MedicaidPrior AuthMedium impact
MSA 16-06
Michigan Medicaid - MDHHS·MI · Oncology, Neurology·Provider Bulletin
Effective date
Apr 1, 2016
We identified it
Jun 20, 2026
Summary
Michigan Medicaid is transitioning to a Managed Care Common Formulary, requiring prior authorization for non-formulary drugs starting April 1, 2016, with full transition by September 30, 2016. Certain drug classes (antineoplastics, immunosuppressants, MS medications) are grandfathered until April 1, 2017.
Action Required
By September 30, 2016: Review all Medicaid patients' current medications against the Common Formulary. For non-formulary drugs, obtain prior authorization or work with providers to switch to formulary alternatives. Pay special attention to maintenance drugs (60-day supply in previous 90 days) and ensure patients in grandfathered drug classes (antineoplastics, immunosuppressants, MS medications) are properly identified in the system.