I had a stroke (while my mom and I were driving past the hospital) and I had no insurance. They saw me immediately when my mom pulled in to the ER. Came out with a wheel chair, took me right to an ER room, doctor saw me immediately. Had every test you can imagine (including angiogram) and was in ICU for a few days (in the hospital for a week total).
They did not ask about my insurance until the day I checked out. They saved my life. They also wrote off most of the hospital bill (doctors didn't but they made monthly payment arrangements). This was a private hospital (Saint Elizabeth's in Lincoln Nebraska). To this day I owe that hospital my life. We have donated money in years since but I could never repay what they did for me.