Ask them if you can see their operative reports. We’ve seen lots of supposed DS surgeons popping up in the last few years who actually do the SADI/SIPS/LoopDS and while that surgery is much better than the RNY, it isn’t the DS.Well that is interesting because my surgeon performed 2 of my family memebers Bariatric Surgery which were DS and they have had great success. He also specializes in revisions. His name is Dr. morales and he is based out of St. Louis.