You haven't actually looked at reimbursement rates have you?  Yet in spite of the fact that hospitals receive roughly half of what is billed most hospitals and hospital systems have stout profit margins.  Because health insurance is included in the cost of US healthcare your carve out of an industry that adds zero value to healthcare is telling.  Those who dismiss single payer as being to costly ignore the simple fact that every other industrialized country has adopted the same and pays less than we do.