It certainly wouldn't be difficult for healthcare providers to establish a set price for procedures that took contingency circumstances into account.  The Oklahoma Surgery Center does just that to account for potential emergencies that might take place during operations, for example, and there are certain cash-only doctors who list their prices.  
As you point out, there is a parasitic relationship between providers and insurance companies, but honestly this is an issue that could easily be solved with existing anti-monopoly legislation.  The contention that a whole new law like the ACA and a wide-ranging bureaucracy to implement it was needed was fallacious from the beginning, and the GOP's proposed law just keeps the charade alive.