Cal. Welf. & Inst. Code § 14454
(b) Where a dispute arises between the prepaid health plan and the nonprepaid health plan provider as to the liability of the prepaid health plan for such services, the nonprepaid health plan provider may submit the matter to the director for determination in the form of a claim documenting as fully as reasonably possible the nature of the emergency, the necessity for the treatment rendered, the appropriateness of the length of stay for inpatient care, the reason the patient could not have been transferred to a provider of the prepaid health plan, and including any response by the prepaid health plan to the claim which resulted in the dispute. The director shall, by regulation, provide for resolution of the dispute in a timely fashion and in a manner guaranteeing the procedural due process requirements of the provisions of Chapter 5 (commencing with Section 11500), Part 1, Division 3, Title 2 of the Government Code, except that the department shall use its own hearing officers. The hearing officer may be assisted by a physician. To the extent feasible, the director shall consolidate the claims of the nonprepaid health plan provider against the prepaid health plan.
In no event, shall the prepaid health plan or the nonprepaid health plan provider bill the enrollee for services which are or have been the subject of review by the director pursuant to this section.