Medicare Advantage in Shelby County, Texas
2,876 people in Shelby County, Texas were enrolled in Medicare Advantage in October 2026, 53.1% of 5,420 eligible beneficiaries (+0.3 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 72% of reported enrollment; 4 parent organizations have 11 or more members and the HHI is 5,747 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 483 members here are in plans that terminate or leave the county, and Health Care Service Corporation leaves. MA plans offered go from 19 to 14.
Parent organizations in Shelby County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 2,035 | +72 | 71.5% |
| Humana Inc. | 715 | −8 | 25.1% |
| Health Care Service Corporation | 67 | +3 | 2.4% |
| CVS Health Corporation | 30 | −2 | 1.1% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 316 beneficiaries in Shelby County were assigned to 23 Medicare Shared Savings Program ACOs, 16.4% of assignable Original Medicare beneficiaries. Together, roughly 61% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.