I am a new pharmacist. I am curious as to what is the law for physicians prescribing in different states. (1) Can a prescriber, who doesn't have a license to practice in CA, call in a verbal for a CA patient? For an example, MD is licensed in NY but not in CA. Patient lives in CA and the pharmacy is in CA. Can MD call in a verbal to the CA pharmacy? (2) MD is licensed in NY but not in CA. Patient lives in NY but the pharmacy is a mail order pharmacy and is located in CA. The pharmacy is planning to mail the prescription to NY. Can MD call in a verbal to the CA mail order pharmacy?