Before joining Summit Health, Mary T. O'Connor, MD, was Clinical Assistant Professor of Radiology at New York University in New York City. Dr. O'Connor also has been a consulting radiologist for the Women's Mammography Association, a staff radiologist for the Cranford Diagnostic Imaging Center, a consulting radiologist for Brems Imaging, and an attending physician in internal medicine at Overlook Medical Center in Summit, New Jersey. Dr. O'Connor is a member of the Society of Breast Imaging.

Dr. O'Connor believes in partnering with her patients to make thoughtful, rational decisions that help improve and maintain their health.

When she is not working with her patients, Dr. O'Connor enjoys being a devoted wife, mother, and grandmother.