A bariatrician is a physician who specializes in the field of weight loss. Bariatrician comes from the Greek word bari which means weight.  Dr. McCarthy specializes in the nonsurgical treatment of weight loss and weight related illness.  Dr. McCarthy has received advance training in bariatric medicine and recognizes that excess weight is a medical problem that requires treatment by an experienced specialist.  Specialists in the field not only recognize the disease and its effects, but are also trained in the prevention and treatment of weight disorders.