Medicare Advantage in Bibb County, Georgia
20,882 people in Bibb County, Georgia were enrolled in Medicare Advantage in October 2026, 62.7% of 33,305 eligible beneficiaries (+0.6 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 44% of reported enrollment; 9 parent organizations have 11 or more members and the HHI is 3,033 (highly concentrated). For 2027, 377 members here are in plans that terminate or leave the county, and CareSource leaves. MA plans offered go from 45 to 42.
Parent organizations in Bibb County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 9,100 | −216 | 43.7% |
| Humana Inc. | 6,082 | +1,029 | 29.2% |
| CVS Health Corporation | 3,006 | −44 | 14.4% |
| Elevance Health, Inc. | 1,530 | −269 | 7.3% |
| Clover Health Holdings, Inc. | 381 | +159 | 1.8% |
| UNICO Services, Inc. | 282 | +113 | 1.4% |
| Centene Corporation | 277 | −76 | 1.3% |
| Mitchell Family Office | 136 | +18 | 0.7% |
| CareSource | 28 | new | 0.1% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 4,101 beneficiaries in Bibb County were assigned to 43 Medicare Shared Savings Program ACOs, 43.0% 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.