Dr. Greenberg, medical director of Radiation Oncology Services, has over 17 years' experience as a radiation oncologist. He was recruited to the Comprehensive Cancer Center in 1993 from Redwood Regional Oncology Center in Santa Rosa, CA. He earned his medical degree from the University of California at Los Angeles (UCLA), where he also served his internship and residency, and was on the faculty. Dr. Greenberg is board certified in Therapeutic Radiology.