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How to enroll in UnitedHealthcare Connected® for One Care (Medicare-Medicaid Plan)

Am I eligible

Our UnitedHealthcare Connected® for One Care is for disabled adults ages 21-64 at the time of enrollment who are eligible for both Medicare and MassHealth. The plan offers members a customized care plan and a single point of contact for all Medicare and MassHealth services.

How to enroll in One Care

MassHealth has open enrollment all year. 

There are three ways to enroll: Online, paper application, Customer Service

Online:

Enroll online now by clicking here: Mass.gov/one-care

By mail:

Fill out the paper application: One Care Enrollment Decision Form (Also available in Spanish: Formulario de Decisión Para la Inscripción en One Care.)

Call:

Call the MassHealth Customer Service Center (Monday –Friday, 8:00 a.m. – 5:00 p.m.) at 1-800-841-2900 or TTY: 711 (for people who are deaf, hard of hearing, or speech disabled).

How to choose UnitedHealthcare

You can choose to join UnitedHealthcare Connected when you enroll in a One Care plan. UnitedHealthcare is available in these counties: Bristol, Essex*, Franklin, Hampden, Hampshire, Middlesex, Norfolk, Plymouth, Suffolk and Worcester.

You’ll keep your Medicare and MassHealth benefits if you join a One Care plan.

Need help?

Our Member Services team is available to answer your questions.

  • Call 1-866-633-4454, TTY 711
  • 8 a.m.–8 p,m., local time, 7 days a week

*Note that One Care is available in Essex county in the following zip codes: 01810, 01812, 01830, 01831, 01832, 01833, 01834, 01835, 01840, 01841, 01842, 01843, 01844, 01845, 01885, 01899,  01901, 01902, 01903, 01904, 01905, 01906, 01907, 01908, 01910, 01922, 01923, 01937, 01940, 01945, 01947, 01949, 01960, 01961, 01969, 01970, 01971, 01985, 05501, 05544