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Important CMS Information

Customer Service

Customer Service - Indian Health
IVR: (877) 567-9230
Provider Contact Center: (866) 448-5894
TTY: (877) 566-9163
Note: The TTY phone numbers are for hearing impaired callers only.
Hours: 8 a.m. - 4 p.m. (all service areas)
Customer Service - Medicare Part A J4
IVR: (877) 567-9230
Provider Contact Center: (866) 640-9202
TTY: (866) 566-9163
Note: The TTY phone number is for hearing impaired callers only.
Hours: 8 a.m - 4 p.m. (all service areas)
Applies to: Colorado, New Mexico, Oklahoma, Texas
Customer Service - Medicare Part B J4
IVR: (877) 567-9230
Provider Contact Center: (866) 280-6520
TTY: (866) 566-9163
Note: The TTY phone numbers are for hearing impaired callers only.
Hours: 8 a.m. - 4 p.m. (all service areas)
Applies to: Colorado, New Mexico, Oklahoma, Texas
Customer Service - Medicare Part B Virginia
IVR: (866) 502-9049
Provider Contact Center: (866) 717-0010
TTY: (877) 279-2662
Note: The TTY phone numbers are for hearing impaired callers only. Hours: 8 a.m. - 4 p.m. (all service areas)
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