Nope, the guy said that "yes, the appleid is banned, you know why, you breached our T&Cs, no you can't restore it".
He rejected to specify what rule exactly was breached.
I've heard plenty about how HIPAA gets in the way of legitimate sharing with outsiders (e.g. making a common format for medical profile transfer impractical), but I don't recall having heard about it preventing the principal individual from getting answers from their own provider.
Edit: Why in the hell is my iPhone erroneously autocorrecting HIPAA to HIPPA?
Crowd-sourced autocorrect dictionary on display. :\
Realistically corporations are more likely to use less blatantly stupid excuses ("our insurance policy forbids...").