Medicare Advantage in Gratiot County, Michigan
6,346 people in Gratiot County, Michigan were enrolled in Medicare Advantage in October 2026, 67.6% of 9,390 eligible beneficiaries (+1.9 pts since October 2025). Blue Cross Blue Shield of Michigan Mutual Ins. Co. is the largest parent organization with 50% of reported enrollment; 10 parent organizations have 11 or more members and the HHI is 3,027 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 67 members here are in plans that terminate or leave the county. MA plans offered go from 54 to 55.
Parent organizations in Gratiot County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 3,135 | −348 | 49.6% |
| Humana Inc. | 972 | +120 | 15.4% |
| Henry Ford Health System | 798 | +469 | 12.6% |
| Corewell Health | 718 | +175 | 11.4% |
| UnitedHealth Group, Inc. | 299 | −27 | 4.7% |
| CVS Health Corporation | 246 | +30 | 3.9% |
| PACE Central Michigan, Inc. | 69 | +6 | 1.1% |
| Centene Corporation | 41 | +26 | 0.6% |
| Molina Healthcare, Inc. | 28 | −3 | 0.4% |
| Trinity Health Corporation | 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, 1,644 beneficiaries in Gratiot County were assigned to 18 Medicare Shared Savings Program ACOs, 60.2% of assignable Original Medicare beneficiaries. Together, roughly 87% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.