The MHA recently updated its analysis of Medicaid and Medicare enrollment using May 2026 data. The analysis includes program enrollment as a percentage of each county’s total population, along with the distribution of beneficiaries enrolled in fee-for-service (FFS) and managed care organization (MCO) plans.
More than 25% of Michigan’s population is enrolled in Medicaid, while 23% is enrolled in Medicare. Roughly two-thirds of the state’s nearly 2.5 million Medicaid beneficiaries are enrolled in one of nine MCOs.
Total Medicare enrollment is 2.3 million, with 64% of beneficiaries enrolled in a Medicaid Advantage (MA) plan. MA enrollment varies by county, ranging from 45% to 79%. Only three counties have less than 50% of Medicare beneficiaries enrolled in an MA plan, while 74 counties have 55% or more enrolled in an MA plan, as highlighted below.
Enrollment data from May show beneficiaries are enrolled across 44 MA plans. At least five plans are available in every county, while several Michigan counties offer as many as 28 plans.
Members with enrollment questions should contact the MHA health finance team.