It will definatley help you!
I have an MBA and I just matched into a top 10 program this past January. I can tell you that it was the topic of every one of my conversations...in a positive way. All my interviewers wanted to know about the MBA and how I was planning to use it in the future. They were very impressed with the fact that I had an MBA. It did not raise any issues of me questioning another field. Now with healthcare reform and all of these changes in medicine, it is a great asset to have an MBA. In all honestly, medicine is a business. There is a very large portion of medicine that business, insurance, denials, claims, etc. To speak about these issues and demonstrate your knowledge in these aspects will put you way ahead of the game as it will impress your interviewers...since the business aspect of medicine you learn really only after residency. To have such knowledge in medical school is very unique. I suggest doing a part time mba online where you have the flexibility of taking classes, doing homework and exams at your own time. Only then is an MBA really feasible during medical school. You can try to do most of it during fourth year...but you'll be working your ***** off during fourth year while everyone else is chilling...