Is this a California related question?
California requires all NP's who "prescribe" to have a furnishing license. Based on your post, you never practiced as an NP though you are certified as one. You fall under an unusual case in that you graduated more than 5 years ago so your graduate school Pharmacology credits are no longer within the acceptable window and you never had any experience prescribing either since you never practiced. You may have to retake the Advanced Pharmacology course again but do check with the BRN to make sure. If I were you, I would send a filled out application form for NPF for now and follow-up with a phone call in a few weeks to see what further steps they want you to do.