Yes...it depends what was filed. If only a child support issue was filed it will go to a child support only magistrate. If both visitation and child support are brought up and filed together, you will be assigned a judge that will decide both.
It is not that it is two different places but child support and visitation are separate issues and you can withhold one for the other... Now...if one parent files for child support..it could go to that part of the courts and then you file for visitation you may have to do it with someone else since it was not filed together. In NY we have some people that only do child support issues and they can them in and out...dealing with numbers and they will not deal with visitation issues, that you need to be assigned to someone who can do both.