I highly recommend Dr. Sharaiha at Weill-Cornell in Manhattan. She did my ESG (nonsurgical Endoscopic Sleeve Gastroplasty) seven months ago, and do far I've lost 45 pounds.
I had my ESG seven months ago (early December 2017) in Manhattan, and so far I've lost 45 pounds (from 250 down to 205), which I'm told is better than average.