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.
The emergency room at Mercy Hospital Jefferson is here to serve you in any medical emergency with a team of highly-trained doctors and nurses. We are proud to serve the residents in Festus, MO and the entire southeast Missouri region.
Our recently renovated emergency department features 24 exam rooms, and an overflow unit to accommodate at least 10 more patients at any time. The integrated electronic health record system helps safeguard your personal information while ensuring our providers have access to your medical history. This allows for the quickest, most effective treatment.
As part of the Mercy health network, we offer quick access to physicians practicing in specialty areas like orthopedics, neurology, cardiology and others.
Regardless of your emergency, Mercy Hospital Jefferson stands ready to assist you by providing the high-quality care you deserve.
At Mercy, we offer comprehensive services to diagnose and treat a full range of conditions, including: