Look into . . . (Score 2, Informative)

clincal informatics or biomedical informatics. Both of these fields are in dire need of people with a combination of medical and cs backgrounds. My suggestions would be to look at Vanderbilt's biomedical informatics program . You would only need a few pre-reqs and it leads to a M.S. or Ph.D in the field. Further, they have a program that is specifically tailored for a M.D. getting into the field. Stanford, Utah, and Columbia round out the top schools in this field. Further, there is no shortage of jobs as it is still in its infancy!