Interim Department Chair
Professor of Clinical Emergency Medicine
Amy Kaji, MD, PhD
Department Chair Emeritus
Professor of Emergency Medicine-in-Residence
Roger J. Lewis, MD, PhD
Dr. Lewis received his PhD in Biophysics and his MD from Stanford University. He is Chair Emeritus of the Department of Emergency Medicine at Harbor-UCLA Medical Center, Professor of Emergency Medicine at the David Geffen School of Medicine at UCLA, and the Senior Medical Scientist at Berry Consultants, LLC.
Dr. Lewis is a member of the Blood Products Advisory Committee of the US Food and Drug Administration, Center for Biologics Evaluation and Research (CBER) and has served as a member of the Medicare Evidence Development & Coverage Advisory Committee of the Centers for Medicare & Medicaid Services. He has chaired data and safety monitoring boards (DSMBs) for numerous federally-funded, industry-sponsored, and multinational clinical trials. He was elected to membership in the National Academy of Medicine in 2009. Dr. Lewis is a research methodology reviewer for JAMA and an editor of the JAMA series entitled “JAMA Guides to Statistics and Methods.” He has served as a content reviewer for many other peer reviewed journals, and has authored or coauthored over 240 original research publications, reviews, editorials, and chapters.
Dr. Lewis has served as a grant reviewer for multiple federal and international agencies as well as foundations. He is a Past President of the Society for Academic Emergency Medicine (SAEM) and is currently a member of the Board of Directors for the Society for Clinical Trials. He is a fellow of the American College of Emergency Physicians, the American Statistical Association, and the Society for Clinical Trials.
Vice Chairs
Madonna Fernandez-Frackleton, MD, FACEP
Vice Chair, Education
Program Director
Health Sciences Clinical Professor
Andrea Wu, MD, MMM, FACEP
Vice Chair, Clinical Operations
Health Sciences Associate Clinical Professor
Kabir Yadav, MD, MS, MSHS, FACEP
Vice Chair, Academic Affairs
Associate Professor of Clinical Emergency Medicine
Core Faculty
David Burbulys, MD, FACEP, FAAP
Associate Program Director
Health Sciences Clinical Professor
Bradley Chappell, DO, MHA, FACOEP
Medical Director, Emergency Department
Health Sciences Associate Clinical Professor
Ilene Claudius, MD
Director, Process and Quality Improvement Program
Health Sciences Associate Clinical Professor
Ross Fleischman, MD, MCR
Director, Clinical Informatics Program
Health Sciences Associate Clinical Professor
Timothy Horeczko, MD, MSCR, FACEP, FAAP
Associate Program Director
Pediatric Emergency Medicine Fellowship
Associate Professor of Clinical Emergency Medicine
Timothy Jang, MD
Director, Emergency Ultrasound Program
Professor of Clinical Emergency Medicine
Yiju Teresa Liu, MD, RDMS
Associate Director
Emergency Ultrasound Program
Health Sciences Associate Clinical Professor
Adedamola Ogunniyi, MD
Associate Program Director
Health Sciences Assistant Clinical Professor
Patricia Padlipsky, MD, FAAP
Medical Director
Pediatric Emergency Department
Health Sciences Assistant Clinical Professor
Ryan Pedigo, MD
Associate Program Director
Health Sciences Assistant Clinical Professor
Mohsen Saidinejad, MD, MBA, FACEP, FAAP
Director, Patient Experience
Health Sciences Clinical Professor
Shira Schlesinger, MD, MPH
Director, EMS and Disaster Preparedness Program
Health Sciences Assistant Clinical Professor
Manpreet Singh, MD, MBE
Director, Medical Student Clerkship
Health Sciences Assistant Clinical Professor
David Tanen, MD
Associate Program Director
Professor of Clinical Emergency Medicine
Juliana Tolles, MD, MHS
Emergency Medicine Faculty
Health Sciences Assistant Clinical Professor
Kelly D. Young, MD, MS
Program Director
Pediatric Emergency Medicine Fellowship
Health Sciences Clinical Professor
Additional Part-time Core Faculty
Nichole Bosson, MD, MPH
Clint Coil, MD, MPH
Ross Donaldson, MD, MPH, CTropMed
Marianne Gausche-Hill, MD
Robert Hockberger, MD, Department Chair Emeritus
Dennis Hsieh, MD, JD
Sarah Lopez, MD
Shamsher Samra, MD, Ph.M
Denise Whitfield, MD, MBA
Diane Birnbaumer, MD
James Niemann, MD
Clinical Faculty
Lilly Bellman, MD
Jonathan Birnbaum, MD
Manny Celedon, MD
Susannah Empson, MD
Lourdes Escalona, MD
Colin Hoff, MD
Eleanor Oakley, MD
Jonathan Osgood, MD
Neil Patel, MD
Kian Preston-Suni, MD
Charles “Dan” Schnorr, MD
Alyssa Scott, MD
Sonia Simms, MD
Thomas Solomon, MD
Shirley Tung, MD
Joyce Wang, MD
Richard Washofsky, MD
Curtice Wong, MD