Medicare Advantage in La Paz County, Arizona
2,979 people in La Paz County, Arizona were enrolled in Medicare Advantage in October 2026, 45.5% of 6,543 eligible beneficiaries (+0.8 pts since October 2025). Humana Inc. is the largest parent organization with 36% of reported enrollment; 7 parent organizations have 11 or more members and the HHI is 2,740 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 155 members here are in plans that terminate or leave the county. MA plans offered go from 15 to 15.
Parent organizations in La Paz County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 1,037 | +326 | 35.6% |
| UnitedHealth Group, Inc. | 961 | −236 | 33.0% |
| Centene Corporation | 525 | −50 | 18.0% |
| Devoted Health, Inc. | 158 | +29 | 5.4% |
| Banner Health | 147 | −8 | 5.0% |
| CVS Health Corporation | 54 | +3 | 1.9% |
| Elevance Health, Inc. | 31 | +3 | 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, 386 beneficiaries in La Paz County were assigned to 61 Medicare Shared Savings Program ACOs, 17.3% of assignable Original Medicare beneficiaries. Together, roughly 55% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.