All doctors depend on board Board Certification now in order to get paid by Insurance or to have hospital privileges. Say something “inappropriate” and lose that cert. One can always get certified by Boards that are every bit as professional as the accepted boards but those boards have may not stealth certified by the HMOs that run medicine now. Almost all doctors are effectively employees of Big Med and except for the few top docs who work for the very wealthy and those who have wisely moved off shore, and they have to toe the line to keep their practices.
The local Việt Kiều community 20 to 30 years ago sent many of its sons and daughters to med school and produced many MDs and DOs. 10-15 years ago the med school bound began to more and more divert to the auxiliary med fields, ex ray tech, Respiratory therapy, etc. They saw the way things were going for MDs and went where the net income was just about as good without all the government and paper hassles and liability insurance. The present generation seems to be avoiding the medical field altogether. Some of the doctors I know from that first generation have gone back to school for the auxiliary specialties to get out of the government clamps.