Medicare Advantage in Lenawee County, Michigan
15,510 people in Lenawee County, Michigan were enrolled in Medicare Advantage in October 2026, 61.3% of 25,295 eligible beneficiaries (+0.9 pts since October 2025). Blue Cross Blue Shield of Michigan Mutual Ins. Co. is the largest parent organization with 47% of reported enrollment; 10 parent organizations have 11 or more members and the HHI is 3,012 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 733 members here are in plans that terminate or leave the county, and MEDICAL MUTUAL OF OHIO leaves. MA plans offered go from 52 to 44.
Parent organizations in Lenawee County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 7,308 | −452 | 47.3% |
| Humana Inc. | 3,329 | +222 | 21.5% |
| Corewell Health | 2,323 | +235 | 15.0% |
| CVS Health Corporation | 1,176 | +253 | 7.6% |
| Henry Ford Health System | 678 | +259 | 4.4% |
| MEDICAL MUTUAL OF OHIO | 493 | −89 | 3.2% |
| UnitedHealth Group, Inc. | 90 | −25 | 0.6% |
| Elevance Health, Inc. | 35 | +5 | 0.2% |
| United Methodist Retirement Communities, Inc. | 14 | +3 | under 0.1% |
| Molina Healthcare, Inc. | 13 | −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, 5,349 beneficiaries in Lenawee County were assigned to 62 Medicare Shared Savings Program ACOs, 71.8% of assignable Original Medicare beneficiaries. Together, roughly 89% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.