Mark Epstein is also the name of a Mixed Martial Artist, who currently fights in the Cage Rage promotions.
Mark Epstein, M.D. (b. 1953), is an American psychiatrist who has written extensively about Buddhism and psychotherapy. Epstein is a graduate of Harvard College and the Harvard Medical School. He has been a practicing Buddhist since his early twenties, primarily as a student of Joseph Goldstein and Jack Kornfield. He is a psychotherapist with a private practice in New York City, contributing editor to Tricycle: The Buddhist Review and Clinical Assistant Professor of Psychology at New York University. His books include Thoughts Without a Thinker and Going to Pieces without Falling Apart. Both books deal with the difficult and counter-intuitive Eastern teachings of non-self, a concept which has sometimes proved so alien to the Western mind as to be out of reach for many Western Buddhists.