That is exactly what they do to my friend. The odd part is we went thru 5 airports LAX, JFK, Chicago, vegas and not once did they check his pacemaker ID.
One TSA agent at LAX did tell him can not go thru a certain imaging machine. But that their sis OK for pacemakers. So each airport did not check the ID, but did make him o thru the imager and than a pat down. I am not sure if you do a pat down why you need to go thru the imager??????