Medicare Advantage in Jefferson County, Kentucky
82,439 people in Jefferson County, Kentucky were enrolled in Medicare Advantage in October 2026, 51.0% of 161,710 eligible beneficiaries (+0.00 pts since October 2025). Humana Inc. is the largest parent organization with 61% of reported enrollment; 15 parent organizations have 11 or more members and the HHI is 4,080 (highly concentrated). For 2027, 3,092 members here are in plans that terminate or leave the county. MA plans offered go from 39 to 37.
Parent organizations in Jefferson County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 49,878 | +13,693 | 60.7% |
| Elevance Health, Inc. | 13,426 | −4,113 | 16.3% |
| UnitedHealth Group, Inc. | 7,490 | −7,067 | 9.1% |
| Centene Corporation | 4,229 | −991 | 5.1% |
| CVS Health Corporation | 3,449 | −2,010 | 4.2% |
| Devoted Health, Inc. | 1,793 | +1,361 | 2.2% |
| Molina Healthcare, Inc. | 783 | +43 | 1.0% |
| Lumeris Group Holdings Corporation | 700 | +220 | 0.9% |
| BrightSpring Health Services, Inc. | 200 | +54 | 0.2% |
| Volunteers of America National Services | 143 | +47 | 0.2% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 66 | +4 | under 0.1% |
| Highmark Health | 17 | +4 | under 0.1% |
| Health Care Service Corporation | 16 | +3 | under 0.1% |
| UMWA Health and Retirement Funds | 15 | +2 | under 0.1% |
| Fenyx Health Holdings, Inc. | 13 | new | 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, 16,266 beneficiaries in Jefferson County were assigned to 155 Medicare Shared Savings Program ACOs, 29.2% of assignable Original Medicare beneficiaries. Together, roughly 65% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.