Medicare Advantage in Kalkaska County, Michigan
3,409 people in Kalkaska County, Michigan were enrolled in Medicare Advantage in October 2026, 63.6% of 5,359 eligible beneficiaries (−0.2 pts since October 2025). Corewell Health is the largest parent organization with 30% of reported enrollment; 7 parent organizations have 11 or more members and the HHI is 2,342 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 1,047 members here are in plans that terminate or leave the county. MA plans offered go from 45 to 41.
Parent organizations in Kalkaska County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Corewell Health | 1,004 | +167 | 29.8% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 902 | −334 | 26.8% |
| Humana Inc. | 818 | +170 | 24.3% |
| UnitedHealth Group, Inc. | 336 | −17 | 10.0% |
| CVS Health Corporation | 206 | −7 | 6.1% |
| Henry Ford Health System | 86 | new | 2.6% |
| Centene Corporation | 14 | new | 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, 179 beneficiaries in Kalkaska County were assigned to 28 Medicare Shared Savings Program ACOs, 12.0% of assignable Original Medicare beneficiaries. Together, roughly 68% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.