Dr. Louis Difronzo is a well-known general surgeon in Los Angeles, California. He received his medical diploma from the University of California Irvine School of Medicine in 1993. After getting his medical degree, he did an internship in surgery at Kaiser Foundation Hospital in Los Angeles, California. Dr. Difronzo completed education with a residency in general surgery at Kaiser Permanente Southern California and a fellowship I surgical oncology at John Wayne Cancer Institute in Santa Monica, California. He is certified by the American Board in surgery. His subspecialty is surgical oncology (other than breast). This doctor works at Kaiser Permanente Los Angeles Medical Center and at Kaiser Permanente 4760 Sunset Medical Offices. He was awarded the honors ACS Fellow in 2011 and CMS Stage 1 in 2012. He has published a lot of medical articles in cooperation with other doctors. He is a member of the American College of Surgeons.