Dr. Green is board-certified in both Internal Medicine and Sports Medicine and is a fellow in the American College of Physicians and American College of Sports Medicine. He joined the UCLA Department of Family Medicine in 1988 and is currently a clinical professor in the UCLA School of Medicine in the Division of Sports Medicine. He has been a team physician for intercollegiate athletics since 1986 and currently serves as a team physician for Pepperdine University and the US National Soccer Team. Dr. Green is also the medical director for the UCLA Intercollegiate Drug Testing Program. Dr. Green served as a member of the NCAA's Committee on Competitive Safeguards and Medical Aspects of Sport and chaired the NCAA Committee on Drug Testing and Drug Education for 5 years. He is actively investigating the area of athletes and drug abuse and conducts research through the UCLA Olympic Analytical Laboratory. Dr. Green is also the consultant to Major League Baseball on Anabolic Steroids and Performance-enhancing drugs. He is in private practice at the Pacific Palisades Medical Group, a clinical affiliate of the UCLA Medical Group