Medicare Advantage in Shelby County, Ohio
4,088 people in Shelby County, Ohio were enrolled in Medicare Advantage in October 2026, 38.2% of 10,698 eligible beneficiaries (+0.1 pts since October 2025). CVS Health Corporation is the largest parent organization with 30% of reported enrollment; 11 parent organizations have 11 or more members and the HHI is 2,213 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 472 members here are in plans that terminate or leave the county. MA plans offered go from 56 to 49.
Parent organizations in Shelby County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| CVS Health Corporation | 1,209 | +343 | 29.9% |
| UnitedHealth Group, Inc. | 938 | +275 | 23.2% |
| Elevance Health, Inc. | 864 | −544 | 21.4% |
| Humana Inc. | 711 | −27 | 17.6% |
| Health Care Service Corporation | 93 | +41 | 2.3% |
| Devoted Health, Inc. | 88 | +24 | 2.2% |
| CareSource | 58 | +46 | 1.4% |
| Trinity Health Corporation | 31 | +17 | 0.8% |
| Centene Corporation | 19 | −10 | 0.5% |
| Perennial Consortium, LLC | 19 | new | 0.5% |
| Molina Healthcare, Inc. | 12 | new | 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, 511 beneficiaries in Shelby County were assigned to 27 Medicare Shared Savings Program ACOs, 10.6% of assignable Original Medicare beneficiaries. Together, roughly 45% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.