I had always assumed the culprit was medical school enrollment. But when I looked into those numbers, I found that they are actually increasing noticeably. Thanks to the opening of new medical schools and expanded admissions at existing ones, enrollment is projected to rise by 30 percent between 2002 and 2017, according to the Association of American Medical Colleges. That’s in addition, mind you, to the swelling number of med students studying abroad, with the goal of eventually practicing in the United States.
It turns out that the real bottleneck is at the post-med-school step: residencies, those supervised, intensive, hazing-like, on-the-job training programs that doctors are required to go through before they can practice on their own.