Medicare Advantage in Brown County, Ohio
6,723 people in Brown County, Ohio were enrolled in Medicare Advantage in October 2026, 61.9% of 10,867 eligible beneficiaries (+0.5 pts since October 2025). Humana Inc. is the largest parent organization with 23% of reported enrollment; 12 parent organizations have 11 or more members and the HHI is 1,777 (moderately concentrated). HRSA classifies the county as fully rural. For 2027, 877 members here are in plans that terminate or leave the county. MA plans offered go from 62 to 56.
Parent organizations in Brown County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 1,553 | +304 | 23.2% |
| UnitedHealth Group, Inc. | 1,436 | +33 | 21.4% |
| Elevance Health, Inc. | 1,272 | −585 | 19.0% |
| CVS Health Corporation | 1,271 | +230 | 18.9% |
| Trinity Health Corporation | 401 | +123 | 6.0% |
| Health Care Service Corporation | 253 | +185 | 3.8% |
| Devoted Health, Inc. | 182 | +69 | 2.7% |
| MEDICAL MUTUAL OF OHIO | 132 | −164 | 2.0% |
| CareSource | 71 | +51 | 1.1% |
| Centene Corporation | 60 | −24 | 0.9% |
| The Schroer Group, Inc. | 47 | +10 | 0.7% |
| Molina Healthcare, Inc. | 30 | +19 | 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, 1,117 beneficiaries in Brown County were assigned to 21 Medicare Shared Savings Program ACOs, 39.7% of assignable Original Medicare beneficiaries. Together, roughly 77% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.