Medicare Advantage in Willacy County, Texas
3,014 people in Willacy County, Texas were enrolled in Medicare Advantage in October 2026, 79.9% of 3,774 eligible beneficiaries (+2.2 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 30% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 2,083 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 429 members here are in plans that terminate or leave the county. MA plans offered go from 51 to 34.
Parent organizations in Willacy County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 904 | −106 | 30.5% |
| Health Care Service Corporation | 731 | −141 | 24.7% |
| Universal Health Services, Inc. | 511 | +327 | 17.3% |
| Humana Inc. | 355 | +158 | 12.0% |
| CVS Health Corporation | 214 | −43 | 7.2% |
| Centene Corporation | 198 | −52 | 6.7% |
| Regency ISNP Holdings LLC | 29 | −2 | 1.0% |
| Molina Healthcare, Inc. | 18 | +1 | 0.6% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 200 beneficiaries in Willacy County were assigned to 13 Medicare Shared Savings Program ACOs, 36.2% of assignable Original Medicare beneficiaries. Together, roughly 87% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.