Cal. Welfare and Institutions Code § 14170.11

(a) No person or entity shall submit a claim to the department or its fiscal intermediaries for reimbursement under the Medi-Cal program for a nerve conduction test or for electromyography unless the person or entity’s records contains a copy, for each person performing each test or electromyography, for which a claim is submitted, a certificate or diploma of satisfactory completion of a neurology or physical medicine and rehabilitation residency program accredited by the Accreditation Council of Graduate Medical Education (ACGME). (b) The department may identify by publication, in provider bulletins or similar instructions, requirements that reimbursement from the Medi-Cal program shall only be made for the provision of certain procedures, tests, examinations, or other medical services provided by persons who possess a particular level of education, experience, and training as evidenced by satisfactory completion of medical residency programs or board certification in a particular field and that those submitting claims shall maintain a copy of this certificate or diploma. (c) Notwithstanding Chapter 3.5 (commencing with Section 11340) of Part 1 of Division 3 of Title 2 of the Government Code, the department may implement, interpret, or make specific, this section by means of all county letters, provider bulletins, or similar instructions. Thereafter, the department may adopt regulations in accordance with the requirements of Chapter 3.5 (commencing with Section 11340) of Part 1 of Division 3 of Title 2 of the Government Code.