Medicare Advantage in Knox County, Kentucky
4,816 people in Knox County, Kentucky were enrolled in Medicare Advantage in October 2026, 61.7% of 7,809 eligible beneficiaries (+1.1 pts since October 2025). Humana Inc. is the largest parent organization with 41% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 2,514 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 560 members here are in plans that terminate or leave the county. MA plans offered go from 36 to 31.
Parent organizations in Knox County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 1,951 | +619 | 40.7% |
| CVS Health Corporation | 936 | +27 | 19.5% |
| Elevance Health, Inc. | 699 | −331 | 14.6% |
| UnitedHealth Group, Inc. | 661 | −261 | 13.8% |
| Centene Corporation | 381 | −10 | 8.0% |
| Devoted Health, Inc. | 112 | +81 | 2.3% |
| One Senior Care, Inc. | 38 | +3 | 0.8% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 12 | new | 0.3% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 1,282 beneficiaries in Knox County were assigned to 18 Medicare Shared Savings Program ACOs, 60.6% of assignable Original Medicare beneficiaries. Together, roughly 85% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.