MedicaidAdministrativeMedium impact
State Maximum Allowable Cost Program for Multi-Source Prescription Drugs
Illinois Medicaid - HFS·IL · Pharmacy·Provider Notice
Effective date
Mar 1, 2005
We identified it
Jun 21, 2026
Summary
Illinois Department of Public Aid has contracted with Myers and Stauffer LC to manage the State Maximum Allowable Cost (MAC) program for multi-source prescription drugs. Pharmacy providers may be asked to provide purchase documentation and should monitor www.mslcillinois.com for MAC rate updates posted two weeks before implementation.
Action Required
Pharmacy providers should register at www.mslcillinois.com to monitor MAC rate updates and be prepared to provide purchase documentation (invoices) to Myers and Stauffer when requested. Contact Myers and Stauffer at 800-591-1183 for MAC-related questions and the Illinois Department at 217-782-2570 for policy questions.