Illinois
Request an itemized bill with all CPT and ICD-10 codes from the provider
Check if the bill violates Illinois surprise billing law — emergency services and out-of-network providers at in-network facilities are protected
Verify if you qualify for the Hospital Uninsured Patient Discount Act — minimum 25% discount for uninsured patients
Apply for the hospital's financial assistance program — Illinois hospitals must screen patients for eligibility
Send a written dispute via certified mail to the billing department
File a complaint with the Illinois Department of Insurance at (866) 445-5364
Contact the Illinois Attorney General's Consumer Protection Bureau at (800) 386-5438
Important Deadlines in Illinois
5-year statute of limitations on medical debt (735 ILCS 5/13-205)
30 days to dispute a debt with a collector
180 days for internal insurance appeals
1 year before medical debt appears on credit reports
Check Medicaid eligibility — retroactive coverage available for 90 days
Average Medical Costs in Illinois
Avg ER Visit
$2,450
Avg Urgent Care
$200
Median Income
$72,205
200% FPL (Single)
$31,280