Do I need to see a doctor first? Thanks to direct access, we can see any patient without a referral from a doctor for an initial evaluation.Arizona is one of only 20 states that allow patients complete, unrestricted access to a physical therapist. Need to file a Mercy Care provider claim, submit a change of address or request medical prior authorization? Find these forms and more. Complete this form to refer someone to South Phoenix Healthy Start. How do I apply for the VR Program? USE THIS FORM ONLY if you are a 3rd Party entity requesting verification of an Arizona licensed PT or certified PTA. The Prior Authorization (PA) unit at AHCCCS authorizes specific services prior to delivery of medical related services. PA request status can be viewed online.