Medicare Advantage in McCulloch County, Texas
909 people in McCulloch County, Texas were enrolled in Medicare Advantage in October 2026, 39.6% of 2,297 eligible beneficiaries (−0.2 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 45% of reported enrollment; 6 parent organizations have 11 or more members and the HHI is 2,851 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 193 members here are in plans that terminate or leave the county, and Health Care Service Corporation leaves. MA plans offered go from 13 to 7.
Parent organizations in McCulloch County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 400 | −57 | 44.7% |
| Humana Inc. | 203 | +79 | 22.7% |
| Centene Corporation | 124 | −18 | 13.9% |
| Health Care Service Corporation | 90 | −18 | 10.1% |
| Elevance Health, Inc. | 49 | +20 | 5.5% |
| CVS Health Corporation | 28 | +2 | 3.1% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 58 beneficiaries in McCulloch County were assigned to 19 Medicare Shared Savings Program ACOs, 5.8% of assignable Original Medicare beneficiaries. Together, roughly 43% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.