Maybe you could ask your infusion nurses for a GI referral? Especially if they are affliated with many different GI's. I asked my nurses about
that once since I was thinking of transferring to another
location at Kaiser. They gave me some good GI recommendations. I know it's a terrible thing that your GI's office did, but on a positive note, maybe it will be the best thing for you and this doctor will have some new ideas to help you fight the battle. Good luck!