Medicare Advantage in Chambers County, Texas
4,412 people in Chambers County, Texas were enrolled in Medicare Advantage in October 2026, 52.5% of 8,411 eligible beneficiaries (−0.2 pts since October 2025). CVS Health Corporation is the largest parent organization with 29% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 2,027 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 444 members here are in plans that terminate or leave the county. MA plans offered go from 34 to 29.
Parent organizations in Chambers County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| CVS Health Corporation | 1,273 | −87 | 29.1% |
| UnitedHealth Group, Inc. | 951 | −62 | 21.7% |
| Health Care Service Corporation | 819 | +43 | 18.7% |
| Humana Inc. | 737 | +195 | 16.8% |
| Centene Corporation | 334 | −36 | 7.6% |
| Devoted Health, Inc. | 144 | +57 | 3.3% |
| Elevance Health, Inc. | 108 | +26 | 2.5% |
| Molina Healthcare, Inc. | 11 | −2 | 0.3% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 631 beneficiaries in Chambers County were assigned to 32 Medicare Shared Savings Program ACOs, 25.8% of assignable Original Medicare beneficiaries. Together, roughly 65% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.