If she is using a drs submitter number without permission that is scary. I definitely would not want to be a part of that. The rules for APN's vary from state to state and I really don't feel comfortable commenting on Arkansas since I'm not familiar. I think most states do require an MD to sign off. Good luck!
P.S. This website is GREAT! I am wanting to get a couple of your books, but, can't decide on which ones I should start out with, so if anybody has an opinion on that please pass it on!