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Jay K. Harness MD, FACS

Dr. Harness is a past-President of The American Society of Breast Surgeons and Breast Surgery International. He is a full-time breast surgeon at the St. Joseph Hospital Center for Cancer Prevention & Treatment in Orange, California. Practicing surgery for 40 years, Dr. Harness specializes in breast surgery and surgical oncology.

After graduating from medical school from the University of Michigan, Ann Arbor, he conducted his internship and residency at the University of Michigan Medical Center. Dr. Harness then remained on the faculty at the University of Michigan and developed one of the nation’s first multidisciplinary breast center in 1985. He left the University of Michigan in 1989 and spent two years at Tufts University School of Medicine in Boston where he also established a multidisciplinary breast center at St. Elizabeth’s Medical Center. Subsequently, he came to Oakland, California in 1991 to join the University of California-East Bay Department of Surgery where he was a Professor and Chief of Surgical Oncology at Highland General Hospital.

The opportunity to direct his third multidisciplinary breast center in Southern California came in the summer of 2003. Dr. Harness spent 28 years in academic general surgery at the University of Michigan, Tufts University School of Medicine, the University of California, Davis, and the University of California, San Francisco. He is currently a clinical professor of surgery at the University of California, Irvine. Dr. Harness has been recognized nationally and internationally for his work in breast and endocrine surgery.

He is a member of several national and international surgical societies and associations. He has served as Secretary-Treasurer, and President of the American Association of Endocrine Surgeons and Chair, Board of Directors, of The American Society of Breast Surgeons. He has authored over 80 scientific articles and book chapters and has been the lead editor of 2 textbooks.