Medicare Advantage in Polk County, Georgia
5,731 people in Polk County, Georgia were enrolled in Medicare Advantage in October 2026, 61.0% of 9,391 eligible beneficiaries (−0.3 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 34% of reported enrollment; 7 parent organizations have 11 or more members and the HHI is 2,340 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 31 members here are in plans that terminate or leave the county. MA plans offered go from 41 to 38.
Parent organizations in Polk County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 1,960 | +43 | 34.5% |
| Humana Inc. | 1,529 | −87 | 26.9% |
| Health Care Service Corporation | 741 | +140 | 13.0% |
| CVS Health Corporation | 666 | −84 | 11.7% |
| Elevance Health, Inc. | 599 | −9 | 10.5% |
| Devoted Health, Inc. | 134 | new | 2.4% |
| Clover Health Holdings, Inc. | 52 | +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, 285 beneficiaries in Polk County were assigned to 25 Medicare Shared Savings Program ACOs, 9.7% of assignable Original Medicare beneficiaries. Together, roughly 65% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.