Emergency department (in a health care facility) is a section of an institution that is staffed and equipped to provide rapid and varied emergency care, especially for those who are stricken with sudden and acute illness or who are the victims of severe trauma. This study analyzed the disease pattern of patients presenting to the emergency department of a tertiary care insurance based hospital in Delhi. The results showed maximum patients attended were under the Medicine and Surgery discipline. A large proportion of these patients were non emergency cases that could have been managed in the Outpatient Department (OPD). As the cause of overcrowding of the hospital emergency department was attributed to the number of people presenting to the emergency department with non emergent problems it discusses the steps that can be taken to better channelize the use of emergency medical services.