He is the Sub director of the North Rehabilitation Unit, the Mexican Social Security Institute and Chief of the Department of Cardiac Rehabilitation at the C.H 20 de Noviembre Hospital in Mexico City. His duties include supervising the electromyography unit at his hospital, training resident doctors in physiatry, and coordinating the educational efforts of his department. Dr. Guzman is also Secretary of the Mexican Society of Physical Rehabilitation Medicine. He holds a General Practitioner degree from the University of Veracruz Medical School (1971) and an M.D degree from the National University of Mexico (1979). He has travelled widely in South and Central America and in the U.S for educational and professional exchanges.