California Code, Labor Code - LAB § 515.6

(a) Section 510 shall not apply to any employee who is a licensed physician or surgeon, who is primarily engaged in duties that require licensure pursuant to Chapter 5 (commencing with Section 2000) of Division 2 of the Business and Professions Code, and whose hourly rate of pay is equal to or greater than fifty-five dollars ($55.00).  The department shall adjust this threshold rate of pay each October 1, to be effective the following January 1, by an amount equal to the percentage increase in the California Consumer Price Index for Urban Wage Earners and Clerical Workers.

(b) The exemption provided in subdivision (a) shall not apply to an employee employed in a medical internship or resident program or to a physician employee covered by a valid collective bargaining agreement pursuant to Section 514.