Medicare Advantage in Montmorency County, Michigan
2,612 people in Montmorency County, Michigan were enrolled in Medicare Advantage in October 2026, 62.1% of 4,209 eligible beneficiaries (+0.1 pts since October 2025). Blue Cross Blue Shield of Michigan Mutual Ins. Co. is the largest parent organization with 39% of reported enrollment; 7 parent organizations have 11 or more members and the HHI is 2,968 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 633 members here are in plans that terminate or leave the county. MA plans offered go from 31 to 36.
Parent organizations in Montmorency County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 1,010 | −340 | 39.1% |
| Humana Inc. | 800 | +194 | 30.9% |
| Corewell Health | 539 | +156 | 20.9% |
| UnitedHealth Group, Inc. | 178 | +47 | 6.9% |
| CVS Health Corporation | 23 | −58 | 0.9% |
| McLaren Health Care Corporation | 19 | +4 | 0.7% |
| Molina Healthcare, Inc. | 16 | +2 | 0.6% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 653 beneficiaries in Montmorency County were assigned to 26 Medicare Shared Savings Program ACOs, 48.3% of assignable Original Medicare beneficiaries. Together, roughly 80% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.