Metropolitan Boston Emergency Medical Services 25 Burlington St, Lexington, MA02420 The Metropolitan Boston Emergency Medical Services (MBEMS) is a group that oversees all state emergency medical…More services. Its office is located at 25 Burlington St. in Burlington. It was designated by the Massachusetts Department of Public Health and offers services to over 2 million Massachusetts residents. It is governed by a board of directors made up of members involved in EMS, hospitals, fire departments and government officials. The group meets quarterly.