Medicare Advantage in Shackelford County, Texas
325 people in Shackelford County, Texas were enrolled in Medicare Advantage in October 2026, 38.1% of 854 eligible beneficiaries (+1.7 pts since October 2025). Humana Inc. is the largest parent organization with 47% of reported enrollment; 4 parent organizations have 11 or more members and the HHI is 3,772 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 106 members here are in plans that terminate or leave the county. MA plans offered go from 20 to 12.
Parent organizations in Shackelford County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 144 | +38 | 46.9% |
| UnitedHealth Group, Inc. | 117 | −19 | 38.1% |
| Centene Corporation | 29 | +2 | 9.4% |
| CVS Health Corporation | 17 | 0 | 5.5% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 45 beneficiaries in Shackelford County were assigned to 14 Medicare Shared Savings Program ACOs, 10.7% of assignable Original Medicare beneficiaries. Together, roughly 45% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.