It's one thing to cover insider info, or not leak who tells you something on the inside on a cow, for example if someone shared the building with lucas and leaked it or was a class mate/co worker etc. Yes like a reporter keep your source on the DL
If you are violating HIPPA, you are a bigger cow than Lucas, it's incredibly illegal. I mean I'm talking illegal to the point if you are leaking HIPPA info to troll someone, you'd spend as much time behind bars as Lucas would for finger blasting an 8 year old. So incase the leaker is indeed doing it let that sink in.
Personally I really think it's just gossip and who ever it is, is trying to sound like a big fish in the Lucas troll group/community. The blocking actions add to my feeling on this.
Now devils advocate maybe said person is an idiot in social interactions, and knows someone in the building with Lucas. Lucas has 0 filter so if he forgets to lie or tries to brag he could state things that would be protected other wise, but you indeed have a legal right to expose your own medical info/records.