I second the Harborview Medical Center in Seattle, Washington one!

It has an excellent Burn Unit that you should look into. I'm not sure of the pay rates or anything like that as I'm not employed by them but my daughter went there years ago for care, and still does for follow-up surgeries, etc.
Another one you might check out is Shriners Hospital for Children in Spokane. They, too, have some treatment and care for Burn survivors.
Good luck in your search!