Jay Harness, MD, FACS is the Chief Medical Officer at Maple Tree Cancer Alliance. He is an emeritus breast surgeon at St. Joseph Hospital in Orange, CA He is a recent Clinical Professor of Surgery at the University of California, Irvine. He spent 28 years of his 47-year career in full-time academic positions. Dr. Harness received both his MD degree and training in general surgery at the University of Michigan Medical Center in Ann Arbor. He then remained on the faculty at Michigan and developed one of the first United States academic multidisciplinary breast cancer centers in 1985. He subsequently developed three additional multidisciplinary breast cancer programs across the United States.
Over the years, Dr. Harness has been known for his work in the fields of endocrine and breast surgery, as well as the use of ultrasound in surgical practice. He is a Past-President of: The American Society of Breast Surgeons (ASBrS), the American Association of Endocrine Surgeons (AAES) and Breast Surgery International (BSI). He has authored over 100 scientific articles and book chapters and has been the lead editor of 3 textbooks. He is the founder of Cancer Fitness, which is an educational website about the nature and value of Exercise Oncology Programs. (https://cancerfitness.org/)
His current focus is making “Exercise Oncology” a standard of adjunctive care for cancer patients nationally and internationally.