About Me

President of the Professional Staff at OHSU Healthcare

Dr. O John Ma was Professor and Chair of Emergency Medicine at Oregon Health & Science University from 2007 until 2019. Dr. O John Ma was President of the Professional Staff at OHSU Healthcare from 2011 to 2013. Dr. O John Ma was the CEO and Co-Founder of Innovative, Disruptive, Emerging Applications in Emergency Medicine (IDEA-EM). Dr. O John Ma has edited 20 reference textbooks, including Ma and Mateer's Emergency Ultrasound and Tinitnalli's Emergency Medicine, both of which have been translated into more than 10 languages. The emphasis of Dr. O John Ma's research has been on the use of ultrasonography in the identification of injuries in trauma patients. He has served on the boards of directors of the American Board of Emergency Medicine and the Society for Academic Emergency Medicine. In 2005, he earned the SAEM Excellence in Ultrasound Education Award, as well as four Teacher of the Year accolades.

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