There are two One Care plans, Commonwealth Care Alliance and Tufts Health Unify. Click on the individual plan links to learn more about each one.
Commonwealth Care Alliance
Customer Service: 7 days a week, from 8 a.m. to 8 p.m.
MassRelay (TRS): 711 (for people who are deaf, hard of hearing, or speech disabled)
Commonwealth Care Alliance Available in the following counties: Barnstable, Berkshire, Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex, Norfolk, Plymouth, Suffolk and Worcester.