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

Christopher DiSimone, MD, PhD

Patient Portal


Medical Oncology & Hematology


Tucson - Wilmot Road
603 N. Wilmot Road, Suite 151
Tucson, AZ 85711
Phone: (520) 886-0206
Fax: (520) 886-0829

Christopher DiSimone, MD, PhD


Johns Hopkins University

Medical School

University of California-Davis


University of California-San Diego


University of California-San Diego


Hematology and Oncology at University of California-San Diego

Board Certification

Medical Oncology and Hematology


Dr. DiSimone specializes in treating patients with all types of cancer. He holds a longstanding interest in the treatment of prostate, bladder, kidney, and testicular cancer, and supervises the TMC GU Tumor Board.  

Dr. DiSimone earned a bachelor’s degree with honors in chemistry at Johns Hopkins University and a Ph.D in chemistry at Cal Tech in Pasadena, California. He earned his medical degree from UC Davis and completed his residency in internal medicine at University of California-San Diego, where he served as a hematology and oncology fellow. Dr. Di Simone also served as faculty at Scripps Research Institute after completing research at Cal Tech and Johns Hopkins. 




Dr. DiSimone is dedicated to bringing the newest clinical approaches to patient treatment, with particular interest in clinical trials. He is a long-term site research leader for Arizona Oncology, and serves on the US Oncology research committee directing clinical trials. 

Academic Honors & Professional Achievements

Among Dr. DiSimone's honors and fellowships are undergraduate honors from Johns Hopkins University, NIH Predoctoral and Postdoctoral fellowships, and receipt of the Edward M. Gold Award, signifying UC Davis’ most outstanding student in medicine. Dr. DiSimone's research has been published in Virology, Vaccines, and BMC Microbiology. In recent years, he has contributed to multiple presentations at national conferences on new drug development. 

In The Media

Arizona Oncology - The Truth About Prostate Cancer
Congratulations to Arizona Oncology’s TOP DOCS