Medicare Advantage in Armstrong County, Texas
200 people in Armstrong County, Texas were enrolled in Medicare Advantage in October 2026, 38.8% of 515 eligible beneficiaries (+3.5 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 57% of reported enrollment; 2 parent organizations have 11 or more members and the HHI is 5,109 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 45 members here are in plans that terminate or leave the county. MA plans offered go from 24 to 15.
Parent organizations in Armstrong County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 97 | +8 | 57.4% |
| Humana Inc. | 72 | +10 | 42.6% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 74 beneficiaries in Armstrong County were assigned to 3 Medicare Shared Savings Program ACOs, 31.0% of assignable Original Medicare beneficiaries. Together, roughly 58% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.