There won’t even be enough foreign born/educated doctors to fill the gap. What you will end up with has already begun - clinics staffed by Physician’s Assistants who open up their computer, enter your name, all the symptom information you provide and out pops treatment guidelines and a list of meds you are allowed to have.
The information you provided is then downloaded into a massive data base of information in Washington which bean counters use to establish allowable levels of care based on your sex, age, race and diagnosis.
It would be racist to replace them with qualified doctors anyway.
The health care system is now a make-work program for Eric Holder's people, just like the public "education" system and the United States Postal System before it.
Reparations!