MedicaidAdministrativeMedium impact
Revised Alpha and Numeric Lists of Pharmaceutical Labelers with Signed Rebate Agreements
Illinois Medicaid - HFS·IL · Pharmacy·Provider Notice
Effective date
Dec 7, 2004
We identified it
Jun 21, 2026
Summary
Illinois updated the lists of pharmaceutical labelers with signed Medicaid Drug Rebate Agreements. Pharmacies must use accurate 11-digit NDC numbers when billing and be prepared to show purchase invoices during audits, regardless of whether the labeler has a rebate agreement.
Action Required
Immediately: Billing team must verify all pharmaceutical claims use accurate 11-digit NDC numbers. Pharmacy staff must maintain purchase invoices for all drug products billed to Illinois Medicaid for audit purposes. Review updated alpha and numeric lists of approved pharmaceutical labelers available from the Illinois Department of Human Services.