Medicare Advantage in Pinal County, Arizona
60,804 people in Pinal County, Arizona were enrolled in Medicare Advantage in October 2026, 55.4% of 109,787 eligible beneficiaries (+0.8 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 36% of reported enrollment; 22 parent organizations have 11 or more members and the HHI is 2,114 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 1,228 members here are in plans that terminate or leave the county. MA plans offered go from 46 to 47.
Parent organizations in Pinal County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 22,105 | −2,448 | 36.5% |
| Humana Inc. | 13,406 | +3,263 | 22.2% |
| Health Care Service Corporation | 7,530 | +599 | 12.4% |
| Blue Cross Blue Shield of Arizona | 4,783 | +1,187 | 7.9% |
| CVS Health Corporation | 3,637 | +225 | 6.0% |
| Centene Corporation | 2,398 | −130 | 4.0% |
| Devoted Health, Inc. | 1,475 | +516 | 2.4% |
| SCAN Group | 1,398 | +1,139 | 2.3% |
| Gold Kidney Health Plan | 1,225 | +637 | 2.0% |
| Banner Health | 772 | −1,940 | 1.3% |
| Mercy Care | 499 | +38 | 0.8% |
| Elevance Health, Inc. | 377 | −36 | 0.6% |
| Eternal Health of Delaware, Inc. | 355 | new | 0.6% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 289 | +22 | 0.5% |
| California Physicians' Service | 70 | −2 | 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, 11,827 beneficiaries in Pinal County were assigned to 220 Medicare Shared Savings Program ACOs, 35.4% 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.