My primary interests are laparoscopic & robotic surgery for benign conditions of the stomach and esophagus - primarily hiatal hernia, GERD, achalasia, Zenker's and esophageal diverticula, obesity (gastric bypass & sleeve gastrectomy) -- and revisional surgery for the same conditions. I can and will do other things but prefer to focus on a few operations and do them often. Half my practice is bariatric surgery, the other half helps me do a better job at bariatric surgery and be comfortable handling trickier situations that arise with those operations. A third of my bariatric practice is revisional surgery.