Medicare Advantage in San Augustine County, Texas
1,247 people in San Augustine County, Texas were enrolled in Medicare Advantage in October 2026, 48.6% of 2,564 eligible beneficiaries (+0.8 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 79% of reported enrollment; 4 parent organizations have 11 or more members and the HHI is 6,405 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 167 members here are in plans that terminate or leave the county. MA plans offered go from 18 to 13.
Parent organizations in San Augustine County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 958 | +42 | 78.7% |
| Humana Inc. | 152 | +7 | 12.5% |
| CVS Health Corporation | 86 | −17 | 7.1% |
| Health Care Service Corporation | 21 | −10 | 1.7% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 243 beneficiaries in San Augustine County were assigned to 20 Medicare Shared Savings Program ACOs, 24.6% of assignable Original Medicare beneficiaries. Together, roughly 61% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.