When picking somebody to do work, you get good people and bad people. There is no substitute for getting references from satisfied customers, preferrably people you know
I can see US practitioners opening offices in Mexico, where they would be immune from US malpractice laws and regulations, and in exchange offering lower fees in exchange for that.
The consequence is that in Southern Illinois ALL the babies are born in hospitals in Indiana. Up in the Chicago area heart and other surgeons are rapidly relocating their activities to Gary, Indiana.
Small Indiana towns that would ordinarily not be able to justify the expense of a hospital, have new hospitals, and so on.
Again, you do not need to go to Mexico to check out this phenomenon.