Medicare Advantage in Arecibo, Puerto Rico
21,004 people in Arecibo, Puerto Rico were enrolled in Medicare Advantage in October 2026, 86.3% of 24,325 eligible beneficiaries (+0.9 pts since October 2025). MHH Healthcare, L.P. is the largest parent organization with 49% of reported enrollment; 3 parent organizations have 11 or more members and the HHI is 3,741 (highly concentrated). HRSA classifies the county as partly rural. 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 Arecibo
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| MHH Healthcare, L.P. | 10,329 | +137 | 49.2% |
| Guidewell Mutual Holding Corporation | 6,120 | +1,138 | 29.2% |
| Elevance Health, Inc. | 4,535 | −568 | 21.6% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 21 beneficiaries in Arecibo were assigned to 10 Medicare Shared Savings Program ACOs, 5.0% of assignable Original Medicare beneficiaries. Together, roughly 87% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.