Heart failure (HF) is a major public health problem and a leading cause of hospitalization and health care costs in the United States. It is the most common principal discharge diagnosis among Medicare beneficiaries and the third highest for hospital reimbursements. Up to 25 percent of patients hospitalized with HF are readmitted within 30 days. In an effort to reduce the frequency of rehospitalization of Medicare patients, in October 2012 CMS began...