Medicare Advantage in Jefferson County, West Virginia
5,447 people in Jefferson County, West Virginia were enrolled in Medicare Advantage in October 2026, 41.1% of 13,257 eligible beneficiaries (+0.4 pts since October 2025). Humana Inc. is the largest parent organization with 48% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 3,059 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 332 members here are in plans that terminate or leave the county. MA plans offered go from 36 to 28.
Parent organizations in Jefferson County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 2,578 | +126 | 47.7% |
| UnitedHealth Group, Inc. | 1,235 | +20 | 22.8% |
| CVS Health Corporation | 631 | −7 | 11.7% |
| Highmark Health | 491 | −111 | 9.1% |
| West Virginia United Health System, Inc. | 357 | new | 6.6% |
| SNP Holdings, LLC | 44 | −6 | 0.8% |
| CareFirst, Inc. | 37 | +12 | 0.7% |
| The Health Plan of West Virginia, Inc. | 34 | +12 | 0.6% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 2,838 beneficiaries in Jefferson County were assigned to 67 Medicare Shared Savings Program ACOs, 54.8% of assignable Original Medicare beneficiaries. Together, roughly 73% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.