There are schools which allow DO to MD transfers, but rarely and these are made on a case by case basis and not as a matter of policy, therefore it will be difficult for you to find them out on a bulletin board. The best way for you to find a school who will do this for you is to call the Admissions office of the schools you are interested in. It only takes a minute and some $$$.
I know that BU has done so in the past. There are at least a half a dozen others, but I do not remember which ones they are off hand.
In general, only private schools take transfers from out of state. Also, you need to have the blessing of both schools to achieve this, so tread cautiously as you do not want to screw yourself at your present school. As you imagine, your reasons do have to be compelling and verifiable as others have stated in this thread.