Medicare Advantage in Gilchrist County, Florida
2,467 people in Gilchrist County, Florida were enrolled in Medicare Advantage in October 2026, 50.7% of 4,864 eligible beneficiaries (+0.2 pts since October 2025). Humana Inc. is the largest parent organization with 52% of reported enrollment; 5 parent organizations have 11 or more members and the HHI is 4,625 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 1,000 members here are in plans that terminate or leave the county. MA plans offered go from 15 to 13.
Parent organizations in Gilchrist County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 1,270 | +141 | 52.0% |
| UnitedHealth Group, Inc. | 1,066 | −59 | 43.7% |
| CVS Health Corporation | 45 | −5 | 1.8% |
| Guidewell Mutual Holding Corporation | 42 | +2 | 1.7% |
| Centene Corporation | 17 | −25 | 0.7% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 875 beneficiaries in Gilchrist County were assigned to 25 Medicare Shared Savings Program ACOs, 48.2% of assignable Original Medicare beneficiaries. Together, roughly 74% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.