It's all a charade. If you have insurance those numbers just are about meaningless. They already have a contract with your insurer to pay a fraction of each of those and call it a day (and they know what those rates are). All it does is give them an insanely inflated "MSRP".
And I don't even see a ER physician charge yet (likely coming in an entirely separate bill)
btw, that $1700 Chest X-ray will likely be reimbursed about $25
The whole medical billing system needs to DIAF