From what I have generally heard, hospital bills can be negotiated down.
So keep that in mind that although you are paying it off over time with no interest cost, you are also paying off the full amount.
With that being said,
Some people have zero qualms with getting fixed up and paying only 10% of the bill with a big sob story...
However, if you want to support the hospital and the work it does, - not to mention you are pretty wealthy and are easily able to handle the cost - you probably should just pay it off on schedule. Hospitals need money from somewhere, otherwise they have to cater to big donors, which often comes with "strings".