Medicare Advantage in Madison County, Ohio
5,685 people in Madison County, Ohio were enrolled in Medicare Advantage in October 2026, 59.6% of 9,539 eligible beneficiaries (−0.4 pts since October 2025). CVS Health Corporation is the largest parent organization with 26% of reported enrollment; 11 parent organizations have 11 or more members and the HHI is 1,824 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 468 members here are in plans that terminate or leave the county. MA plans offered go from 58 to 53.
Parent organizations in Madison County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| CVS Health Corporation | 1,456 | +151 | 25.8% |
| UnitedHealth Group, Inc. | 1,178 | +96 | 20.9% |
| Humana Inc. | 1,121 | +80 | 19.9% |
| Trinity Health Corporation | 859 | +110 | 15.2% |
| Elevance Health, Inc. | 455 | −251 | 8.1% |
| MEDICAL MUTUAL OF OHIO | 234 | −79 | 4.2% |
| Molina Healthcare, Inc. | 148 | +25 | 2.6% |
| Devoted Health, Inc. | 103 | +42 | 1.8% |
| CareSource | 43 | +17 | 0.8% |
| Centene Corporation | 30 | −2 | 0.5% |
| The Health Plan of West Virginia, Inc. | 11 | 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, 423 beneficiaries in Madison County were assigned to 26 Medicare Shared Savings Program ACOs, 15.7% of assignable Original Medicare beneficiaries. Together, roughly 66% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.