Dr. Cernero is an experienced and knowledgeable bariatric surgeon serving the DFW, North Texas, and Southern Oklahoma areas with weight loss solutions. Bariatric Surgeon | General Surgery | Cosmetic Procedures In 2006, Dr. Cernero opened his practice in Denison, Texas with the goal of bringing the latest techniques in general surgery and bariatric surgery to Denison, Sherman, and surrounding Texoma and North Texas areas. It is Dr. Cernero’s privilege to do the work he loves, treating patients in his hometown and changing lives through his skill and expertise as a general and bariatric surgeon.