HMSA Customer Service representatives are available Monday through Friday,
8 a.m. to 4 p.m., unless otherwise noted. Representatives for Medicare Programs
are available seven days a week, 8 a.m. to 8 p.m, including holidays.
Representatives for the QUEST plan are available 24 hours a day.
By Phone
- Member Inquiries: 1 (800) 776-4672 (toll-free)
- HMSA’s Online Care support: (808) 948-6013 on Oahu
- HMSA’s Online Care support: 1 (866) 939-6013 (toll-free)
- Text Telephone (TTY): (808) 948-6222 on Oahu or 711
- Text Telephone (TTY): 1 (877) 298-4672 (toll-free) or 711
More numbers …
By Mail
HMSA
P.O. Box 860
Honolulu, HI 96808
More addresses …
In Person
HMSA Center
818 Keeaumoku St.
Honolulu, HI 96814
Other HMSA Offices
Privacy and Security
If you have privacy and security concerns, please call HMSA’s Compliance and
Incident Hotline at 1 (800) 749-4672 (toll-free) or email incidents@hmsa.com.
