This chapter does not restrict the activities of a physician and surgeon licensed under Chapter 5 (commencing with Section 2000) of Division 2 of the Business and Professions Code or a physician assistant licensed under Chapter 7.7 (commencing with Section 3500) of Division 2 of the Business and Professions Code. Nothing in this chapter authorizes a practitioner to perform activities that are restricted under Chapter 5 (commencing with Section 2000) of Division 2 of the Business and
Professions Code.