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Emergency Services

Sean W. Marquis, MD, MPH, FACEP, FAEMS, NRP

Emergency Medicine


American Board of Emergency Medicine with added certification in Emergency Medical Services

Medical School:

Ross University School of Medicine, North Brunswick, NJ


The University of Toledo, Toledo, OH


Emergency Medical Services: Medical College of Wisconsin Affiliated Hospitals, Milwaukee

Additional areas of special interest include:

  • Emergency medical services (EMS) training
  • EMS ultrasound
  • Disaster medicine
  • Tactical EMS

More information:

As an Associate EMS Medical Director and MD-1 field response physician for Mercyhealth, Dr. Marquis has the following community roles :

  • Medical team manager of the WI-TF1 Urban Search & Rescue Team
  • Medical officer of the WI-1 Disaster Medical Assistance Team
  • Member of the Wisconsin EMS Physician Advisory Committee
  • PHTLS, ATLS, PALS and ACLS instructor

Get to Know Your Provider

VIDEO: Sean Marquis, MD, MPH, NREMT-P – Emergency Medicine, Emergency Medical Services Traning

"Great doctors possess empathy and offer compassion. My previous experience as a paramedic and ED technician help me appreciate what a patient and their loved ones experience surrounding an emergency. My goal and commitment is to address all aspects of a patient's well-being and improve health outcomes for the community."