Medicare Advantage in Parker County, Texas
15,600 people in Parker County, Texas were enrolled in Medicare Advantage in October 2026, 44.5% of 35,094 eligible beneficiaries (−0.4 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 61% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 4,255 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 2,066 members here are in plans that terminate or leave the county. MA plans offered go from 39 to 34.
Parent organizations in Parker County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 9,438 | +29 | 60.8% |
| Humana Inc. | 3,274 | +907 | 21.1% |
| Health Care Service Corporation | 1,189 | −443 | 7.7% |
| CVS Health Corporation | 1,156 | +44 | 7.4% |
| Elevance Health, Inc. | 334 | +99 | 2.2% |
| Centene Corporation | 105 | −78 | 0.7% |
| Molina Healthcare, Inc. | 24 | +8 | 0.2% |
| California Physicians' Service | 14 | +2 | under 0.1% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 3,091 beneficiaries in Parker County were assigned to 90 Medicare Shared Savings Program ACOs, 24.0% of assignable Original Medicare beneficiaries. Together, roughly 58% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.