I spoke recently with John Bardis, CEO of MedAssets, a healthcare supply chain and revenue cycle management company, about his crusade against the lack of transparency in durable medical devices, contracts for which preclude hospitals from disclosing how much they pay for such devices. Bardis thinks this lack of transparency is the top financial challenge facing hospitals, and there?s precious little in healthcare reform legislation that will shine a light on the murky way device companies keep prices artificially high.