Covered services; claims
A health insurer may not deny a claim for a covered service provided to a subscriber by a participating provider who has a fully executed contract with a network plan if the covered services are provided after the date of approval of the credentialing application.
See https://www.azleg.gov/viewdocument/?docName=https%3A%2F%2Fwww.azleg.gov%2Fars%2F20%2F03456.htm