Medicare Advantage in Orange County, Florida
141,172 people in Orange County, Florida were enrolled in Medicare Advantage in October 2026, 61.9% of 227,902 eligible beneficiaries (+0.1 pts since October 2025). Humana Inc. is the largest parent organization with 44% of reported enrollment; 22 parent organizations have 11 or more members and the HHI is 2,680 (highly concentrated). For 2027, 34,452 members here are in plans that terminate or leave the county, and Health First Shared Services, Inc. leaves. MA plans offered go from 59 to 45.
Parent organizations in Orange County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 61,410 | +5,346 | 43.6% |
| UnitedHealth Group, Inc. | 32,118 | −3,111 | 22.8% |
| Elevance Health, Inc. | 19,173 | +1,624 | 13.6% |
| Centene Corporation | 7,480 | −1,407 | 5.3% |
| CVS Health Corporation | 6,703 | −694 | 4.8% |
| Devoted Health, Inc. | 5,728 | +2,850 | 4.1% |
| Health Care Service Corporation | 3,050 | −262 | 2.2% |
| Guidewell Mutual Holding Corporation | 2,585 | −1,199 | 1.8% |
| Athena Healthcare Holdings, LLC | 914 | +678 | 0.6% |
| Health First Shared Services, Inc. | 629 | +413 | 0.4% |
| Ultimate Healthcare Holdings, LLC | 531 | +350 | 0.4% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 262 | +4 | 0.2% |
| Total Community Options, Inc. | 125 | +67 | under 0.1% |
| DOCTORS HEALTHCARE PLANS, INC. | 53 | new | under 0.1% |
| Highmark Health | 31 | +7 | 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, 16,469 beneficiaries in Orange County were assigned to 300 Medicare Shared Savings Program ACOs, 29.0% of assignable Original Medicare beneficiaries. Together, roughly 73% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.