Medicare Advantage in Iosco County, Michigan
5,749 people in Iosco County, Michigan were enrolled in Medicare Advantage in October 2026, 59.2% of 9,706 eligible beneficiaries (+0.9 pts since October 2025). Blue Cross Blue Shield of Michigan Mutual Ins. Co. is the largest parent organization with 42% of reported enrollment; 9 parent organizations have 11 or more members and the HHI is 2,608 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 1,090 members here are in plans that terminate or leave the county. MA plans offered go from 41 to 38.
Parent organizations in Iosco County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 2,426 | −599 | 42.4% |
| Corewell Health | 1,093 | +361 | 19.1% |
| Henry Ford Health System | 883 | +485 | 15.4% |
| Humana Inc. | 666 | +135 | 11.6% |
| UnitedHealth Group, Inc. | 471 | −81 | 8.2% |
| Centene Corporation | 77 | +21 | 1.3% |
| CVS Health Corporation | 43 | −158 | 0.8% |
| Molina Healthcare, Inc. | 40 | +7 | 0.7% |
| McLaren Health Care Corporation | 22 | −15 | 0.4% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 932 beneficiaries in Iosco County were assigned to 38 Medicare Shared Savings Program ACOs, 29.6% of assignable Original Medicare beneficiaries. Together, roughly 71% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.