Medicare Advantage in Darke County, Ohio
5,511 people in Darke County, Ohio were enrolled in Medicare Advantage in October 2026, 42.9% of 12,851 eligible beneficiaries (+0.4 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 34% of reported enrollment; 12 parent organizations have 11 or more members and the HHI is 2,347 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 542 members here are in plans that terminate or leave the county. MA plans offered go from 55 to 49.
Parent organizations in Darke County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 1,830 | +658 | 33.5% |
| Elevance Health, Inc. | 1,353 | −927 | 24.7% |
| CVS Health Corporation | 1,099 | +222 | 20.1% |
| Humana Inc. | 780 | +63 | 14.3% |
| Devoted Health, Inc. | 106 | +47 | 1.9% |
| Health Care Service Corporation | 66 | +39 | 1.2% |
| Trinity Health Corporation | 64 | +49 | 1.2% |
| CareSource | 52 | +39 | 1.0% |
| Centene Corporation | 39 | −25 | 0.7% |
| The Schroer Group, Inc. | 33 | −7 | 0.6% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 26 | −1 | 0.5% |
| Perennial Consortium, LLC | 22 | new | 0.4% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 3,804 beneficiaries in Darke County were assigned to 30 Medicare Shared Savings Program ACOs, 64.9% of assignable Original Medicare beneficiaries. Together, roughly 80% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.