Medicare Advantage in Sumter County, Alabama
2,177 people in Sumter County, Alabama were enrolled in Medicare Advantage in October 2026, 67.2% of 3,239 eligible beneficiaries (+2.3 pts since October 2025). Humana Inc. is the largest parent organization with 71% of reported enrollment; 5 parent organizations have 11 or more members and the HHI is 5,493 (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 22 to 23.
Parent organizations in Sumter County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 1,519 | +386 | 70.8% |
| UnitedHealth Group, Inc. | 452 | −308 | 21.1% |
| BlueCross BlueShield of Alabama | 129 | −12 | 6.0% |
| Associated Care Ventures, Inc. | 35 | +1 | 1.6% |
| Elevance Health, Inc. | 11 | 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, 226 beneficiaries in Sumter County were assigned to 17 Medicare Shared Savings Program ACOs, 30.5% 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.