Cal. Welf. & Inst. Code § 15888

If a subscriber is dissatisfied with any action or failure to act which has occurred in connection with a participating plan’s coverage, the subscriber shall have the right to appeal to the department and shall be accorded an opportunity for a fair hearing. Hearings may be conducted, insofar as practicable, pursuant to the provisions of Chapter 5 (commencing with Section 11500) of Part 1 of Division 3 of Title 2 of the Government Code.