Another weird situation, a different specialty? If you are an IMG or something doing a domestic rotation unrelated to your field you could consider contacting them saying you are in town, but do NOT expect them to make a special interview day just for you. They might allow you to come for a scheduled interview day, or nothing at all. And that assumes your unrelated rotation would even allow you a day or two off to interview, which might be unlikely making this entire post moot.
If you are applying into multiple specialties and that's why you are doing this rotation, I absolutely wouldn't contact them as they wont think you are serious about their field.