I suppose so, but I doubt it'll help you.
I could be wrong, but i believe the point of trying to get minorities into medicine is to serve the large communities of black/hispanic citzens that are often neglected or receive substandard care.
So, yeah. there probably aren't a lot of romanian applicants...but there aren't large populations of underserved romanians floating around the US either, so I don't think it matters. It might be a unique characteristic that sets you apart, but I don't think it will give you any specific consideration.
but that's just my two cents.