Bus. & Prof. Code, § 2633

(a) A person holding a license as a physical therapist issued by the board may use the title “physical therapist” or the letters “P.T.” or any other words, letters, or figures that indicate that the person using same is a licensed physical therapist. No other person shall be so designated or shall use the term licensed or registered physical therapist, licensed or registered physiotherapist, licensed or registered physical therapy technician, or the letters “L.P.T.,” “R.P.T.,” or “P.T.”.

(b) A licensed physical therapist who has received a doctoral degree in physical therapy (DPT) or, after adoption of the regulations described in subdivision (d), a doctoral degree in a related health science may do the following:

(1) In a written communication, use the initials DPT, PhD, or EdD, as applicable, following the licensee’s name.

(2) In a written communication, use the title “Doctor” or the abbreviation “Dr.” preceding the licensee’s name, if the licensee’s name is immediately followed by an unabbreviated specification of the applicable doctoral degree held by the licensee.

(3) In a spoken communication while engaged in the practice of physical therapy, use the title “doctor” preceding the person’s name, if the speaker specifies that he or she is a physical therapist.

(c) A doctoral degree described in subdivision (b) shall be granted by an institution accredited by the Western Association of Schools and Colleges or by an accrediting agency recognized by the National Commission on Accrediting or the United States Department of Education that the board determines is equivalent to the Western Association of Schools and Colleges.

(d) The board shall define, by regulation, the doctoral degrees that are in a related health science for purposes of subdivision (b).