What medical degree only takes 2 years after a bachelors degree?

There isn't a standard medical degree that takes only two years after a bachelor's degree. Medical degrees (like MD or DO) typically require four years of medical school *after* completing a four-year bachelor's degree.

Some accelerated programs might *slightly* shorten the overall timeframe, but not to the extent of only two years post-baccalaureate. Anything claiming a two-year medical degree after a bachelor's is highly suspect and likely not a legitimate medical degree program leading to licensure as a physician.