IL SB1421

Requires health care providers to review patient files for supplemental insurance policies (Medicare supplement or secondary payer plans) before pursuing collection action against insured patients.

Mandates providers notify patients and give them opportunity to verify bill accuracy, clarify supplemental policy coverage, and address payment before collection action proceeds.

Allows collection action only after provider exhausts review and notification requirements and finds no supplemental policy exists and receives no payment.

Modifies existing Fair Patient Billing Act requirements for insured patients by adding a 30-day payment plan opportunity period after supplemental policy review process is completed.

Requires written approval from authorized hospital employee before collection agencies or attorneys can initiate legal action, ensuring compliance with collection conditions.