(a) Physician means a person licensed as a physician and surgeon by the Medical Board of California or by the Osteopathic Medical Board of California.

(b) Attending Physician. Attending physician means the physician chosen by the client or by the client's authorized representative to be responsible for the medical treatment of the client in the facility.

(c) Psychiatrist. Psychiatrist means a person who is licensed as a physician and surgeon by the Medical Board of California or the Osteopathic Medical Board of California and who is either (1) certified or eligible for certification by the American Board of Psychiatry and Neurology, or (2) who is certified or eligible for certification as such by the American Osteopathic Board of Neurology and Psychiatry, or (3) has specialized training and experience in psychiatry.