if i have my cannabis card to use medical marijuana in CA, can i get medical marijuana in oahu?

Im leaving to Oahu in a couple days and was just wondering if i would be able to go to the Oahu dispensaries for medical marijuana?

: http://alcoholdrugstreatment.info/if-i-have-my-cannabis-card-to-use-medical-marijuana-in-ca-can-i-get-medical-marijuana-in-oahu