Southern Arizona Orthopedics. Physician Assistant (PA), Surgical Assistance • 2 Providers. 6567 E Carondelet Dr Ste 415, Tucson AZ, 85710. Make an Appointment. (520) 885-6701. Southern Arizona Orthopedics is a medical group practice located in Tucson, AZ that specializes in Physician Assistant (PA) and Surgical Assistance..