Duke no longer has their parapsychology lab. It's now the Rhine Research Center, off-campus and unaffiliatated.
You can study parapsychology as you get your doctorate in some other degree at almost any university. It's just that you have to apply general principles of science to the study, instead of engaging in faith-based golly-gee-ism based on notorious frauds like Uri Geller.
I studied radiesthesia - that's well witching - as an independent study in the Physics department of Defiance College. It was a proper physics project. Witches don't just find places to drill for water; they also find buried water and sewer pipes. My investigation took a look at whether accuracy was affected by depth of the pipes according to the inverse square law, whether it made any difference if the pipe were full or empty, or if there was a fast or slow movement of fluid through the pipe. That's what made it a physics experiment, rather than a parapsychology experiment.
I think a Ph.D. in physics, oriented in parapsychology, would be the start of a really interesting (and perhaps highly lucrative) career.