I would rather that you had you medicines, allergies and past medical history listed in your phone or wallet than ICE. Your relatives are going to find you regardless and everything is going to be all right. I don't need ICE to treat you and quite frankly I'm done with making phonecalls after few incidents last month. But my opinion is only from prehospital point of view...
Now my billing department would be more than happy to have any leads on where to start as far as collecting for my services goes therefore they would love to have some contact info. So in conclusion all the advances are never about patient care but about billing and liability.