How is Medicare Advantage developing in Alachua County, Florida?

Data through Plan year 2026, with 2023–2026 penetration history · Updated May 1, 2026 static extract

Alachua County's MA penetration is 54.2% — below the 57.8% national share by 3.6 points, with 0.098M MA enrollees of 0.18M Medicare beneficiaries as of Plan year 2026, with 2023–2026 penetration history. It ranks 10 of 10 Florida counties by penetration.

54.2%
Plan year 2026, with 2023–2026 penetration history
+0.8 pts
YoY velocity
prior year → Plan year 2026, with 2023–2026 penetration history
3
Carriers competing
Plan year 2026, with 2023–2026 penetration history
14%
D-SNP share of MA
Plan year 2026, with 2023–2026 penetration history

Penetration trajectory, 2023–2026

0%22.5%45%67.5%90%2023202420252026MA % of Medicare

MA share of all Medicare beneficiaries in the county, plan years 2023–2026. Plan year 2026, with 2023–2026 penetration history.

Market structure in Alachua County

Top carrierUHC
Carriers competing3
MA enrollees0.098M
Total Medicare beneficiaries0.18M
D-SNP share of MA14%
Market typeSwitcher (50%+ penetration)

County carrier and D-SNP figures are the CPSC county extract (Plan year 2026, with 2023–2026 penetration history). Carrier-level enrollment and stars are tracked at the state level.

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So what / Now what

Alachua County is a switcher market at 54.2% penetration — expansion means winning members from incumbent MA plans on benefits, network, and brand.

Neighboring Florida counties

Provenance — County-level MA market snapshot (76 tracked counties)
Source file
CMS MA Enrollment by State/County/Plan (CPSC monthly files)
Vintage
Plan year 2026, with 2023–2026 penetration history
Last updated
May 1, 2026
Refresh cadence
Monthly (pipeline pending; currently a curated extract)
Method
Penetration, D-SNP share, carrier count and top carrier per county compiled from CPSC files for 76 high-signal counties.
Known limitations
Covers 76 tracked counties, not all ~3,100. Velocity = simple YoY penetration point change.