Medicare Advantage in Kent County, Michigan
93,486 people in Kent County, Michigan were enrolled in Medicare Advantage in October 2026, 74.4% of 125,599 eligible beneficiaries (+0.4 pts since October 2025). Corewell Health is the largest parent organization with 61% of reported enrollment; 13 parent organizations have 11 or more members and the HHI is 4,132 (highly concentrated). For 2027, 6,893 members here are in plans that terminate or leave the county. MA plans offered go from 60 to 63.
Parent organizations in Kent County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Corewell Health | 56,990 | +2,537 | 61.1% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 16,430 | −2,252 | 17.6% |
| Humana Inc. | 6,177 | +712 | 6.6% |
| UnitedHealth Group, Inc. | 5,178 | −13 | 5.5% |
| CVS Health Corporation | 3,264 | +249 | 3.5% |
| Trinity Health Corporation | 1,981 | +742 | 2.1% |
| Henry Ford Health System | 1,331 | +774 | 1.4% |
| Centene Corporation | 720 | +58 | 0.8% |
| Molina Healthcare, Inc. | 702 | −177 | 0.8% |
| Care Resources | 374 | +13 | 0.4% |
| Curana Health Holdings, LLC | 138 | +63 | 0.1% |
| Elevance Health, Inc. | 32 | +3 | under 0.1% |
| McLaren Health Care Corporation | 22 | −3 | under 0.1% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 15,224 beneficiaries in Kent County were assigned to 112 Medicare Shared Savings Program ACOs, 68.5% of assignable Original Medicare beneficiaries. Together, roughly 92% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.