General Questions

Plan members

If you are a plan member and have questions about your plan:

  • For fastest service, please call the toll-free number located on the back of your member ID card.

  • If you do not have your member ID card, call 866-377-3977


 Health care providers

If you are a health care provider and have questions regarding a plan member’s claim:

  • Please call the toll-free number located on the back of the plan member’s ID card or submit the claim to the mailing address listed on the back of the plan member’s ID card.

  • If you do not have the plan member’s ID card, call 866-377-4621

  • If you are a provider interested in joining the HMN MultiPlan network, please call 808-626-5731 or 1-800-919-1173


Business Inquiries

Please direct business inquiries to:

Hawaii-Mainland Administrators (HMA) 

Pacific Guardian Tower

1440 Kapiolani Boulevard, Suite 1020

Honolulu, Hawaii 96814