In 2013, nearly 900 Medicare beneficiaries were discharged from three Lancaster County hospitals after having major joint replacement surgery. Medicare ultimately paid the hospitals — Lancaster General, Ephrata Community (now Wellspan Ephrata Community) and Lancaster Regional Medical Center — all roughly the same amount for the procedure: between $9,500 and $10,500. But the amount the hospitals had asked the federal government to pay varied wildly. At Lancaster General Hospital, the county's largest, the average billed amount was just less than $35,000. At Ephrata Community, this "average covered charge" — akin to "list price" — was $37,574.