We wanted to reassure you that Arizona Oncology remains open to provide medically necessary, life-sustaining care. In addition, our expert care team can now see patients through scheduled virtual appointments on a secure platform from the comfort and safety of your home.

Updated visitor policy: For the safety of our patients and staff, no visitors will be permitted into the clinic. Family members and caretakers may participate in the appointments remotely by phone or video conference if desired. All patients and staff will be required to wear a face covering(or mask) that covers the nose and mouth. This new policy reflects the recent recommendations by the CDC to reduce community-based transmission.

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

Mazen Khattab, MD, CPE

Patient Portal Genetic Testing


Medical Oncology & Hematology


Phoenix - Deer Valley - Medical Oncology
19646 N. 27th Avenue, Suite 406
Phoenix, AZ 85027
Phone: (623) 587-4868
Fax: (623) 582-5300

Mazen Khattab, MD, CPE

Medical School

The University of Damascus, Damascus, Syria


Youngstown, OH at The Western Reserve Care System/NEOUCOM


Hematology and Oncology at Allegheny General Hospital and the Western Pennsylvania Hospital/Temple Univ.

Board Certification

Medical Oncology and Hematology.


Originally from Damascus, Syria, Dr. Khattab is a member of the American College of Physicians and is a member of the American Society of Hematology, and American Society of Clinical Oncology. In 2003, he won the Intern of the Year Award, in 2005; he won the Patient Care Award and received the NEOUCOM Certificate of Appreciation. Dr. Khattab served as Assistant Professor of Internal Medicine at North Eastern Ohio Universities, College of Medicine, Rootstown, OH between March 2006 until June 2010. Outside of practicing medicine, Dr. Khattab enjoys playing soccer and traveling.