Get a Masters in Public Health. The doctor treats the individual, which is great. But working in public health, you can have a much more tremendous impact on health at a population level. There's so many different topics in public health, that you can have an entire career and a half just working in different areas. There's a ton of career paths within the field -- research, practice, academia, state and local, federal, consulting, global, etc, just to name a few.

If you pair it with an MBA or MPP or MPA, you can get into healthcare management, too