Not that they won't hire you, but it is a complete waste of money and time because you're not going to get paid as the same level of a PhD! If you aren't almost completely confident that you're going to be able to practice as a physician in the US after graduating from the Caribbean, then do not do it!What is research at an MD level...?? Unless I'm wrong, you either have a PhD in science for research or you don't. Getting an MD does not mean you are more proficient and should be higher paid in research. This is why people do PhD and MD if they want to do research and practice at the same time.