Medicare Advantage in Johnson County, Texas
22,961 people in Johnson County, Texas were enrolled in Medicare Advantage in October 2026, 60.5% of 37,931 eligible beneficiaries (−0.1 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 66% of reported enrollment; 9 parent organizations have 11 or more members and the HHI is 4,828 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 2,135 members here are in plans that terminate or leave the county. MA plans offered go from 46 to 38.
Parent organizations in Johnson County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 15,093 | −97 | 66.0% |
| Humana Inc. | 4,648 | +1,074 | 20.3% |
| Health Care Service Corporation | 1,565 | −126 | 6.8% |
| CVS Health Corporation | 856 | +19 | 3.7% |
| Elevance Health, Inc. | 292 | +88 | 1.3% |
| Centene Corporation | 268 | −160 | 1.2% |
| Consolidated Assoc of Railroad Employees HC | 63 | −8 | 0.3% |
| Baylor Scott & White Health | 49 | new | 0.2% |
| Molina Healthcare, Inc. | 47 | +15 | 0.2% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 2,606 beneficiaries in Johnson County were assigned to 76 Medicare Shared Savings Program ACOs, 26.5% of assignable Original Medicare beneficiaries. Together, roughly 71% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.