Medicare Advantage in Osceola County, Florida
56,812 people in Osceola County, Florida were enrolled in Medicare Advantage in October 2026, 72.2% of 78,703 eligible beneficiaries (+0.4 pts since October 2025). Humana Inc. is the largest parent organization with 41% of reported enrollment; 19 parent organizations have 11 or more members and the HHI is 2,543 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 12,984 members here are in plans that terminate or leave the county, and Health First Shared Services, Inc. leaves. MA plans offered go from 58 to 45.
Parent organizations in Osceola County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 23,122 | +1,931 | 40.8% |
| Elevance Health, Inc. | 12,427 | +1,137 | 21.9% |
| UnitedHealth Group, Inc. | 9,875 | −1,119 | 17.4% |
| Devoted Health, Inc. | 3,320 | +1,559 | 5.9% |
| Centene Corporation | 3,293 | −593 | 5.8% |
| CVS Health Corporation | 2,468 | −247 | 4.4% |
| Health Care Service Corporation | 696 | −61 | 1.2% |
| Athena Healthcare Holdings, LLC | 405 | +362 | 0.7% |
| Guidewell Mutual Holding Corporation | 302 | −564 | 0.5% |
| Ultimate Healthcare Holdings, LLC | 271 | +166 | 0.5% |
| Health First Shared Services, Inc. | 146 | new | 0.3% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 142 | −8 | 0.3% |
| Gold Kidney Health Plan | 37 | +25 | under 0.1% |
| Longevity Health Founders, LLC | 32 | −39 | under 0.1% |
| Total Community Options, Inc. | 23 | 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, 3,166 beneficiaries in Osceola County were assigned to 193 Medicare Shared Savings Program ACOs, 23.4% of assignable Original Medicare beneficiaries. Together, roughly 79% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.