I had to think about this for an embarrassingly long time before I realise this was America and they don’t have the NHS. In the UK you should absolutely provide your identity to the hospital, so it can go on your medical record.

Out of pocket visit to the Dr, about $15-$20 Urgent care, $25 -$75 Emergency room, $100-$350

These are JUST FOR SHOWING UP AND HAVING INSURANCE, WHICH WE PAY $1000 MONTHLY. The rest of the bill is charged once you leave, mostly 50% of the remaining services.

Most people with work insurance are paying 40-50 percent, and their cost as an employee is calculated as their wages plus their benefits.

Mono swelled my throat shut a while ago. Urgent care sent me to the ER. ER looked at my throat, said they can’t help Mono. It cost $780 and 6 hours to find out they can’t help me.
I once paid 2000 for some tums and a “sorry we can’t do anything”
Those costs are bullshit. The cost of the ER used to be much less if you got a referral. Also, I bet most of that is lab work.