Blood Disorders & Cancer Care

Bonni Lee Guerin, MD

Chair, Breast Panel

Bonni L. Guerin, a medical oncologist with 20 years of experience, is dedicated to providing the most up to date, cutting edge treatment while looking at each of her patients as an individual. Her philosophy is one of collaboration, working with all members of the care team to provide the best outcome possible. Dr. Guerin believes that compassion and being a good listener, traits she learned from her mother, help tailor a treatment plan that reflects not only the highest order of medical care, but also one that uniquely reflects each and every patient. Dr. Guerin believes it is just as much about living well as it is living long.

Dr. Guerin currently serves as the Director of Breast Cancer Treatment and Prevention at the Carol G. Simon Cancer Center at Overlook Medical Center. She is the principal investigator of numerous clinical trials exploring new ways to incorporate the latest advances in the management of breast cancer. She completed her residency at Vanderbilt University and her fellowship training at the University of California in San Diego. She is board certified in medical oncology and has advanced specialized expertise in the management of breast diseases. She is also actively involved in the delivery of highly-specialized immunotherapy for the treatment of melanoma and kidney cancer.

Dr. Guerin currently is the director of Breast Cancer Treatment and Prevention at the Carol G. Simon Cancer Center at Overlook Medical Center. She has been named by Castle Connelly as one of NY/Metro Top Doctors for the last 8 years, as well as a Top Doctor for Women's Health. She has recently been honored by Curemonos, a New Jersey non-profit organization dedicated to supporting medically under-served women with breast cancer, and was the keynote speaker at the American Cancer Society Relay for Life in Chatham NJ. Dr. Guerin has also served as the Chair, Women's Oncology Forum, Network for Oncology Communication and Research.

Office Location

Carol G. Simon Cancer Center at Overlook Medical Center
99 Beauvoir Avenue, Summit, NJ 07901
Phone: (908) 608-0078 •   Fax: (908) 608-1504
» Driving Directions



Board Certified, American Board of Medical Oncology
Board Certified, American Board of Internal Medicine

Medical Training

State University of New York, Stonybrook, New York


Vanderbilt University, Nashville, Tennessee


UCSD Cancer Center, San Diego, California


Member, Expert Panel Consensus Guidelines for Systemic Therapy of Metastatic Renal Cell Carcinoma, 2005
Pfizer Award for Excellence in Biochemical Research, 1983