Medicare Advantage in Leon County, Florida
32,581 people in Leon County, Florida were enrolled in Medicare Advantage in October 2026, 60.2% of 54,088 eligible beneficiaries (−0.4 pts since October 2025). Guidewell Mutual Holding Corporation is the largest parent organization with 61% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 4,950 (highly concentrated). For 2027, 2,673 members here are in plans that terminate or leave the county, and Centene Corporation leaves. MA plans offered go from 14 to 13.
Parent organizations in Leon County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Guidewell Mutual Holding Corporation | 19,916 | +1,065 | 61.3% |
| UnitedHealth Group, Inc. | 11,182 | +718 | 34.4% |
| Humana Inc. | 626 | +97 | 1.9% |
| Centene Corporation | 422 | −1,452 | 1.3% |
| CVS Health Corporation | 173 | +7 | 0.5% |
| Elevance Health, Inc. | 102 | +7 | 0.3% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 50 | −6 | 0.2% |
| Health Care Service Corporation | 11 | new | under 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, 2,130 beneficiaries in Leon County were assigned to 123 Medicare Shared Savings Program ACOs, 16.9% of assignable Original Medicare beneficiaries. Together, roughly 67% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.