Medicare Advantage in Jackson County, Michigan
23,905 people in Jackson County, Michigan were enrolled in Medicare Advantage in October 2026, 61.4% of 38,911 eligible beneficiaries (+0.8 pts since October 2025). Blue Cross Blue Shield of Michigan Mutual Ins. Co. is the largest parent organization with 40% of reported enrollment; 11 parent organizations have 11 or more members and the HHI is 2,452 (highly concentrated). For 2027, 119 members here are in plans that terminate or leave the county. MA plans offered go from 52 to 55.
Parent organizations in Jackson County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 9,504 | −981 | 39.9% |
| Humana Inc. | 5,321 | −15 | 22.3% |
| Corewell Health | 3,012 | +316 | 12.6% |
| CVS Health Corporation | 2,445 | +792 | 10.3% |
| Henry Ford Health System | 2,217 | +910 | 9.3% |
| UnitedHealth Group, Inc. | 632 | −122 | 2.7% |
| Centene Corporation | 334 | +22 | 1.4% |
| United Methodist Retirement Communities, Inc. | 232 | +10 | 1.0% |
| Highmark Health | 90 | −25 | 0.4% |
| Curana Health Holdings, LLC | 19 | new | under 0.1% |
| McLaren Health Care Corporation | 18 | −1 | 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, 8,980 beneficiaries in Jackson County were assigned to 73 Medicare Shared Savings Program ACOs, 74.7% of assignable Original Medicare beneficiaries. Together, roughly 90% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.