Sorry, your phrasing made it sound like he was serving time for a case involving you as a victim. If it had been, a call to victim's services would have taken care of the issue, so I believed it was in fact a complete answer.
Rather than contacting the Parole Board, it is usually faster to contact the parole office itself. A parolee
is usually assigned to an office in the city where he lives, so if you have an idea of where he is staying it should narrow it down:
That is the route prosecutors usually take when they are trying to track down a parolee or probationer, rather than trying to go through the prison system. You can try calling the office of the parole board, too, but the regional offices are usually more responsive. They are not under any obligation to disclose the information, but given the nature of your situation they may be more inclined to put you in touch with his officer.
You may also qualify for a civil harassment restraining order. It is similar to a protective order but does not require the kind of domestic relationship that a protective order does. You have to prove that the person's conduct rises to the legal level of harassment. This law outlines the requirements and the procedure:
It can be filed in your local Superior Court