Traditional MedicareAdministrativeMedium impact
MMP 22-52
Michigan Medicaid - MDHHS·MI·Provider Bulletin
Effective date
Jan 1, 2023
We identified it
Jun 20, 2026
Summary
Michigan Medicaid now allows Medicare providers to enroll for a limited purpose - only submitting dual eligible cost-sharing claims - without full Medicaid enrollment. This new 'Medicare Cost Share' enrollment option in CHAMPS system processes claims starting January 1, 2023, but only when Medicare is primary.
Action Required
By January 1, 2023: Michigan providers treating dual eligible patients must contact Provider Enrollment at ProviderEnrollment@michigan.gov to enroll for the new 'Medicare Cost Share' option in CHAMPS if they want to bill Medicaid for Medicare cost-sharing without full Medicaid enrollment. All provider types on claims (billing, rendering, attending, ordering, referring) must be enrolled as either Medicare cost-sharing only or full Medicaid providers. Claims will be denied if Medicare is not reported as primary payer.