Medicare Advantage in Cameron County, Texas
55,641 people in Cameron County, Texas were enrolled in Medicare Advantage in October 2026, 75.1% of 74,082 eligible beneficiaries (+1.2 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 35% of reported enrollment; 10 parent organizations have 11 or more members and the HHI is 2,568 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 9,955 members here are in plans that terminate or leave the county. MA plans offered go from 47 to 34.
Parent organizations in Cameron County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 19,261 | −1,308 | 34.7% |
| Health Care Service Corporation | 18,498 | −2,078 | 33.3% |
| Humana Inc. | 6,496 | +2,612 | 11.7% |
| Universal Health Services, Inc. | 4,176 | +3,162 | 7.5% |
| CVS Health Corporation | 3,117 | +299 | 5.6% |
| Centene Corporation | 3,073 | −546 | 5.5% |
| Molina Healthcare, Inc. | 357 | +24 | 0.6% |
| Elevance Health, Inc. | 275 | +91 | 0.5% |
| Regency ISNP Holdings LLC | 231 | +35 | 0.4% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 56 | −1 | 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, 2,855 beneficiaries in Cameron County were assigned to 122 Medicare Shared Savings Program ACOs, 24.3% of assignable Original Medicare beneficiaries. Together, roughly 81% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.