It's a minimum of 4 years undergrad and 4 years of med school. Then indentured servitude as an intern, resident, and fellow which can add up to at least 3 years, but usually more than that. As a post-grad you work long hours for usually around minimum wage and doing all of the grunt work so administrators can make boatloads of money. The problem is not physician salaries, it's the leeches that are the middle men of hospital admin and insurance companies.

Same could be said for any doctorate.