Medicare Advantage in Brooks County, Texas
1,118 people in Brooks County, Texas were enrolled in Medicare Advantage in October 2026, 71.2% of 1,570 eligible beneficiaries (+1.8 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 71% of reported enrollment; 6 parent organizations have 11 or more members and the HHI is 5,273 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 59 members here are in plans that terminate or leave the county. MA plans offered go from 24 to 17.
Parent organizations in Brooks County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 778 | +37 | 71.2% |
| CVS Health Corporation | 90 | −20 | 8.2% |
| Centene Corporation | 78 | −30 | 7.1% |
| Universal Health Services, Inc. | 72 | +52 | 6.6% |
| Humana Inc. | 63 | −25 | 5.8% |
| Elevance Health, Inc. | 11 | new | 1.0% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 15 beneficiaries in Brooks County were assigned to 7 Medicare Shared Savings Program ACOs, 4.8% of assignable Original Medicare beneficiaries. Together, roughly 73% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.