Except as provided in subdivision (h) of Section 3644, a person shall have a valid, unrevoked, or unsuspended license issued under this chapter to do any of the following:
(a) To claim to be a naturopathic doctor, licensed naturopathic doctor, doctor of naturopathic medicine, doctor of naturopathy, or naturopathic medical doctor.
(b) To use the professional abbreviation “N.D.” or other titles, words, letters, or symbols with the intent to represent that he or she practices, is authorized to practice, or is able to practice naturopathic medicine as a naturopathic doctor.