Haw. Rev. Stat. § 432:1-603

Notwithstanding any provision of any individual or group hospital or medical service plan contract, whenever the contract provides reimbursement or payment for any service which is within the lawful scope of practice of a psychologist licensed in this State, the person entitled to benefits or performing the service shall be entitled to reimbursement or payment whether the service is performed by a licensed physician or licensed psychologist.