Also this isn't going down to your corner liquor store and flashing your drivers license... that thing is going to get scanned etc.
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Actual protip: If you're uninsured and need care they legally can't turn you away at an ER. They have to provide the healthcare to get you stabilized regardless if they're going to be able to bill for it or not... which ironically this is a big part of why the insured end up subsidizing the uninsured at the hospital.
Also, if this ends up being you - don't sign anything until you're in the right mind to sign something. They're going to try to pin you to bill your ass off one way or another and if you're half way through a heart attack or something do not sign anything until you can 100% understand what you're legally agreeing to.