Medicare Advantage in Houston County, Texas
3,000 people in Houston County, Texas were enrolled in Medicare Advantage in October 2026, 51.4% of 5,835 eligible beneficiaries (+1.0 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 82% of reported enrollment; 4 parent organizations have 11 or more members and the HHI is 6,823 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 461 members here are in plans that terminate or leave the county, and Health Care Service Corporation leaves. MA plans offered go from 17 to 15.
Parent organizations in Houston County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 2,424 | +124 | 81.9% |
| Humana Inc. | 226 | +31 | 7.6% |
| CVS Health Corporation | 213 | −19 | 7.2% |
| Health Care Service Corporation | 98 | −9 | 3.3% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 516 beneficiaries in Houston County were assigned to 31 Medicare Shared Savings Program ACOs, 24.8% of assignable Original Medicare beneficiaries. Together, roughly 63% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.