Dr. Karen Lewison graduated from the New York Medical College and then did her internship at the Danbury Hospital. She completed her residency in Radiology at the New York Medical College and a residency in Nuclear Medicine at the University of California, Davis Medical Center. She is a board-certified radiologist based in San Jose, California and has more than two decades of clinical experience. Dr. Lewison currently practices at the OHSU Nuclear Medicine and has contributed to a research paper.