Ariz. Rev. Stat. § 20-2804
A. A health care services plan engaging in utilization review to determine whether any emergency services rendered by a provider were medically necessary and in accordance with this chapter shall consider the following factors:
C. For the purpose of claims payment and utilization review of emergency services, a health care services plan shall have the right to require as a condition of payment that each treating provider produce all of the following:
D. If a health care services plan pays any portion of a provider's claim for services rendered to an enrollee, the plan shall not be permitted to recover all or part of that payment from the enrollee, except for: