Medicare Advantage in Jefferson Davis County, Mississippi
1,677 people in Jefferson Davis County, Mississippi were enrolled in Medicare Advantage in October 2026, 58.5% of 2,867 eligible beneficiaries (+0.9 pts since October 2025). Humana Inc. is the largest parent organization with 50% of reported enrollment; 5 parent organizations have 11 or more members and the HHI is 3,302 (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 29 to 32.
Parent organizations in Jefferson Davis County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 829 | +101 | 49.8% |
| UnitedHealth Group, Inc. | 314 | −152 | 18.9% |
| Centene Corporation | 306 | +39 | 18.4% |
| Health Care Service Corporation | 184 | +81 | 11.1% |
| CVS Health Corporation | 31 | −6 | 1.9% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 672 beneficiaries in Jefferson Davis County were assigned to 12 Medicare Shared Savings Program ACOs, 65.8% of assignable Original Medicare beneficiaries. Together, roughly 86% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.