Medicare Advantage in Mayaguez, Puerto Rico
17,173 people in Mayaguez, Puerto Rico were enrolled in Medicare Advantage in October 2026, 87.5% of 19,619 eligible beneficiaries (+0.2 pts since October 2025). MHH Healthcare, L.P. is the largest parent organization with 68% of reported enrollment; 3 parent organizations have 11 or more members and the HHI is 5,184 (highly concentrated). For 2027, 0 members here are in plans that terminate or leave the county. MA plans offered go from 22 to 23.
Parent organizations in Mayaguez
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| MHH Healthcare, L.P. | 11,605 | +1,131 | 67.6% |
| Elevance Health, Inc. | 3,904 | −825 | 22.8% |
| Guidewell Mutual Holding Corporation | 1,650 | −8 | 9.6% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 23 beneficiaries in Mayaguez were assigned to 11 Medicare Shared Savings Program ACOs, 5.2% of assignable Original Medicare beneficiaries. Together, roughly 88% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.