Emergency medicine has evolved from a location, with variably trained and experienced providers ("the ER"), to a discipline with a well-defined knowledge base and skill set that focus on the diagnosis and care of undifferentiated acute problems.(1) The importance of rapid diagnosis and treatment of serious conditions (e.g., myocardial infarction, stroke, trauma, and sepsis) has made timeliness not simply a determinant of patient satisfaction but also a significant safety and quality concern—delays in care can be deadly.(2) Emergency physicians (EPs) have identified delays caused by crowding fr