A quarter million US dollars. Of course the hospital never expects to receive this amount of money. Either they will negotiate it down for uninsured patients, or they will accept a lesser amount from the insurance company. Insurance companies like this over representation of costs because: 1. If you have a percentage copay (edit: "coinsurance"), say 10%, they will tell you to pay $25k because it's 10%, but they might…
Coinsurance is calculated on the contracted amount / allowable amount. The latter is the negotiated amount that insurance will pay
SOURCE: Medical billing experience
(Edited for typos).