It depends on the state as to whether it is legal or not. From the standpoint of ethics and professionalism it's absolutely wrong, no question about that. Obviously the group that wants to hire the CRNAs is sketchy as hell--they must only care about money and not patient welfare. I feel sorry for any patients who end up going there.
Pill mills, block shops, and now we may have a wave of CRNAs in pain management. Hopefully the insanity will end at some point. Otherwise we may see the end of private practice in pain management, because in general hospitals are far more selective when it comes to hiring clinicians for pain management. CRNAs would have a helluva time getting hired by a hospital to do interventional pain.