I am finishing up my MD at Michigan Med and my MBA at Wharton. I applied to Ross (Michigan), Harvard Business School, and Wharton. Lucky enough to gain acceptance at all three.
HBS would have required me to take two years off, while Ross and Wharton could be done in just one additional year. Also, Wharton gave me the most money, so it was definitely the cheapest option. In addition, I personally feel that Wharton's healthcare management program is the best program of its kind. Wharton requires 19 course units to graduate, so I took more credits than the average student to finish four semesters of work in three semesters. My schedule: first 3+ years at Michigan, 4th year at Wharton, 5th year fall finishing med school, 5th year spring back at Wharton.
I did a summer internship at McKinsey between 4th and 5th year, which was excellent. However, I want to do a residency, and I just matched into ortho at a great place.
I firmly believe that my med school background is the main reason I got into Wharton and HBS. Also, the MBA really set me apart in residency interviews. Many programs are looking for business-minded students who will be leaders in a post-reform setting.
I had no prior business experience, and I did have a very strong GMAT score. Do not get trapped into thinking that you have to stay at your jhome institution for business school. It can be done elsewhere, but it does require tedious planning. The support I received from Michigan Med has been incredible. PM me if you have any questions.