Medicare Advantage in Alpena County, Michigan
5,560 people in Alpena County, Michigan were enrolled in Medicare Advantage in October 2026, 57.5% of 9,674 eligible beneficiaries (+1.3 pts since October 2025). Corewell Health is the largest parent organization with 41% of reported enrollment; 7 parent organizations have 11 or more members and the HHI is 3,080 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 2,730 members here are in plans that terminate or leave the county. MA plans offered go from 25 to 18.
Parent organizations in Alpena County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Corewell Health | 2,265 | +566 | 41.0% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 1,740 | −562 | 31.5% |
| Humana Inc. | 1,054 | +210 | 19.1% |
| UnitedHealth Group, Inc. | 352 | −51 | 6.4% |
| CVS Health Corporation | 62 | −1 | 1.1% |
| Molina Healthcare, Inc. | 39 | +15 | 0.7% |
| PACE Northeast Michigan | 12 | new | 0.2% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 2,576 beneficiaries in Alpena County were assigned to 33 Medicare Shared Savings Program ACOs, 71.2% of assignable Original Medicare beneficiaries. Together, roughly 88% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.