Medicare Advantage in Sabine County, Texas
1,408 people in Sabine County, Texas were enrolled in Medicare Advantage in October 2026, 38.2% of 3,690 eligible beneficiaries (+0.3 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 67% of reported enrollment; 4 parent organizations have 11 or more members and the HHI is 5,193 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 138 members here are in plans that terminate or leave the county. MA plans offered go from 11 to 10.
Parent organizations in Sabine County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 918 | +20 | 66.9% |
| Humana Inc. | 359 | +2 | 26.1% |
| CVS Health Corporation | 85 | −2 | 6.2% |
| Health Care Service Corporation | 11 | new | 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, 246 beneficiaries in Sabine County were assigned to 31 Medicare Shared Savings Program ACOs, 15.1% of assignable Original Medicare beneficiaries. Together, roughly 47% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.