Cal. Bus. & Prof. Code § 2412
The Division of Licensing may adopt and enforce regulations to carry out the purposes and objectives of this article and the Moscone-Knox Professional Corporation Act including regulations requiring (a) that the bylaws of a medical or podiatry corporation shall include a provision whereby the capital stock of such corporation owned by a disqualified person (as defined in Section 13401 of the Corporations Code), or a deceased person, shall be sold to the corporation or to the remaining shareholders of such corporation within such time as such regulations may provide, and (b) that a medical or podiatry corporation shall provide adequate security by insurance or otherwise for claims against it by its patients arising out of the rendering of professional services.
Ca. Bus. and Prof'l. Code § 2412