Try this link to the American Obesity Assocation, clicking on the button for finding a doctor:
I saw a great interview with Dr. Mary Vernon, conducted by Dr. Eenfeldt when she was president of this organization. Dr. Westman succeeded her as president, so I think they are solidly keto-friendly.
Don’t go to the society of bariatric surgeons; they promote surgery as the only real cure for obesity. They just had Kevin Hall giving a major lecture at their recent annual convention, so that gives you an idea. (He had a fight with Gary Taubes about a study NuSi wanted to fund, so he is now firmly in the “carbs are really good for you” camp.)