It depends on why it matters to you. If you want to go to him for therapy and have insurance, they might not pay and you might not be able to go to him. If you're paying for it yourself you can do what you like, but you might want to ask him why he isn't liscensed. If you have a complaint about him, that would be a different matter.
<font color=orange>"If we are going to insist that people pull themselves up by their own bootstraps, we must ensure that they have boots."</font color=orange>