I can’t speak to NC. Assuming by NY your including NYC then this is probably your best bet as there are probably more Dommes there than any other city. I’m sure on Eros, tryst etc you can find someone who aligns with your interests

In OH, Columbus has a few options. Cleveland is a bit more limited. I would recommend Mistress Noel Knight. http://mistressnoelknight.com/ I’ve seen her a few times, not sure about medical but your other interests I think align well with her

In Pittsburgh, Mistress Carissa Montgomery is great. http://mistresscarissa.com/index8.html