I think it depends on the state with that one and their licencing practices. I've gone through it a bit after surguries and mine was always done by licenced professionals through the hopsitals here so I haven't encountered that.

I had one at a well respected physical therapy institute that tried to convert me to some form of 'cult' type of group. It was similar to a meditation cult (TM, SRF). I don't remember the name, but this woman did not last at the institute for long.