Dr. Less Chafen is a radiologist based in Walnut Creek, California. He has an extensive medical experience of more than 40 years. Dr. Chafen graduated from the Loma Linda University. Afterward, he continued with an internship at Letterman Army Medical Center and a residency stage at the same medical institution. Dr. Less Chafen is a board-certified specialist in diagnostic radiology. He contributed to a study that covered the topic perforation of the extrahepatic bile duct. At the moment, Dr. Chafen collaborates with the Alta Bates Summit Medical Center in Berkeley, the San Ramon Regional Medical Center, Alta Bates Summit Medical Center - Summit Campus in Oakland.