Medicare Advantage in Johnson County, Georgia
1,310 people in Johnson County, Georgia were enrolled in Medicare Advantage in October 2026, 65.5% of 2,001 eligible beneficiaries (−0.1 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 54% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 3,459 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 22 members here are in plans that terminate or leave the county. MA plans offered go from 43 to 41.
Parent organizations in Johnson County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 685 | −42 | 53.5% |
| Humana Inc. | 261 | +42 | 20.4% |
| Elevance Health, Inc. | 130 | −9 | 10.1% |
| CVS Health Corporation | 101 | −36 | 7.9% |
| Centene Corporation | 41 | +11 | 3.2% |
| Devoted Health, Inc. | 30 | new | 2.3% |
| Clover Health Holdings, Inc. | 19 | +7 | 1.5% |
| Mitchell Family Office | 14 | new | 1.1% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 192 beneficiaries in Johnson County were assigned to 13 Medicare Shared Savings Program ACOs, 34.0% 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.