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

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