Medicare Advantage in Greene County, Mississippi
1,302 people in Greene County, Mississippi were enrolled in Medicare Advantage in October 2026, 48.3% of 2,693 eligible beneficiaries (+0.4 pts since October 2025). Humana Inc. is the largest parent organization with 55% of reported enrollment; 6 parent organizations have 11 or more members and the HHI is 3,634 (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 33 to 37.
Parent organizations in Greene County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 699 | +77 | 54.5% |
| UnitedHealth Group, Inc. | 269 | −129 | 21.0% |
| Health Care Service Corporation | 158 | +67 | 12.3% |
| Centene Corporation | 98 | +3 | 7.6% |
| Devoted Health, Inc. | 30 | new | 2.3% |
| CVS Health Corporation | 28 | −9 | 2.2% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 475 beneficiaries in Greene County were assigned to 14 Medicare Shared Savings Program ACOs, 43.4% of assignable Original Medicare beneficiaries. Together, roughly 71% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.