Medicare Advantage in Walton County, Florida
8,890 people in Walton County, Florida were enrolled in Medicare Advantage in October 2026, 42.3% of 21,029 eligible beneficiaries (−0.3 pts since October 2025). Humana Inc. is the largest parent organization with 46% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 3,676 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 3,533 members here are in plans that terminate or leave the county, and Centene Corporation leaves. MA plans offered go from 25 to 21.
Parent organizations in Walton County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 4,085 | +661 | 46.3% |
| UnitedHealth Group, Inc. | 3,364 | −72 | 38.1% |
| Guidewell Mutual Holding Corporation | 635 | −130 | 7.2% |
| CVS Health Corporation | 392 | +1 | 4.4% |
| Health Care Service Corporation | 174 | −40 | 2.0% |
| Elevance Health, Inc. | 93 | +10 | 1.1% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 48 | +3 | 0.5% |
| Centene Corporation | 30 | −99 | 0.3% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 3,468 beneficiaries in Walton County were assigned to 150 Medicare Shared Savings Program ACOs, 41.3% of assignable Original Medicare beneficiaries. Together, roughly 66% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.