I was in you Dad's situation almost 10 years ago. I was lucky to have a local URO that while he might not have been a sub specialist in bladder cancer, he knew bladder cancer. I also had a small papillary tumor. He was about 50 and had studied under Dr.Lamm that many of us hold in high regard as one of the pioneers in treating bladder cancer. Check further on this site about these subjects including Dr. Lamm.
Reading your summary I say your Doc appears to be up to speed with this. The only question would be the immunotherapy. This is usually done with high grade tumors or re-occuring low grade tumors and without a pathology report you don't really know which direction to go. This you won't know until the TURB surgery (transurethral bladder resection) and path reports are done.. Do not be surprised if your URO does a second TURB to confirm good margins are done. This is almost always done on high grade tumors as they can be understaged.
After posting all of this, Sloan Kettering is an excellent option. If I had really understood what I was dealing with I would have gone to MD Anderson in Houston as I live about 3 hours from there. I was simply lucky with my guy. If your URO sees a lot of bladder cancer he is probably OK but, if you have doubts SK would be it.
Welcome and post as you go. Someone should be around with some "been there and done that".