The division of Colorectal Surgery in the Department of General Surgery at UCLA is comprised of a group of expert colorectal surgeons who help patients meet the challenges of colorectal disorders and advance the field through research and education.
Our faculty surgeons are fully trained in general surgery and have special additional training in colorectal surgery to best manage surgical problems of the colon, rectum and anus. We are committed to work as a team to develop a treatment plan customized for each patient.
Dr. Kazanjian completed his undergraduate and medical education at UCLA, earning his MD in 2001. He completed his General Surgery residency at Ronald Reagan UCLA Medical Center, including a two-year fellowship in cancer research. He subsequently trained in Colorectal Surgery at the University of Minnesota. Dr. Kazanjian is certified by the American Board of Surgery and the American Board of Colon and Rectal Surgery. More about Dr. Kazanjian >
Dr. Anne Lin attended Medical School at Tufts University School of Medicine in Boston, MA. She completed her General Surgery Residency at Brown University in Providence, RI. Following the completion of her surgical residency she pursued further training in Endorectal Ultrasound Imaging and colorectal cancer research at Memorial Sloan-Kettering Cancer Cancer in New York, followed by a fellowship in Colon and Rectal Surgery at Cleveland Clinic Florida in Weston. More about Dr. Lin >
Dr. Jonathan Sack is a Board Certified Colon and Rectal Surgeon with over 20 years experience. He is also Board Certified by the American Board of General Surgery. Dr. Sack has extensive experience in treating patients with Colon and Rectal Cancer, Inflammatory Bowel Disease (including Crohn's disease and Ulcerative Colitis), as well as Anorectal Disorders and Pelvic Floor disorders. More about Dr. Sack >
Dr. Clifford Ko received his MD from the University of Chicago. He completed his General Surgery Residency at UCLA Medical Center followed by Colon and Rectal Surgery specialty training at the Lahey Clinic in Boston. Dr. Ko's work focuses on surgical quality of care, including quality measurement, process improvement, and quality maintenance. He is the Director of the Division of Research and Optimal Patient Care at the American College of Surgeons and Director of the American College of Surgeons National Surgical Quality Improvement Program (ACS NSQIP). He is frequently invited to speak nationally and internationally and has served on numerous advisory panels. Dr. Ko's clinical practice is located at the West Los Angeles Veterans Affairs Medical Center.
Dr. Russell received her MD from New York Medical College. She completed her General Surgery Residency at Ronald Reagan UCLA Medical Center followed by Colon and Rectal Surgery specialty training at the Lahey Clinic in Boston. Dr. Russell's research interests include evaluating the quality of surgical care and clinical outcomes after colon and rectal surgery. With respect to quality of care, she has developed quality indicators in elderly as well as colorectal cancer surgery patients. Dr. Russell’s clinical practice is located at the West Los Angeles Veterans Affairs Medical Center.
Dr. Chen completed her undergraduate education at Harvard University and received her Masters of Public Health from the Department of Health Policy and Management at UCLA. Subsequently she completed her medical education at the University of Southern California's Keck School of Medicine, followed by General Surgery Residency at UCLA Medical Center and Colon and Rectal Surgery Fellowship at the University of Minnesota. Her clinical expertise includes pelvic floor disorders, fecal incontinence, inflammatory bowel disease, benign anorectal conditions, and colon and rectal cancer. Her research focuses on surgical outcomes, quality of care and patient education. Dr. Chen's clinical practice is located at Olive View-UCLA Medical Center.