Medicare Advantage in Alachua County, Florida
22,253 people in Alachua County, Florida were enrolled in Medicare Advantage in October 2026, 41.6% of 53,458 eligible beneficiaries (−0.2 pts since October 2025). Humana Inc. is the largest parent organization with 56% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 4,191 (highly concentrated). For 2027, 8,188 members here are in plans that terminate or leave the county, and CVS Health Corporation, Centene Corporation leave. MA plans offered go from 24 to 16.
Parent organizations in Alachua County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 12,290 | +2,170 | 55.5% |
| UnitedHealth Group, Inc. | 7,169 | −985 | 32.4% |
| CVS Health Corporation | 1,436 | +123 | 6.5% |
| Guidewell Mutual Holding Corporation | 887 | −389 | 4.0% |
| Centene Corporation | 234 | −509 | 1.1% |
| Elevance Health, Inc. | 57 | +2 | 0.3% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 44 | −3 | 0.2% |
| Health Care Service Corporation | 19 | +1 | 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, 6,732 beneficiaries in Alachua County were assigned to 134 Medicare Shared Savings Program ACOs, 30.5% of assignable Original Medicare beneficiaries. Together, roughly 59% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.