If you wish to obtain surgical/CK opinions, I would suggest checking with Dr. Chang at Stanford and (as to surgery and GK) the House Clinic in L.A. I also understand that the U of Pittsburgh founded GK. While there have been many physicians and centers mentioned, these three seem to come up fairly, if not, most often.
The ANA has a list of criteria that it recommends for the physicians to be considered for your AN. Among other requirements, is that ANs be treated by high volume AN centers (high traffic centers). Check it out. Stanford, House and Pittsburgh are definitely considered high volume centers.
I checked into local physicians in CO. While I had confidence in some, I had no confidence in others. It felt to spotty to me. It meant that teams were likely to have a weak link (again, IMHO). So, I wanted to go to high volume AN centers as recommended.
I hope this helps. Good luck with your decision.