Sure, but perhaps rendered improperly by the court clerk during his competency hearing.
(Answering from another thread that is now locked)
HIIPA allows patient record transfers with proper law enforcement requests.
However, HIIPA doesn’t apply here, since this is all court-level stuff. If a court orders you to a nut farm, or rules you to be mentally ill/deficient, that’s all that regulation applies to.
A voluntary self-admission to a hospital because you are depressed when your sister died (for example) wouldn’t be a 4473 disqualifier — nor should it be.
His Social Security or UPIN, which you MUST read to the NICS operator, should have eliminated any chance of that.
IIRC, his court paperwork and filing should have included such data and even if the clerk misspelt the name, the number should have sent up a flag.