Dr Gary Hartstein, M.D. (born 1955) in Staten Island, United States, is Associate Professor of Anesthesia and Emergency Medicine at University Hospital , Liege, Belgium and Chief Medical Delegate for the FIA Formula 1 World Championship.

After finishing his undergraduate study at the University of Rochester, Hartstein trained as a doctor in Belgium during the 1970s, due to the lack of training positions available in the United States. In 1983 he returned to his native New York, spending six years working in The Bronx, at the Einstein College of Medicine, specialising in anaesthesiology.

In 1989 Hartstein returned to Belgium and began working at Spa-Francorchamps as part of the local medical team attending races. In 1990 Hartstein was assigned to the medical car containing Professor Sid Watkins and the two doctors immediately formed a firm friendship.

Hartstein’s work at the Belgian Grand Prix continued until 1997 when, realising the need for an anaesthetist to assist Watkins, he was recruited by the FIA. For the next seven years Hartstein and Watkins rode together in the medical car at the start of most races.

In January 2005 Sid Watkins announced that he was to retire as Formula 1 Medical Delegate and Hartstein was selected as his successor.

He is married to Chantal and has two children, Yannick, a 21-year-old Political Science major, and Chloe, a 19-year-old model. Hartstein lives in Liege year-round.