In SOME states (not all) ER trips are free if and only if you don't have insurance.
In states where this doesnt exist many people give phony names and addresses. Hospitals expect this and it's in their budget. NOT that it's okay, meaning that other things cost more because of x million that they budget for no name ER visits.
ERs CAN AND DO turn people away.
The ONLY ERs required to take anyone regardless of their ability to pay are 'County' hospitals. They're federally funded. They have huge waiting times (hours or even days for non life threatening emergencies), and are also usually the local trauma centers. That they are required by law to take everyone does not mean they won't bill you (or attempt to), and send you to collections. It PURELY means that they won't send you away if you don't have an insurance card or credit card.
Most hospitals are private. Many USED to be 'community hospitals', but those mostly went bankrupt and were bought by insurance companies. ANY private hospital can refuse treatment. I was fortunate enough to work in a community hospital (sand rules as a county hospital, they take everyone), and we got a LOT of people who'd been sent away from private hospital ERs, and a LOT of people died (bad outcome in hospital speak) who WOULDN'T have if the private hospital (group health, eyc) had at least stopped their freakin bleeding when they'd gone there first!!!!
As an aside, I was up north fishing when my then boyfriend got stung by a dogfish. Argh. So we went to Valley Hospital in Monroe WA (effers). We had insurance, so we were fine. But while boyfriend was being treated a migrant came in HOLDING HIS FOOT. He was turned away. Myself and another patient (off duty cop) caught up to him in the parking lot. I did a tourniquet on his leg (which he wouldn't have lost if I hadn't done it, but he was bleeding out), and the cop got us to County Hospital ALMOST 2 HOURS AWAY.
He lost his leg (I had to do a 'crunch' tourniquet, because he couldn't lose any more blood and cop and I didn't have fluids, much less blood or plasma!), but he lived.
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If you read the patient rights list on the back of exam doors... You'll see privately owned hospitals reserve the right to refer you to another facility. They don't say they'll get you there, or treat you until you're stable.
Some (I don't know nationwide stats) have a policy to stabilize a patient before 'referring' them. This varies a GREAT deal, and depends a lot on the docs and nurses on duty. Dude with a bag on his stump was 'ambulatory', and Valley was being staffed by inhuman maggots that night, so off he went.
Similarly, a lot of ambulances are private, and won't pick up an uninsured patient from an ER who is being 'referred'.
Some private hospitals with 'liberal' policies will stabilize, others don't care as long as you don't die on property.
That said... MANY private hospitals (church based, childrens, etc), will treat anyone regardless of their ability to pay. And SOME docs and nurses will risk their licenses to treat a known uninsured case. Most don't.
Nearly everyone in healthcare that I know HATES the insurance game. Because people die.
The 'pre existing condition' part is esp bad, because if someone has a king term illness and is the primary... They often lose their insurance. My good friend in oncology says at least 1/4 of her patients get 'dropped' mid chemo or radiation (and subsequently die)... Because they got cancer, lost their jobs, and as such lose their insurance. Can't afford COBRA, because they can't work!!! Nowhere near enough funding in Medicaid or their previous years tax return is used and too high. Then précis ting conditions keep them from being able to get new or be added. Some oncology depts won't even treat unless you can prepay these days, purely because this is so freakin common.
Sorry. Our healthcare system is JACKED. No one hates it more than those who have to watch needless deaths. I'll never understand the minority if HCPs (there's always 2 or 3 in every hospital) who don't give a rats patoot. The only thing I can think of is that they got into medicine for the money.
But yeah... In some states, ERs are free. And in ones that aren't, people give ERs fake info.