4 years college, perhaps 4 years of medical school, which may include the specialty area (i.e., gynecology, opthamalogy, obstetrician, etc.), residency….
At least 8 years, Ask you family doctor, He or she will be happy to advise you. Oh and keep your grades VERY high.
4 years undergrad
tests & acceptace to medical school
4 years medical school (when you graduate here you are “Dr. Smith”, but cannot practice.
acceptance to residency program
3-5 years internship/residency
THEN you are a doctor who can practice!