Same in France, I guess the US is structured differently but overall it's probably the same amount of years. I doubt they study more than 6 or 9 years after high school or otherwise it's a bit too long.
Post-high school schooling for a standard family doctor (one of the lowest paid doctors):
4 years bachelors + 4 years medical school + 3 years residency = 11 years post-high school education.
Ah yeah, there's maybe something wrong there then, it's a bit too long I think. For a standard doctor, it's 9 years in France and it's already quite long.