I'd say that it doesn't matter if the wages are inflated - as long as the wages aren't deflated, everything will be fine. Even if doctors got paid exactly the amount that a perfectly efficient market would predict, that would still be quite a large amount.
By the way, make sure he talks to a good adviser. To my knowledge, as long as you take certain classes (Calc, O-chem, etc) you can get into medical school without a biological science degree. As for graduate school, my impression is that people in computer sciences are typically very well received in many biological contexts (bio bioinformatics, bio engineering, etc). There are many biologists who can't code and would love a grad student who can. There's a possibility that your friend need not bother switching majors and should just hurry up and graduate, go straight into bio-grad/med
A friend of mine who may want to Earn to Give for the purposes of effective altruism mused 'The wages of American doctors seem inflated right now. I wonder if it is likely that the American health care system will be fixed by the time I am able to work there. If I do go to med school that is.'
Right now, he is an undergraduate student from, and living in, Canada. He is about half-way through a degree in computer science, but he is taking some biology electives. There is a good chance he will switch his major completely to biology, because he no longer believes he wants to become a programmer, and because he is very passionate biology and the study of life, and he would rather go into grad school for biology, or maybe medical school. If he already completed several credits from a previous major, and by December will have done 2 semesters worth of biology classes, I expect it will take him at least another 3 semesters to complete his degree, and/or complete the prerequisites for medical school. If he gets into medical school 2 years from now, it will take him another 4 years of medical-school+residency to be able to practice in the United States, and 2-3 years more than that if he specializes, or goes to a medical school in the Caribbean (where getting into them is apparently easier than mainland medical schools, but to complete the training takes six years). So, it would be at least 6-8 years from now before he is a practicing doctor in the United States.
So, does anyone have any ideas of how to go about the solving the initial problem? What is the likelihood that the wages of American doctors will deflate in the next 6-8 years due to major shifts in how the American medical system is run? What sorts of changes ought one be looking for to answer this question: political, bureaucratic, technological, or cultural change?
edit: my friend in question has expressed interest in this thread, so if you want to make recommendations about or discuss medical schools in the United States vs. other places, or in general, or about entering the medical profession vs.s other jobs, go ahead. Such valuable information would be appreciated. I don't yet know if he himself will participate in this discussion.