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S. Isaacs, M.D.

  • Emergency Medicine


S. Marshal Isaacs, M.D., is a Professor in the Department of Emergency Medicine at UT Southwestern Medical Center. He specializes in emergency medicine and emergency medical services.

Dr. Isaacs earned his medical degree at Stony Brook University School of Medicine, and then completed residency training in emergency medicine at Allegheny General Hospital in Pittsburgh. He received advanced training in prehospital emergency medical services (EMS) through a fellowship at Stanford University, where he served as the Lead Flight Physician for the Stanford Life Flight air medical transport program. 

Prior to joining UT Southwestern, Dr. Isaacs served as the Medical Director for the San Francisco Fire Department and was a Professor of Surgery at the University of California, San Francisco School of Medicine, practicing emergency medicine at San Francisco General Hospital. 

Board certified in both emergency medicine and emergency medical services, Dr. Isaacs joined the UT Southwestern faculty in 2006. 

He serves as the Medical Director for the UTSW/Parkland BioTel EMS System, a consortium of 11 North Texas cities and EMS agencies whose paramedics and EMTs all work under the same treatment guidelines and policies. He is also the Medical Director for the Dallas Fire-Rescue Department and for Parkland Health & Hospital System’s Prehospital Care/BioTel program. He is a senior faculty member in the Emergency Medicine department at Parkland Memorial Hospital. 

Dr. Isaacs’ interests include provider wellness and rehabilitation. He serves as Chair of the Parkland Committee on Practitioner Peer Review and Assistance (COPPRA) and as Co-Chair of the Dallas County Medical Society’s Physician Wellness Committee. His research interests include prehospital emergency medical services, mobile community health care, and cardiac arrest resuscitation. 

Named EMS Medical Director of the Year for the State of Texas in 2017, Dr. Isaacs is a member of the American College of Emergency Physicians, the National Association of EMS Physicians, the Society for Academic Emergency Medicine, the Texas Medical Association, and the UTSW GME Subcommittee on Resident Wellness and Well-being.

Education & Training
  • Medical School - SUNY Stony Brook University (1983-1988)
  • Internship - Allegheny General Hospital (1988-1990), Surgery
  • Residency - Allegheny General Hospital (1990-1991), Surgery
  • Fellowship - Stanford University (1991-1992), Emergency Medicine
Professional Associations & Affiliations
  • National Association of EMS Physicians (NAEMSP) (1991), Member
  • Society for Academic Emergency Medicine (SAEM) (1992), Member
  • American Medical Association (AMA) (1992), Member
  • American College of Emergency Physicians (ACEP) (1992), Member
  • U.S. Metropolitan Municipalities' EMS Medical Directors Consortium (1998), Member
Honors & Awards
  • The Michael Keys Copass Award, Gathering of Eagles The EMS State of the Sciences, 2006
  • Special Recognition Award, Dallas Fire-Rescue, 2014
Books & Publications
  • Prehsopital Emergency Medical Services
  • Mobile Community Healthcare
  • Cardiac Arrest Resuscitation