Mercy Emergency Department - Mercy Hospital St. Louis

Part of Mercy Hospital St. Louis
615 S. New Ballas Road
St. Louis, MO 63141

Main Entrance: Entrance in rear of hospital

Phone: (314) 251-6090
Fax: (314) 251-1601
Open daily 24 hours
Services are provided by Mercy Hospital St. Louis Learn more »

Mercy's Emergency Department handles a major share of the area's trauma cases and provides medical direction for six fire/ambulance districts. Our Emergency Department staff diagnoses and treats major and minor traumatic and medical emergencies, providing advanced care 24 hours- a-day, every day.

The Emergency Department features:

  • An Adult Emergency Department, with its own triage and waiting room, 24 adult treatment rooms and six adult trauma rooms
  • A six-room area designated for minor injuries and illnesses
  • State-of-the-art treatment areas and centrally-located imaging services
  • A large ambulance bay with capacity for five ambulances
  • A large helipad with space for several helicopters

The Mercy Hospital St. Louis Emergency Department is the only Level I (highest level) Trauma Center in St. Louis County. 

The most recent addition to the  Mercy Emergency Department is the Clinical Decision Unit. This new 16-bed unit offers 24-hour care for patients as they are awaiting a clinical decision about whether they should be admitted to the hospital or be released to their homes. Often, clinical staff are waiting for test results before a final decision is made about admitting a patient to the hospital. The patients stay in this area for a short time - usually under 24 hours. The new unit is directly above the Emergency Department, on the second floor of the Heart Hospital. The staff caring for the CDU patients are the same level emergency physicians, nurse practitioners and nurses who care for patients in the ED.

Mercy Kids ER at Mercy Hospital St. Louis

Our dedicated Mercy Kids ER at Mercy Hospital St. Louis is 100% focused on emergency care for kids. The pediatric ER features its own triage space, waiting room and 13 treatment room designed with families in mind. A team of pediatric emergency medicine specialists, board certified pediatricians, pediatric hospitalists and pediatric nurse practitioners enable us to provide expert, child-focused care for unexpected illnesses and injuries. Child life specialists are also available seven days a week to help kids feel less fearful and anxious. If your child needs to be admitted to the hospital, Mercy Children’s inpatient care is just an elevator ride away.

Meet Our Team