Medicare Advantage in Summit County, Ohio
81,593 people in Summit County, Ohio were enrolled in Medicare Advantage in October 2026, 63.0% of 129,446 eligible beneficiaries (−1.2 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 23% of reported enrollment; 21 parent organizations have 11 or more members and the HHI is 1,483 (moderately concentrated). For 2027, 10,868 members here are in plans that terminate or leave the county. MA plans offered go from 75 to 68.
Parent organizations in Summit County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 18,736 | −2,529 | 23.0% |
| CVS Health Corporation | 13,919 | +1,516 | 17.1% |
| General Catalyst Group Management Holdings LP | 13,580 | +1,761 | 16.7% |
| Elevance Health, Inc. | 10,832 | −4,025 | 13.3% |
| Humana Inc. | 9,289 | +825 | 11.4% |
| MEDICAL MUTUAL OF OHIO | 5,170 | +222 | 6.3% |
| CareSource | 3,677 | +1,613 | 4.5% |
| Devoted Health, Inc. | 2,884 | +1,203 | 3.5% |
| Highmark Health | 831 | −36 | 1.0% |
| Health Care Service Corporation | 517 | −50 | 0.6% |
| Zing Health Consolidator, Inc | 450 | +274 | 0.6% |
| The Health Plan of West Virginia, Inc. | 304 | −4 | 0.4% |
| Centene Corporation | 299 | −176 | 0.4% |
| SNP Holdings, LLC | 281 | +13 | 0.3% |
| The Schroer Group, Inc. | 180 | +28 | 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, 16,438 beneficiaries in Summit County were assigned to 120 Medicare Shared Savings Program ACOs, 51.1% of assignable Original Medicare beneficiaries. Together, roughly 82% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.