Question

How many year will spend in school in order for me to become a doctor

Answer 1

after college about 4-12 years in med school depending on which type of college :)

Answer 2

Traditional track:
4 years of high school
4 years of undergraduate study
- take MCAT to get into med school)
4 years of medical school
- pass your boards to become licensed doctor
Choose specialty and complete residency
Take and pass final boards to practice independently