Medicare Advantage in Harris County, Georgia
3,992 people in Harris County, Georgia were enrolled in Medicare Advantage in October 2026, 46.6% of 8,563 eligible beneficiaries (+0.4 pts since October 2025). Humana Inc. is the largest parent organization with 35% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 2,486 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 87 members here are in plans that terminate or leave the county. MA plans offered go from 47 to 44.
Parent organizations in Harris County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 1,383 | +291 | 35.0% |
| UnitedHealth Group, Inc. | 1,169 | −110 | 29.6% |
| Elevance Health, Inc. | 582 | −63 | 14.7% |
| CVS Health Corporation | 473 | +23 | 12.0% |
| Centene Corporation | 183 | −56 | 4.6% |
| Devoted Health, Inc. | 105 | +77 | 2.7% |
| Clover Health Holdings, Inc. | 39 | +21 | 1.0% |
| Mitchell Family Office | 21 | −4 | 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, 1,969 beneficiaries in Harris County were assigned to 35 Medicare Shared Savings Program ACOs, 60.5% of assignable Original Medicare beneficiaries. Together, roughly 79% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.