Looks like the tag has all the information I'd care about most from the hospital side of things. Having name/date of birth is very helpful since it lets me pull your medical record if you've been seen at our facility before. One thought is to have a secondary contact in case your wife is unavailable.

Mark, if I had a patient who can't answer questions but had a thumb drive that looked like it contained medical information, I'd plug it in. I wouldn't tell IT though!