Medicare Advantage in Sumter County, Georgia
4,358 people in Sumter County, Georgia were enrolled in Medicare Advantage in October 2026, 66.2% of 6,580 eligible beneficiaries (−0.4 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 37% of reported enrollment; 6 parent organizations have 11 or more members and the HHI is 2,442 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 20 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 |
|---|---|---|---|
| UnitedHealth Group, Inc. | 1,608 | −106 | 37.1% |
| CVS Health Corporation | 954 | +110 | 22.0% |
| Humana Inc. | 799 | −119 | 18.4% |
| Clover Health Holdings, Inc. | 579 | +200 | 13.3% |
| Elevance Health, Inc. | 359 | −36 | 8.3% |
| Mitchell Family Office | 41 | −25 | 0.9% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 1,170 beneficiaries in Sumter County were assigned to 23 Medicare Shared Savings Program ACOs, 72.6% of assignable Original Medicare beneficiaries. Together, roughly 91% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.