Medicare Advantage in Harrison County, Ohio
2,315 people in Harrison County, Ohio were enrolled in Medicare Advantage in October 2026, 58.3% of 3,968 eligible beneficiaries (+0.5 pts since October 2025). CVS Health Corporation is the largest parent organization with 35% of reported enrollment; 11 parent organizations have 11 or more members and the HHI is 2,076 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 270 members here are in plans that terminate or leave the county. MA plans offered go from 61 to 56.
Parent organizations in Harrison County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| CVS Health Corporation | 800 | +77 | 35.0% |
| UnitedHealth Group, Inc. | 430 | −17 | 18.8% |
| Elevance Health, Inc. | 346 | −26 | 15.1% |
| Humana Inc. | 323 | +19 | 14.1% |
| UMWA Health and Retirement Funds | 148 | −9 | 6.5% |
| Aultman Health Foundation | 85 | +14 | 3.7% |
| The Health Plan of West Virginia, Inc. | 55 | +3 | 2.4% |
| Highmark Health | 35 | +1 | 1.5% |
| CareSource | 29 | +14 | 1.3% |
| Centene Corporation | 23 | −4 | 1.0% |
| Devoted Health, Inc. | 11 | new | 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, 432 beneficiaries in Harrison County were assigned to 16 Medicare Shared Savings Program ACOs, 32.4% of assignable Original Medicare beneficiaries. Together, roughly 72% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.