49 Pa. Code § 18.907 – Acceptable titles and professional designations by registrants; prohibited titles.

(a) An individual must have a current, active and unsuspended registration to claim to be, or hold oneself out as, a naturopathic doctor, registered naturopathic doctor, doctor of naturopathic medicine or use any similar title implying that the individual holds a current registration as a naturopathic doctor in this Commonwealth.
(b) A naturopathic doctor who uses the designation ‘‘Dr.’’ shall further identify himself as a ‘‘naturopathic doctor,’’ ‘‘registered naturopathic doctor’’ or ‘‘doctor of naturopathic medicine’’ and may not use any term or designation that would imply that the naturopathic doctor is licensed or authorized to practice medicine and surgery, dentistry, podiatry, optometry, psychology, nursing, physical therapy, acupuncture, chiropractic, genetic counseling, athletic training, massage therapy or any other health care profession, unless that individual also holds a current and active authorization to practice the other profession issued by the appropriate licensing authority of this Commonwealth.