CA Ins Code §10123.135(e)

(e) An individual, other than a licensed physician or a licensed health care professional who is competent to evaluate the specific clinical issues involved in the health care services requested by the provider, may not deny or modify requests for authorization of health care services for an insured for reasons of medical necessity. The decision of the physician or other health care provider shall be communicated to the provider and the insured pursuant to subdivision (h).