Medicare Advantage in Harrison County, West Virginia
9,551 people in Harrison County, West Virginia were enrolled in Medicare Advantage in October 2026, 57.5% of 16,615 eligible beneficiaries (+1.1 pts since October 2025). Humana Inc. is the largest parent organization with 48% of reported enrollment; 9 parent organizations have 11 or more members and the HHI is 2,796 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 705 members here are in plans that terminate or leave the county. MA plans offered go from 36 to 33.
Parent organizations in Harrison County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 4,576 | +223 | 48.0% |
| UnitedHealth Group, Inc. | 1,211 | −239 | 12.7% |
| West Virginia United Health System, Inc. | 972 | +459 | 10.2% |
| Highmark Health | 943 | −187 | 9.9% |
| CVS Health Corporation | 905 | −29 | 9.5% |
| UMWA Health and Retirement Funds | 425 | −22 | 4.5% |
| The Health Plan of West Virginia, Inc. | 305 | +21 | 3.2% |
| SNP Holdings, LLC | 171 | +36 | 1.8% |
| Elevance Health, Inc. | 17 | new | 0.2% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 4,038 beneficiaries in Harrison County were assigned to 29 Medicare Shared Savings Program ACOs, 72.9% of assignable Original Medicare beneficiaries. Together, roughly 88% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.