Medicare Advantage in Livingston County, Michigan
26,954 people in Livingston County, Michigan were enrolled in Medicare Advantage in October 2026, 55.0% of 49,029 eligible beneficiaries (−0.2 pts since October 2025). Blue Cross Blue Shield of Michigan Mutual Ins. Co. is the largest parent organization with 55% of reported enrollment; 13 parent organizations have 11 or more members and the HHI is 3,346 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 322 members here are in plans that terminate or leave the county. MA plans offered go from 66 to 62.
Parent organizations in Livingston County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 14,664 | −864 | 54.5% |
| Corewell Health | 3,173 | +260 | 11.8% |
| Humana Inc. | 2,525 | +508 | 9.4% |
| Henry Ford Health System | 2,430 | +745 | 9.0% |
| CVS Health Corporation | 1,569 | +219 | 5.8% |
| UnitedHealth Group, Inc. | 1,149 | −177 | 4.3% |
| Trinity Health Corporation | 767 | +394 | 2.9% |
| Centene Corporation | 318 | +5 | 1.2% |
| Zing Health Consolidator, Inc | 176 | +59 | 0.7% |
| Longevity Health Founders, LLC | 54 | −4 | 0.2% |
| Elevance Health, Inc. | 30 | +1 | 0.1% |
| Molina Healthcare, Inc. | 16 | −8 | under 0.1% |
| Utd Methodist Retirement Communities of SE MI | 16 | +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, 10,534 beneficiaries in Livingston County were assigned to 74 Medicare Shared Savings Program ACOs, 71.4% 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.