Dr. Krahn did my band in July 09. I didn't have to get referred to him specifically by my primary physician, just a referral for a lap band. You don't need to go to a doctor affiliated with him, just make sure your insurance covers him. My insurance at the time (Aetna) just required that I use a Center of Excellence, which he's affiliated with, St. Bernadine. I started seeing Dr. Krahn in September 2008, and I didn't have any of the problems the other posters have encountered.Good luck!