Section 440.40 Of [part 1.7. Health Facilities Disclosure Act] From California Health And Safety Code >> Division 1. >> Part 1.7.
440.40
. The primary attending health care practitioner shall obtain
prior written consent from each patient for whom a billing is
requested, authorizing the release of the patient's billing. A copy
of this signed patient consent form shall be forwarded to the health
care facility as part of the written request for itemized billings.