An NCI-designated Comprehensive Cancer Center

Aaron Lewis , M.D.

Surgeon; Surgical Oncologist
Clinical Expertise
  • Complex gastrointestinal surgery
  • Endocrine surgery
Assistant Clinical Professor, Division of Surgical Oncology, Department of Surgery
Arcadia Patients: 626-218-9840

Clinical Teams

  • Surgery
  • Surgery - Surgical Oncology
"I couldn’t ask for a better career than one in which I can devote my full energy to care and treat patients who are traversing the unfamiliar path of a cancer diagnosis. 
Aaron G. Lewis, M.D., is a board-certified surgeon broadly trained across all aspects of surgical oncology with a particular interest in complex gastrointestinal surgery and endocrine surgery. He has training and certification in the da Vinci Robotic Surgical System.

Dr. Lewis’ broad training has cultivated many clinical research interests, including understanding factors that affect survival and quality of life in patients with advanced neuroendocrine tumors and improving the care provided to frail and elderly surgical patients, which he calls an “underrepresented population in clinical trials.”

Dr. Lewis joined the City of Hope staff after completing a fellowship here where he was also a recipient of the Values in Action Award for compassion. He received his medical degree from Medical College of Wisconsin in Milwaukee, served his internship at University of California San Francisco and residency at Huntington Memorial Hospital in Pasadena, California. While at Huntington, he took part in the Phil Simon Clinic Tanzania project.


209 Fair Oaks Ave.

South Pasadena, CA 91030

301 W. Huntington Drive, Suite 400

Arcadia, CA 91007

In The News