I used Dr. Ahmad from Mather. First, it a bariatric center of excellence. Second, I checked his background, no lawsuits, no leaks, etc. He and his wife are very nice people. When you are going through the approval process, you need to pick someone close because doing the pre-op is like a part-time job. I would recommend him, although I think his practice is expanding so much, there is office waits & clerical errors (like same last name, apt confusion.) But, his surgical background and how many times he has done this far surpasses any of those other things.