All Mercy services are open. See safe options for care and the latest COVID-19 vaccine information.
The safety of our patients and co-workers is our priority. In addition to rigorous disinfecting, use of personal protective equipment and social distancing, we are limiting the number of visitors at this location.
See the latest restrictions.
Mercy Hospital South has been a healing presence in the South St. Louis County area for more than 140 years. Today, we continue providing compassionate medical and specialty care on our South County campus, just west of I-270 on Tesson Ferry Road.
We care for patients from St. Louis City and St. Louis County, as well as Jefferson, Franklin, Saint Francois and Sainte Genevieve counties in Missouri; and Monroe, Randolph and St. Clair counties in Illinois. Mercy Hospital South has been recognized numerous times including:
Mercy Hospital South provides all-private rooms and nationally recognized care.
Mercy patients have access to MyMercy – a free app that lets you manage your health and connect with your care team from your computer, tablet device or smartphone at any time. Mercy patients may also participate in national clinical trials through Mercy Research.
At Mercy Hospital South, you have an entire care team bringing a wealth of expertise to you on one campus. Specialty hospital services include:
For every stage of health and life—pregnancy, labor, delivery and beyond—Mercy Hospital South provides the care women need. Our St. Louis County hospital offers:
Beyond childbirth, we offer a full range of women’s health care services, from routine checkups and mammograms to menopause care and surgical procedures.
Our experts help you throughout every stage of your pregnancy.
Mercy Hospital South’s Emergency Department is staffed and equipped to handle emergencies of any level of severity and is the only Level II Trauma Center in South County.
Children receive expert, compassionate care for unexpected illnesses and injuries at Mercy’s South County St. Louis children’s ER. Staffed by a Mercy Kids pediatrician and pediatric trained nurses, our children’s emergency room features a separate waiting and triage area and six treatment rooms with child-friendly décor.
Mercy Hospital South was one of the first hospitals certified by the state of Missouri as a Level One STEMI (ST-Elevation Myocardial Infarction) Center, the highest level of cardiac care available. In addition to the Joint Commission’s Gold Seal of Approval® for Advanced Certification in Heart Failure, Mercy Hospital South has been awarded American Heart Association’s Get With The Guidelines-Heart Failure Gold Plus Quality Achievement Award.
Every minute matters when it comes to stroke. Mercy Hospital South has earned Comprehensive Stroke Center Certification from The Joint Commission. This is the most demanding stroke certification they offer. Mercy South is one of the less than 200 Comprehensive Stroke Centers certified by The Joint Commission in the United States out of more than 5,000 hospitals.
This means Mercy Hospital South provides 24/7 access to life-saving neurological care, with the expertise and technological resources to quickly diagnose and treat any type of stroke within one hour of arrival.
We encourage you to send electronic well wishes to family and friends when you can’t visit the hospital in-person.
To send a message to a Mercy hospital patient, use our online form.