Medicare Advantage in Union County, Ohio
5,962 people in Union County, Ohio were enrolled in Medicare Advantage in October 2026, 50.8% of 11,727 eligible beneficiaries (−1.0 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 2,181 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 295 members here are in plans that terminate or leave the county. MA plans offered go from 54 to 50.
Parent organizations in Union County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| CVS Health Corporation | 2,059 | +259 | 34.8% |
| Humana Inc. | 1,505 | +239 | 25.4% |
| UnitedHealth Group, Inc. | 738 | +29 | 12.5% |
| Elevance Health, Inc. | 593 | −357 | 10.0% |
| Trinity Health Corporation | 375 | +41 | 6.3% |
| MEDICAL MUTUAL OF OHIO | 255 | −104 | 4.3% |
| Molina Healthcare, Inc. | 146 | +10 | 2.5% |
| Devoted Health, Inc. | 108 | +45 | 1.8% |
| Highmark Health | 76 | −1 | 1.3% |
| CareSource | 48 | new | 0.8% |
| Centene Corporation | 19 | −9 | 0.3% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 467 beneficiaries in Union County were assigned to 25 Medicare Shared Savings Program ACOs, 12.0% of assignable Original Medicare beneficiaries. Together, roughly 57% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.