Using data from over 300,000 visits to an emergency department (ED), we study the accuracy of gatekeeping decisions (admission to the hospital or discharge home) and the effectiveness of a second gatekeeping stage (a clinical decision unit (CDU) in our context) at reducing gatekeeping errors....

Continuity of care, defined as an ongoing therapeutic relationship between a patient and a physician, is a defining characteristic of primary care services. However, arranging a consultation with one's regular doctor is increasingly difficult as practices seek to improve daily throughput to...

While medical research has addressed the clinical management of chronic opioid users, little is known about how operational interventions shortly after opioid initiation can impact a patient's likelihood of long-term opioid use. Using a nationwide US database of medical and pharmaceutical...