Arizona Oncology is dedicated to the health and safety of our patients, employees as well as all guests that visit any one of our clinics. We have updated our visitor policy at this time. Please note; only one caregiver is allowed to accompany during your appointment, no one under the age of 18, and no visitors in the infusion rooms, radiation and treatment areas. If you have flu-like symptoms, you should contact Arizona Oncology before visiting our clinics for scheduled appointments. This includes fever and symptoms of respiratory illness, such as coughing or difficulty breathing. We ask that you follow our tips to stay healthy and to help do our part in prevention of spreading of these viruses.

Locations and Physicians

Stephen Ponas, MD




North Phoenix & Scottsdale - Affiliated Urologists
20940 N. Tatum Blvd Suite 125
Phoenix, AZ 85050
Phone: 602-264-0608
Fax: 602-234-0417

Central Phoenix - Affiliated Urologists
5133 N. Central Ave Suite 206
Phoenix, AZ 85102
Phone: 602-264-0608

Stephen Ponas, MD


Dr. Stephen H. Ponas was born and raised in Kalamazoo, Michigan. He graduated from the University of Michigan Honors Program in 1984 with a degree in Chemistry. He received his MD from the University of Texas Health Science Center in San Antonio in 1988. He did two years of general surgery training at Barnes Hospital in St. Louis from 1988-1990. He completed his Urologic Surgery training at Washington University in 1994. His practice includes general adult Urology with particular interests in Urologic oncology including laparoscopic and robotic surgery, endourology, stone diseases and female urology.