Dr. Robert G. Marvin, Bariatric Surgeon Surgical and Non-Surgical Solutions Available Houston Surgical Specialists is a multi-specialty practice, headed by an experienced surgeon with a track record of consistently excellent results. We strive to provide a global approach to the complex problem of obesity with a wide range of treatment plans, from medically supervised diets, nutrition and vitamin plans, to all of the proven effective surgical procedures. www.doctormarvin.com