Contact Us

Mailing Address

MDX Hawai‘i
500 Ala Moana Blvd. Suite 2200
Honolulu, HI 96813-4993

We are located at Waterfront Plaza (formerly Restaurant Row) in downtown Honolulu. Our office hours are Monday through Friday, 8 a.m. to 5 p.m. (HST)

Please contact us at the following phone/fax numbers:

O‘ahu
Neighbor Islands and Mainland (toll-free)
For Provider Assistance (member eligibility, claims questions, general information, etc.):
Phone:
O‘ahu: 532-6989
Neighbor Islands and Mainland (toll-free): 1-800-851-7110
Fax:
O‘ahu: 532-3396
Neighbor Islands and Mainland (toll-free): 1-800-844-7522
For Precertification Authorization (Medical, Surgical or Behavioral Health Services):
Phone:
O‘ahu: 522-7549
Neighbor Islands and Mainland (toll-free): 1-800-562-6907
Fax:
O‘ahu: 532-6999
Neighbor Islands and Mainland (toll-free): 1-800-688-4040
For Members:
Phone:
O‘ahu: 522-7560
Neighbor Islands and Mainland (toll-free): 1-800-856-4668
General Information:
Phone:
O‘ahu: 522-7500
Fax:
O‘ahu: 522-7561

Coming Soon! MDX Hawaii Kupuna Care Advantage E-Newsletter.



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