https://en.m.wikipedia.org/wiki/Flexner_Report
This 1910 report basically said too many doctors were being trained. As a result, women were banned from medical schools and about half of medical schools were closed down. Now each doctor could make far more money on average.
My suggestion to fix healthcare is to remove regulations limiting the number of students training to be doctors each year and remove practicing requirements. We especially should dump the entire patent system.