i've had surgery at mt. sinai and have a doctor there (but i only saw him twice out of necessity b/c i was switching doctors. i won't recommend him b/c he wasn't my top choice and he's was what i like to call an "ibs doctor"..meaning he's good with basic stuff but that's about it). anyone you choose at mt. sinai is excellent, but if you go to their websites you can see which gastros have particular clinical interests.
if you are a patient at mt. sinai, you will have access to the latest theories and treatment ideas. for example, one idea that's gaining popularity is the use of botex injections to prevent further scarring and stenosis. they have all the latest research...mostly because its a teaching/research hospital.
you won't find a doctor who is willing to "look outside the box" at mt. sinai, you're going to find a doctor who is cutting-edge. huge difference..