In Texas they require you to have 60 college hours form an accredited college to get licensed. It would be best to search and read the state licensing rules for the states you want to practice in. I have listed the rules for Texas below.

§163.2. Full Texas Medical License.
(3) have completed 60 semester hours of college courses as defined under §163.1(11) of this title;

§163.1. Definitions.
(11) Sixty (60) semester hours of college courses--60 semester hours of college courses other than in medical school that are acceptable to The University of Texas at Austin for credit on a bachelor of arts degree or a bachelor of science degree; the entire primary, secondary, and premedical education required in the country of medical school graduation, if the medical school is located outside the United States or Canada; or substantially equivalent courses as determined by the board.

Good Luck hope this helps.