RCW 48.21.110: Payment of benefits.

The benefits payable under any policy or contract of group or blanket disability insurance shall be payable to the employee or other insured member of the group or to the beneficiary designated by him or her, other than the policyholder, employer or the association or any officer thereof as such, subject to provisions of the policy in the event there is no designated beneficiary as to all or any part of any sum payable at the death of the individual insured.

The policy may provide that any hospital, medical, or surgical benefits thereunder may be made payable jointly to the insured employee or member and the person furnishing such hospital, medical, or surgical services.