Dr. Joshua D. Ellenhorn, M.D.

Dr. Joshua D. Ellenhorn, M.D. Get a Second Opinion

Attending Physician, Oncology Surgery

Cedars Sinai Medical Center, Los Angeles, CA

Areas of expertise

Surgical Oncology


Dr. Ellenhorn earned his B.A. magna cum laude in medical science from Boston University, Boston, MA, and his medical degree from the Boston University School of Medicine. He completed his internship and residency in general surgery (including serving as Chief Resident) at the University of Cincinnati, Cincinnati, OH, and a fellowship in surgical oncology at Memorial Sloan-Kettering Cancer Center, New York City.

In 1993, Dr. Ellenhorn was appointed Staff Surgeon at the City of Hope Cancer Center, Duarte, CA and over the next nine years he served in a variety of positions at the hospital. They include Chief of Division of General and Oncologic Surgery; Director of Surgical Education; Director of the Surgical Oncologic Fellowship Program; and Professor of Surgery. Since 2012, he has been a member of the Attending Staff at Cedars-Sinai Medical Center in Los Angeles and St. John’s Health Center, Santa Monica, CA.


Boston University School of Medicine, Boston, MA
Immunology: University of Chicago, Chicago, IL
Surgical Oncology: Memorial Sloan-Kettering Cancer Center, New York, NY
General Surgery: University of Cincinnati Hospital, Cincinnati, OH
General Surgery: University of Cincinnati Hospital, Cincinnati, OH
Medical Degree
M.D., F.A.C.S.


NIH Post-Doctoral Fellowship: Endocrinology
Fellowship Award: American Cancer Society, Clinical Oncology (1992-1993)
First Place: Residents Research, New York Society of Colon and Rectal Surgeon (1993)
City of Hope, Duarte, CA:
Staff Surgeon (1993-2012)
Director of Surgical Education (1998-2010)
Director, Surgical Oncology Fellowship Program (2000-2012)
Associate Professor, Department of General and Oncologic Surgery (2003-2010)
Chief, Division of General and Oncological Surgery (2008-2012)
Cedars-Sinai Medical Center, Los Angeles, CA:
Attending Staff (2012- )
Collaborative Member, Samuel Oschin Comprehensive Cancer Institute (2012-)
Clinical Professor of Surgery (2013- )
Adjunct Professor, John Wayne Cancer Center, Santa Monica, CA (2013-)


Available on request