so you are looking at about 6 to 12 years AFTER your BA (which is not required, but a good idea to get before starting medical school.

For more details about all these steps, try visiting these websites:

how becoming a doctor works

http://www.howstuffworks.com/becoming-a-doctor.htm

how you become a medical doctor

http://www.drtracey.net/becomingMD.html

Becoming an MD (site of the American Medical Association)

http://www.ama-assn.org/ama/pub/category/2320.html

Doctor of Medicine: Steps to Become a Medical Doctor

http://education-portal.com/articles/Doctor_of_Medicine:_Steps_to_Become_a_Medical_Doctor.html

Hope this helps get you started. Best wishes in your endeavors.