PPA has a monopoly over high-risk pregnancies in Arizona. There are other high-risk MFM practices, but you would have to call them and ask if they would be comfortable with just a consult. If you or your babe (congrats) are truly high-risk, they might just refer you back to PPA. I delivered with PPA because no other high-risk practice would take my sorry *ss. And I hated their service model.
But...the light at the end of the tunnel was three of their providers. One midwife, who is truly amazing. Suzanne Aymami. The others were uninspiring or offensive. And for the doctors, Dr. Jordan Perlow, if you have a sense of humour or extreme patience. The other doctor I liked was Garret Lam, and I liked him for the entire 5 minutes I spent with him delivering my baby. He had a great sense of humour and was quite technically proficient. All other doctors can kiss my you know what and will never get the privilege of working in or near my lady bits again.
I hated every minute of the hospital though, Good Sam is pretty ghetto. PPA has some pretty rigorous monitoring standards at the end of pregnancy, and they may expect you to move in and live at their office for the amount of testing they may want to do. I ended up pissing them off severely when I stopped pre-natal care. They seem to have forgotten that it was MY UTERUS, and NOT THEIRS.
Good luck and post back if you want to talk about anything or anyone. If you could get by with making your appointments with Suzanne, you might do very well. And then whoever is on call for delivery (they have like...30 doctors).