I guess a general IBD for forum would be better place to ask this question, as it seems like you do not need a j-pouch. Nevertheless, Dr Greenstein at Mt Sinai NY and Dr Remzi at NYU Langone are great colorectal surgeons, and could probably help you with your surgeries. If you end up needing to have a j-pouch eventually, they are among the best for it, if you can afford to come to the US.

Thank you for the response, I don't mind paying as money means nothing to me.

I couldn't tell from your post what your underlying condition is, but since you reference a flare, I'm guessing colitis and given the fistula, Crohn's.  Given that, you'd want a very experienced surgeon. Also couldn't tell exactly where you're coming from  

If Cleveland is an easier trip (and staying at the clinic hours before/after or for family can be easier than NYC) the head IBD colorectal surgeon there is another potential consultation: Tracy Hull, MD.  https://my.clevelandclinic.org/staff/704-tracy-hull.

Or in NYC, in addition to those mentioned,  the colorectal surgeons and Inflammatory Bowel Disease docs at Columbia/ NY Presbyterian Hospital are world class. https://columbiasurgery.org/co...viders-and-locations.

There is also a great group at University of Chicago https://www.uchicagomedicine.o...colon-rectal-surgery.  

Hopefully you'll find a system that will work with you as self-pay or who can consult with your local surgeons if that's an option.