N. Cypress Med. Ctr. Operating Co. v. Aetna Life Ins. Co.

DON R. WILLETT, Circuit Judge:

*468 Under Aetna's insurance plans, patients are responsible for a portion of their bills. That is not to say insurance companies are off the hook: They cover the remainder. But how much is Aetna obligated to pay for medical services provided to its members by an out-of-network hospital?

Houston medical services provider North Cypress Medical Center Operating Co., Ltd. and North Cypress Medical Center Operating Co. GP, LLC (collectively "NCMC") alleged Aetna underpaid out-of-network providers like NCMC in violation of the Employee Retirement Income Security Act of…