Medicare Advantage in Shelby County, Kentucky
5,174 people in Shelby County, Kentucky were enrolled in Medicare Advantage in October 2026, 49.2% of 10,520 eligible beneficiaries (−0.2 pts since October 2025). Humana Inc. is the largest parent organization with 61% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 4,185 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 411 members here are in plans that terminate or leave the county. MA plans offered go from 33 to 31.
Parent organizations in Shelby County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 3,136 | +1,030 | 61.0% |
| Elevance Health, Inc. | 979 | −212 | 19.0% |
| UnitedHealth Group, Inc. | 424 | −568 | 8.2% |
| CVS Health Corporation | 228 | −175 | 4.4% |
| Devoted Health, Inc. | 154 | +115 | 3.0% |
| Centene Corporation | 147 | −90 | 2.9% |
| Lumeris Group Holdings Corporation | 52 | +21 | 1.0% |
| Molina Healthcare, Inc. | 24 | +7 | 0.5% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 1,397 beneficiaries in Shelby County were assigned to 45 Medicare Shared Savings Program ACOs, 37.7% of assignable Original Medicare beneficiaries. Together, roughly 68% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.