Medicare Advantage in Orange County, Texas
9,657 people in Orange County, Texas were enrolled in Medicare Advantage in October 2026, 54.9% of 17,603 eligible beneficiaries (+0.03 pts since October 2025). Humana Inc. is the largest parent organization with 31% of reported enrollment; 12 parent organizations have 11 or more members and the HHI is 2,209 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 729 members here are in plans that terminate or leave the county, and CHRISTUS Health leaves. MA plans offered go from 40 to 29.
Parent organizations in Orange County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 2,979 | +406 | 31.0% |
| UnitedHealth Group, Inc. | 2,625 | −124 | 27.3% |
| Health Care Service Corporation | 1,477 | −145 | 15.4% |
| Centene Corporation | 1,468 | −185 | 15.3% |
| Devoted Health, Inc. | 357 | +138 | 3.7% |
| CVS Health Corporation | 290 | −8 | 3.0% |
| Elevance Health, Inc. | 277 | +75 | 2.9% |
| Highmark Health | 57 | +3 | 0.6% |
| Molina Healthcare, Inc. | 29 | +1 | 0.3% |
| First Sacramento Capital Funding LLC | 19 | −4 | 0.2% |
| CHRISTUS Health | 16 | −5 | 0.2% |
| Rifkin Managed Care Holding, LLC | 15 | −34 | 0.2% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 1,696 beneficiaries in Orange County were assigned to 40 Medicare Shared Savings Program ACOs, 31.1% of assignable Original Medicare beneficiaries. Together, roughly 69% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.