Medicare Advantage in Winston County, Mississippi
1,930 people in Winston County, Mississippi were enrolled in Medicare Advantage in October 2026, 39.8% of 4,844 eligible beneficiaries (+1.4 pts since October 2025). Humana Inc. is the largest parent organization with 55% of reported enrollment; 2 parent organizations have 11 or more members and the HHI is 5,047 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 0 members here are in plans that terminate or leave the county. MA plans offered go from 15 to 19.
Parent organizations in Winston County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 1,043 | +65 | 54.8% |
| UnitedHealth Group, Inc. | 859 | +63 | 45.2% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 326 beneficiaries in Winston County were assigned to 14 Medicare Shared Savings Program ACOs, 13.3% of assignable Original Medicare beneficiaries. Together, roughly 48% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.