Hi Sbhaskar,
Thanks for writing in and sharing your interesting background. I agree there are aspects to your profile that are a bit unusual but those can become material for good application essays. Make sure you present each step as having a logical connection to the next step, and then show why an MBA is right next step in this progression for you.
Your work experience overall is strong though, and I think you could put up a competitive application at most schools. Stanford will still be a reach but the others are in range. As for the age issue, check out our blog post on how to address this:
http://www.mbamission.com/blog/2009/12/ ... m-too-old/Lastly, I don't think your work with NIH will have much of an impact on the admissions' decision.
Best of luck,
Daniel Richards
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