Medicare Advantage in Marion County, Kentucky
2,236 people in Marion County, Kentucky were enrolled in Medicare Advantage in October 2026, 48.8% of 4,583 eligible beneficiaries (−0.1 pts since October 2025). Humana Inc. is the largest parent organization with 60% of reported enrollment; 6 parent organizations have 11 or more members and the HHI is 4,191 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 190 members here are in plans that terminate or leave the county. MA plans offered go from 31 to 31.
Parent organizations in Marion County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 1,339 | +285 | 60.2% |
| UnitedHealth Group, Inc. | 407 | −176 | 18.3% |
| Elevance Health, Inc. | 319 | −81 | 14.3% |
| Centene Corporation | 125 | +5 | 5.6% |
| CVS Health Corporation | 18 | −4 | 0.8% |
| Molina Healthcare, Inc. | 18 | +4 | 0.8% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 482 beneficiaries in Marion County were assigned to 24 Medicare Shared Savings Program ACOs, 25.9% of assignable Original Medicare beneficiaries. Together, roughly 62% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.