Juliana Tolles, M.D, M.H.S. is a Medical and Statistical Scientist for Berry Consultants. She is an Assistant Professor of Emergency Medicine at the David Geffen School of Medicine at UCLA and a core faculty member for the Harbor-UCLA Emergency Medicine residency program. Her academic research interests include emergency medical services, resuscitation medicine and trauma care. She has authored several reviews for JAMA on statistical methodology and has lectured nationally on research methodology for the Society for Academic Emergency Medicine Advanced Research Methodology Evaluation and Design (ARMED) course. She is also a co-investigator for the Strategies to Innovate Emergency Clinical Care Trials (SIREN) network Southern California site.

Dr. Tolles attended college at Harvard University and medical school at Yale University School of Medicine, where she also received a Master of Health Sciences and completed a Doris Duke Fellowship in clinical research. She completed both her residency in emergency medicine and research fellowship at Harbor-UCLA Medical Center in Los Angeles.