Colorectal Surgery Team
Colorectal Surgery Faculty

Andreas M. Kaiser, M.D., professor and chief, Division of Colorectal Surgery, Department of Surgery, specializes in colorectal diseases.

Lily Lai, M.D., is a surgical oncologist and professor in the Division of Colorectal Surgery, Department of Surgery.
Kurt A. Melstrom, M.D., is an associate clinical professor in the Division of Colorectal Surgery, Department of Surgery.
Mark Hanna, M.D., is an assistant clinical professor in the Division of Colorectal Surgery, Department of Surgery.

Yasmin Zerhouni, M.D., is an assistant clinical professor in the Division of Colorectal Surgery, Department of Surgery.
Surgical Oncologists

I. Benjamin Paz, M.D., is a nationally renowned surgical oncology surgeon, with expertise in breast cancer, gastrointestinal and rectal cancers, and tumors involving the bone and soft tissues.

Aaron Lewis, M.D., is a surgeon at City of Hope's South Pasadena and Arcadia locations, specializing in general oncologic surgery.

Moshe Faynsod, M.D., is surgical oncologist at City of Hope South Bay in Torrance, California.

Aziz Ahmad, M.D., is a surgical oncologist in City of Hope's Glendora location.

Heather Player, M.D., is breast and colon cancer surgeon and an assistant clinical professor in the Division of Surgical Oncology at City of Hope. She practices at City of Hope | Antelope Valley and Mission Hills.

Specializing in bioengineering and tumor micro-environment in cancer development and progression, Andrew Nguyen, M.D., is an assistant clinical professor in the Division of Surgical Oncology in the Department of Surgery at City of Hope.

Aaron Scott, M.D., is an assistant clinical professor in the Division of Surgical Oncology in the Department of Surgery at City of Hope.