T.
My daughters go to preschool at UNT, and they do seem to specialize in play therapy there. In fact, it seems like every year they offer a free course to parents to learn the basics of play therapy. I took it one year (it was once a week, and they offer free childcare as well), it was interesting. I'm not sure who you would call, but you may want to just google UNT play therapy and see what comes up.