Our Leaders


Meaningful research at multiple major pediatric trauma centers takes skilled leadership. Meet the physician leadership team of the ATOMAC+ Pediatric Trauma Research Network.

David Notrica, MD, FACS – President
David Notrica, MD, FACS – President Phoenix Children's Hospital
Dr. David Notrica is a native of Atlanta, Georgia. He graduated Cum Laude from Duke University in 1988 and Emory University School of Medicine in 1992 where he was class president and a member of the Alpha Omega Alpha ... Read More
Robert Maxson, MD, FACS – Vice President
Robert Maxson, MD, FACS – Vice President Arkansas Children's Hospital
Dr. Maxson received his undergraduate degree from Texas A&M University, his M.D. from the University of Texas Medical Branch at Galveston, and completed a surgical residency at UAMS in 1996... Read More
Jessica Naiditch, MD – Secretary
Jessica Naiditch, MD – Secretary Dell Children’s Medical Center
Dr. Naiditch was born and raised outside of Pittsburgh, PA. She received her Bachelor of Science in Biology from Carnegie-Mellon University in 2003. She completed her general surgery residency at ... Read More
Karla Lawson, PhD, MPH – Treasurer
Karla Lawson, PhD, MPH – Treasurer Dell Children’s Medical Center
Dr. Karla A. Lawson, PhD, MPH is the Director of the Dell Children’s Trauma and Injury Research Center and an Associate Professor of Surgery and Perioperative Care at the University of Texas-Austin Dell Medical School... Read More
Jeremy Johnson, MD, FACS, FAAP
Jeremy Johnson, MD, FACS, FAAP Oklahoma Children’s Hospital at OU Health
Jeremy Johnson, MD, FACS, FAAP, is an Associate Professor in the Pediatric Surgery section of the Department of Surgery at the University of Oklahoma. He is the Pediatric Trauma Medical Director... Read More
Mark Ryan, MD, MSPH, FACS
Mark Ryan, MD, MSPH, FACS Children's Medical Center Dallas / University of Texas Southwestern
Mark L. Ryan, M.D., M.S.P.H., FACS, is an Assistant Professor in the Department of Surgery and the Assistant Director of Pediatric Trauma at UT Southwestern Medical Center... Read More
Regan Williams, MD, MS, FACS, FAAP
Regan Williams, MD, MS, FACS, FAAP Le Bonheur Children’s Hospital
I am a pediatric surgeon with a clinical and research focus on pediatric trauma. I have been the Trauma Medical Director at Le Bonheur Children’s Hospital for 5 years... Read More
Katie Russell, MD
Katie Russell, MD Primary Children’s Hospital
Dr. Russell stands at the forefront of pediatric surgery, specializing in neonatal and pediatric conditions treated with minimally invasive techniques. As a leading figure at Primary Children’s Hospital ... Read More

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