Medicare Advantage in Washington County, Texas
4,327 people in Washington County, Texas were enrolled in Medicare Advantage in October 2026, 40.8% of 10,603 eligible beneficiaries (+0.03 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 44% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 2,780 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 432 members here are in plans that terminate or leave the county, and Health Care Service Corporation leaves. MA plans offered go from 29 to 27.
Parent organizations in Washington County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 1,866 | −24 | 43.8% |
| Baylor Scott & White Health | 988 | +196 | 23.2% |
| CVS Health Corporation | 579 | +8 | 13.6% |
| Humana Inc. | 468 | −47 | 11.0% |
| Health Care Service Corporation | 146 | −129 | 3.4% |
| Devoted Health, Inc. | 96 | new | 2.3% |
| Centene Corporation | 86 | +13 | 2.0% |
| Regency ISNP Holdings LLC | 34 | +3 | 0.8% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 3,346 beneficiaries in Washington County were assigned to 42 Medicare Shared Savings Program ACOs, 70.5% of assignable Original Medicare beneficiaries. Together, roughly 83% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.