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.