TRYNYTYhealth:enablement
MA Enrollment Explorer / Puerto Rico / Toa Baja

Medicare Advantage in Toa Baja, Puerto Rico

15,206 people in Toa Baja, Puerto Rico were enrolled in Medicare Advantage in October 2026, 87.8% of 17,313 eligible beneficiaries (+0.9 pts since October 2025). MHH Healthcare, L.P. is the largest parent organization with 54% of reported enrollment; 3 parent organizations have 11 or more members and the HHI is 4,090 (highly concentrated). For 2027, 0 members here are in plans that terminate or leave the county. MA plans offered go from 21 to 22.

87.8%MA penetration, October 2026
15,206MA enrollees
54%leading parent's share
4.8%MSSP ACO share of Original Medicare, PY 2024
Open the county on the market mapMedicare Advantage in Puerto Rico

Parent organizations in Toa Baja

Parent organizationMembersChange since October 2025Share
MHH Healthcare, L.P.8,134+90353.6%
Elevance Health, Inc.4,811−43931.7%
Guidewell Mutual Holding Corporation2,241+15614.8%

CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.

Value-based care alongside MA

In PY 2024, 19 beneficiaries in Toa Baja were assigned to 9 Medicare Shared Savings Program ACOs, 4.8% 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.