And since this is an advice forum, I’ll post the advice I usually give which is this:
Your son should be thinking about why an M.D? When a lot of HS kids think of a career in medicine it becomes “I’m pre-med!” and happily embark on a track that will take 11+ years of school/training plus enormous debt. Doctors are far from the only ones in the health field that help people. Physical therapists, radiology techs, nurses, speech pathologists, physician assistants, nurse practitioners, to name but just a few. as you can see on http://explorehealthcareers.org Unless he’s carefully considered the alternatives and has spent time actually working in a health care setting (which is an unwritten requirement to get into med school and is explicitly required for some other medical fields) its better to think of him as interested in exploring a career as a doctor rather than someone who has already made the decision.