Must get bachelor's. To have a decent chance to go to medical school, a person needs to get a 4-year college bachelor's degree first (and get good grades too).
Sure... If you work hard, you can do it! High school is just the very first small step to becoming a physician. Going to college & finishing a course of study including 1 year of math, english, physics, chemistry, organic chemistry, & biology...Then getting a good score on the medical college admissions test (mcat) are all necessary. Making sure your background is clear of misconduct is just as important.