Joint Ventures
Information to come if necessary
Contact Information
MassHealth Call Center: 800-841-2900
or (TTY) 800-497-4648 Monday-Friday 9:00 a.m. – 5:00 p.m. mass.gov/masshealth
Medicare ACO REACH Information
Call: 1-800-MEDICARE (1-800-633-4227) or TTY 1-877-486-2048
24 hours, 7 days a week
(except some federal holidays)
Still Have Questions about C3?
Our Member Advocates are here to help!
C3 Info Line: 866-67-MY-ACO (866-676-9226),
711 for individuals with a hearing or speech disability
Monday-Friday 9:00 am – 5:00 pm
