An issuer and an employee welfare benefit plan, whether insured or self funded, as defined in the employee retirement income security act of 1974, 29 U.S.C. Sec. 1101 et seq. may not consider the availability of eligibility for medical assistance in this state under medical assistance, RCW 74.09.500, or any other state under 42 U.S.C. Sec. 1396a, section 1902 of the social security act, in considering eligibility for coverage or making payments under its plan for eligible enrollees, subscribers, policyholders, or certificate holders.