Medicare Advantage in Boone County, Kentucky
14,870 people in Boone County, Kentucky were enrolled in Medicare Advantage in October 2026, 56.5% of 26,305 eligible beneficiaries (+0.6 pts since October 2025). Humana Inc. is the largest parent organization with 52% of reported enrollment; 9 parent organizations have 11 or more members and the HHI is 3,375 (highly concentrated). For 2027, 456 members here are in plans that terminate or leave the county. MA plans offered go from 45 to 43.
Parent organizations in Boone County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 7,780 | +2,286 | 52.5% |
| UnitedHealth Group, Inc. | 2,923 | −705 | 19.7% |
| Elevance Health, Inc. | 1,681 | −1,651 | 11.4% |
| Health Care Service Corporation | 1,308 | +1,127 | 8.8% |
| Centene Corporation | 394 | +70 | 2.7% |
| CVS Health Corporation | 373 | −654 | 2.5% |
| Devoted Health, Inc. | 313 | +213 | 2.1% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 20 | 0 | 0.1% |
| Volunteers of America National Services | 16 | +5 | 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, 5,610 beneficiaries in Boone County were assigned to 58 Medicare Shared Savings Program ACOs, 70.2% 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.