Actionable advice: check if your employer-provided healthcare is a self-funded insurance plan or a fully insured plan. And then look up the relevant consumer protections in your state for that type of plan.
Also, in case you're wondering what the hell all those hospital administrators are dong, the answer is "shaking down your employer and screwing you over":
> In a statement, St. David’s HealthCare defended its handling of Calver’s bill and sought to blame the school district and Aetna for offering such a narrow network.
>“While we did everything right in this particular situation, the structure of the patient’s insurance plan as a narrow network product placed a large portion of the financial responsibility directly on the patient because our hospital was not in-network,” the hospital said.
> WellRithms reviewed Calver’s bill in detail at the request of Kaiser Health News and determined that a reasonable reimbursement would have been $26,985. That’s less than half what Aetna paid.