Faculty

Professor, Department of Emergency Medicine EMS Section Director, Department of Emergency Medicine

Mohamud Daya, M.D., M.S.
Professor, Department of Emergency Medicine EMS Section Director, Department of Emergency Medicine
503-494-7248 | dayam@ohsu.edu | Link to this profile
Dr. Daya joined the Department of Emergency Medicine at OHSU in 1988 and currently serves as our EMS Section Director. Dr. Daya also serves as the EMS Medical Director for Tualatin Valley Fire & Rescue and Forest Grove Fire & Rescue as well as the Medical Director of Washington County Consolidated Communications Agency. His professional interests include cardiac arrest, emergency medical services systems, international emergency medicine, and time-critical emergencies: AMI, stroke, trauma, travel medicine and occupational infectious diseases. In his free times he enjoys traveling, reading, playing squash and listening to music.
Education
MD Degree: | University of British Columbia, Vancouver, BC, Canada 1984 |
Residency: | Oregon Health Sciences University, Portland, OR 1987 |
Fellowship: | Emergency Medicine, Oregon Health Sciences University, 1988 |
Awards and Recognition
2017 | Ranked 55th in NIH funding for principal investigators in Emergency Medicine research |
2015 | Ranked 49th in NIH funding for principal investigators in Emergency Medicine research |
2015 | Named one of Portland's 2015 Top Doctors in Emergency Medicine - Portland Monthly Magazine |
2014 | Named one of Portland's 2014 Top Doctors in Emergency Medicine - Portland Monthly Magazine |
2013 | Named one of Portland's 2013 Top Doctors in Emergency Medicine - Portland Monthly Magazine |
2012 | Emergency Medicine Chair's Award - Oregon Health & Science University |
2010 | Faculty Clinician of the Year - Oregon Health & Science University |
2009 | EMS Medical Director of the Year - State of Oregon |
2007 | Academic Emergency Medicine Outstanding Reviewer |
2002 | Academic Instructor of the Year - Oregon Health & Science University |
1997 | Fellow - American College of Medical Toxicology |
1992 | Teaching Excellence Award, Emergency Medicine - The Toronto Hospital |
1990 | Outstanding Educator Award, Emergency Medicine - Oregon Health & Science University |

Elizabeth Hatfield-Keller, M.D.
Assistant Professor, Department of Emergency Medicine
503-494-7500 | hatfield@ohsu.edu | Link to this profile
Education
MD Degree: | Oregon Health & Science University, Portland, OR 1993 |
Residency: | Oregon Health & Science University, Portland, OR 1996 |

Jonathan Jui, M.D., M.P.H., F.A.C.E.P.
Professor, Department of Emergency Medicine
503-494-7500 | jui@ohsu.edu | Link to this profile
Dr. Jui joined the Department of Emergency Medicine in 1981. His professional interests include sudden cardiac death, emerging infections, safety in Emergency Medical Services, resuscitation, wilderness medicine, infectious disease, hypothermia. In his free time he enjoys running, skiing, backpacking, hiking, and traveling.
Education
MD Degree: | Wayne University, Detroit, MI 1976 |
Residency: | Internal Medicine-Oregon Health & Science University, Portland, OR 1979 |
Fellowships: | Medicine, Detroit General Hospital/Wayne State University, Detroit, MI |
Disease, Wayne State University, Detroit, MI |
Awards and Recognition
2013 | The Michael Copass Award: Gathering of the Eagles XV - Gathering of Eagles |
2010 | Director's Medal, Department of Health Services, EMS Section - State of Oregon |
2008 | EMS and Trauma System Certificate of Appreciation - Oregon Health Authority |
2007 | Faculty Clinician of the Year - Oregon Health & Science University |
2004 | Certificate of Appreciation - Department of Human Services |
2001 | Public Heroes Award - Multnomah County Health Department |
2001 | Clinical Instructor of the Year - Oregon Health & Science University |
1995 | EMS Medical Director of the Year - Oregon Health Authority |
1993 | Department of Chief's Medal, Department of Health Services, EMS Section - State of Oregon |

Craig Warden, M.D., M.P.H., G.I.S., M.S.
Professor, Department of Emergency Medicine
503-494-4399 | wardenc@ohsu.edu | Link to this profile
Dr. Warden joined the Department of Emergency Medicine in 1996. He currently serves as the Medical Director of the Global Mission Readiness in Clackamas, the Oregon State Urban Search & Rescue Task Force 1 (OR TF-1), Clackamas County (CCOM) Emergency Medical Dispatch and Clackamas County Emergency Medical Services Advisory Council. Dr. Warden is an accomplished author, educator, former paramedic and innovator. Because of Dr Warden's leadership, the paramedics and EMT's with Clackamas Fire District #1 have embraced participation in a national study on cardiac resuscitation, resulting in some of the highest cardiac arrest "save to alive" at discharge percentages in the country. He also implemented the use of a rescue airway as an option for paramedics to secure an airway while performing CPR, now being considered as the standard for Cardiac Arrest care in the Portland Metropolitan area.
Education
MD Degree: | University of Colorado Health Science Center, Denver CO 1988 |
MPH Degree: | University of Washington (Epidemiology), Seattle WA 1996 |
Residencies: | Medicine, Oregon Health & Science University, Portland, OR 1991 |
Pediatrics, Oregon Health & Science University, Portland, OR 1994 | |
Fellowships: | Pediatric Emergency Medicine, Children's Hospital and Medical Center, Seattle, WA 1996 |
Medical Toxicology, Washington Poison Center, Seattle WA 1996 |
Awards and Recognition
2016 | Named one of Portland's 2016 Top Doctors in Pediatric Emergency Medicine - Portland Monthly Magazine |
2015 | Ranked 47th in NIH funding for principal investigators in Emergency Medicine research |
2015 | Named one of Portland's 2015 Top Doctors in Pediatric Emergency Medicine - Portland Monthly Magazine |
2008 | Emergency Medical Services Medical Director of the Year - State of Oregon |
2008 | Clackamas Fire District #1 Meritorious Service Award - Clackamas Fire District |