SSM Health and the healing power of presence

SSM Health St. Joseph Hospital - Lake Saint Louis

100 Medical Plaza
Lake Saint Louis, MO  63367

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Established in 1986, SSM Health St. Joseph Hospital - Lake Saint Louis offers western St. Charles County residents exceptional health care close to home. Our 122-bed hospital is a state-designated Level III Trauma Center, a Level II Time Critical Diagnosis STEMI Center and specializes in obstetric and pediatric care, as well as many other specialties. 

You and your family’s health and continued wellness are our top priorities. At SSM Health, we’re proud to serve our community and help our patients discover a path toward healing. 

Plan your visit to St. Joseph Hospital – Lake Saint Louis

  Visitor Information
SSM Health St. Joseph Hospital Lake Saint Louis Missouri

Expert Maternity Care

Tour our Family Birthsuites

The Family Birthplace at SSM Health St. Joseph Hospital - Lake Saint Louis' labor and delivery unit is the leading provider of Obstetrics and High Risk Obstetrical Care in St. Charles County.

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Considering Joint Replacement?

Request an appointment with an SSM Health orthopedic specialist in St. Louis.

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It's moments like this.

The Healing Power of Presence.

The better we know you as a person, the better we can treat you as a patient.

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Women's Health

No matter what stage of life you’re in, if you’re looking to start a family or seeking general care, we provide comprehensive health care to help you make the most informed decisions.


SSM Health Orthopedics provides a wide range of services that address the prevention, diagnosis, treatment and rehabilitation of musculoskeletal disorders and injuries.

Cancer Care

Whether being tested or facing a diagnosis, your cancer journey is unique. Trust us with your health and we’ll deliver a care plan that cater to your individual health and emotional needs. 


We’re recognized as the area’s model heart care service and the preferred destination for heart patients and the physicians who refer them. Make an appointment with us and find out why.  


We provide personalized, compassionate care for patients from birth through adolescence, including routine well child exams and treatment for childhood illnesses.

Emergency Services

SSM St. Joseph Hospital - Lake Saint Louis is staffed with pediatric emergency specialists from SSM Health Cardinal Glennon Children's Hospital for our youngest patients. Our pediatric emergency department has four private suites for children and their families.

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