It’s hard to say. I do know that once insurance has touched it it’s illegal to discount anything off of it. Or at least that’s what I’ve been told.

Chiropractors are notorious for this (particularly the one I worked for). They loooove adding the “extra spinal manipulation” charge on top of the standard 3-4 regions adjustment. My boss would usually write it off if a patient complained but otherwise would charge everyone that. I could go on and on about the shit they were doing.