Medicare Advantage in Washington County, Ohio
7,485 people in Washington County, Ohio were enrolled in Medicare Advantage in October 2026, 46.6% of 16,068 eligible beneficiaries (+0.6 pts since October 2025). Humana Inc. is the largest parent organization with 25% of reported enrollment; 11 parent organizations have 11 or more members and the HHI is 2,111 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 2,501 members here are in plans that terminate or leave the county. MA plans offered go from 42 to 30.
Parent organizations in Washington County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 1,891 | +338 | 25.4% |
| CVS Health Corporation | 1,778 | +284 | 23.9% |
| UnitedHealth Group, Inc. | 1,703 | −92 | 22.9% |
| Elevance Health, Inc. | 1,390 | −288 | 18.7% |
| Trinity Health Corporation | 301 | +27 | 4.0% |
| The Health Plan of West Virginia, Inc. | 170 | +80 | 2.3% |
| Highmark Health | 95 | +1 | 1.3% |
| UMWA Health and Retirement Funds | 42 | −4 | 0.6% |
| CareSource | 38 | +25 | 0.5% |
| Centene Corporation | 24 | −47 | 0.3% |
| The Schroer Group, Inc. | 14 | −14 | 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, 1,163 beneficiaries in Washington County were assigned to 38 Medicare Shared Savings Program ACOs, 17.2% of assignable Original Medicare beneficiaries. Together, roughly 56% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.