Dr. Margolis received his medical degree from the University of Maryland in 1969. He completed his Internal Medicine internship and residency training at the University of California, Irvine. He completed his pulmonary fellowship at Harbor General Hospital. Dr. Margolis was the Chief of Staff at Mission Hospital Regional Medical Center in Mission Viejo, California in 1990. He is currently a member of Mission Internal Medical Group, a multi-specialty medical group serving southern Orange County, California.