Medicare Advantage in Adams County, Mississippi
3,389 people in Adams County, Mississippi were enrolled in Medicare Advantage in October 2026, 43.9% of 7,718 eligible beneficiaries (+0.4 pts since October 2025). Humana Inc. is the largest parent organization with 80% of reported enrollment; 4 parent organizations have 11 or more members and the HHI is 6,608 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 228 members here are in plans that terminate or leave the county, and CVS Health Corporation leaves. MA plans offered go from 10 to 19.
Parent organizations in Adams County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 2,684 | +169 | 80.0% |
| UnitedHealth Group, Inc. | 405 | +91 | 12.1% |
| CVS Health Corporation | 247 | −137 | 7.4% |
| Mitchell Family Office | 17 | 0 | 0.5% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 1,619 beneficiaries in Adams County were assigned to 36 Medicare Shared Savings Program ACOs, 48.0% 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.