Dr. O‘Brien is a veteran critical care paramedic, EMS educator, and EMS physician. His clinical practice is split between shifts in the Emergency Department and operational medicine/field response. He provides medical direction to Erie Community College‘s EMS training programs and the Niagara County Sheriff‘s Office Emergency Response Team. He responds with the Town of Tonawanda Police Department's Emergency Medical Unit and is the Associate System Medical Director and Flight Physician for Mercy Flight of Western New York. He is a sworn police officer and serves as a law enforcement officer in a Genesee County municipality.

Dr. O‘Brien‘s interests center around prehospital resuscitation, tactical medicine/aggressive deadly behavior attacks, and extracorporeal life support (ECLS). He is a subject matter expert in Emergency Medical Services, aeromedical evacuation/retrieval, and tactical medicine/active threat incidents. He is a frequent speaker on topics such as out-of-hospital cardiac arrest, operational/austere medicine, and the ethics of emergency care. He is double board-certified by the American Board of Emergency Medicine in Emergency Medicine and Emergency Medical Services. He serves on national committees of the National Association of EMS Physicians, the American College of Emergency Physicians, National Tactical Officers Association, Special Operations Medical Association, and the Air Medical Physician Association.

Emergency Medical Services, Emergency Medicine

Physician Gender:

Male