Mercy Hospital St. Louis Quick Facts

Mercy Hospital St. Louis

615 S. New Ballas Road
St. Louis, MO 63141
(314) 251-6000

Mercy Hospital St. Louis Services

  • Mercy Children’s Hospital
  • David C. Pratt Cancer Center
  • Heart and Vascular Hospital
  • Birthing Center
  • Burn Center
  • Stroke Center 
  • Surgery Center (inpatient and outpatient)
  • Behavioral Health
  • Home Health and Hospice
  • Medical Doctors Building
  • Ronald McDonald House and Family Room

Mercy Heritage

  • 1856: Sisters of Mercy arrive in St. Louis
  • 1871: Sisters turn original school building into 25-bed hospital for women and children known as St. John’s Hospital
  • 1874: St. John’s Hospital becomes a general hospital and serves all
  • 1963: The new hospital, current site of Mercy Hospital St. Louis in west St. Louis County, opens
  • 2003: David C. Pratt Cancer Center opens, providing comprehensive outpatient cancer care
  • 2006: Heart and Vascular Hospital opens, bringing all cardiovascular and emergency services together into one comprehensive facility
  • 2010: Mercy Children’s Hospital opens new pediatric and neonatal intensive care unit rooms
  • 2011: St. John's Mercy Medical Center becomes Mercy Hospital St. Louis
  • 2014: Low-risk Birthing Center run by certified nurse midwives opens

Just the Facts




  • CMS 5-Star Hospital
  • Leapfrog Top Hospital
  • Awarded A Grade for patient safety from Leapfrog - 18 consecutive times
  • Accredited Bariatric Center of Excellence by American Society for Metabolic and Bariatric Surgery
  • Recognized by the American College of Cardiology in the 2021 U.S. News & World Report “Best Hospitals” issue for commitment to hospital care for heart patients.
  • Beacon Award Silver recognizing excellence in the Burn Center
  • Silver Performance Achievement Award by American College of Cardiology for Chest Pain MI registry (STEMI and NSTEMI care).
  • Named AAGL Center of Excellence in Minimally Invasive Gynecology (COEMIG)
  • Named Center of Excellence for OB Anesthesia by Society for Obstetric Anesthesia and Perinatology
  • Validated as a Stage 7 hospital by HIMSS Analytics, a global health care technology market intelligence, research and standards organization, based on the Electronic Medical Record Adoption Model (EMRAMSM)
  • Verified Adult and Pediatric Burn Center, by American Burn Association and American College of Surgeons 
  • Designated Level 1 STEMI Center by Missouri Dept. of Health and Senior Services Time Critical Diagnosis Unit
  • Earned the American Heart Association Get with the Guidelines Resuscitation Silver award
  • Earned the American Heart/Stroke Association Get With the Guidelines® Gold Plus achievement award
  • Earned the American Heart/Stroke Association Target: Stroke Honor Roll Elite Plus award and Target: Type 2 Diabetes Honor Roll


  • The Joint Commission
  • American Society of Gastrointestinal Endoscopy
  • Intersocietal Accreditation Commission for adult/pediatric echocardiography and vascular testing
  • American College of Surgeons Commission on Cancer with commendations
  • American College of Radiology for breast ultrasound
  • National Accreditation Program for Breast Centers
  • Society of Chest Pain Centers for heart failure
  • American Academy of Sleep Medicine
  • Undersea and Hyperbaric Medical Society
  • American Institute of Ultrasound Medicine for Fetal Echocardiography
  • American Association of Cardiovascular and Pulmonary Rehabilitation 

By the Numbers (Fiscal Year 2021)

  • Total Beds: 859
  • Clinic and Outpatient Locations: 83
  • Co-workers (hospital only): 7,459
  • Mercy Clinic Physicians: 616
  • Acute Inpatient Discharges: 42,373
  • Surgeries (Inpatient and Outpatient): 33,036
  • Emergency Visits: 79,195
  • Births: 8,869
  • Outpatient Visits: 1,050,613
  • Traditional Charity Care: $38 million
  • Unreimbursed Medicaid: $75 million
  • Other Community Benefit: $15 million

About Mercy

Mercy, named one of the top five large U.S. health systems for four consecutive years by IBM Watson Health, serves millions annually. Mercy is one of the nation’s most highly integrated, multi-state health care systems, including more than 40 acute care, managed and specialty (heart, children’s, orthopedic and rehab) hospitals, convenient and urgent care locations, imaging centers and pharmacies. Mercy has 900 physician practices and outpatient facilities, 2,400 Mercy Clinic physicians and more than 40,000 co-workers serving patients and families across Arkansas, Kansas, Missouri and Oklahoma. Mercy also has clinics, outpatient services and outreach ministries in Arkansas, Louisiana, Mississippi and Texas.

Media Contact

Bethany Pope
St. Louis, St. Charles, St. Louis - South, Troy, Festus
Page: (314) 251-6000