Unfortunately, the hospitals in Maryland are not scored. Maryland hospitals have their own payment system for reimbursement and they're not required to submit data to the Centers for Medicare and Medicaid Services (CMS); therefore, organizations like Leapfrog don't have access to the data. Maryland operates the nation's only all-payer hospital rate regulation system and they're the only state that does not share its' data publicly. There are also some critical access hospitals, specialty hospitals such as children's hospital, and cancer hospitals for which there is insufficient data to assign a score.