Attending Physician
Assistant Professor of Clinical Pediatrics, Keck School of Medicine of USC
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Margaret Trost, MD, is an Assistant Professor in the Division of Hospital Medicine. Dr. Trost is a passionate educator. She has been an instructor for the USC Keck School of Medicine course "Introduction to Clinical Medicine", which involves teaching the art of the physical exam and history taking to junior medical students, since 2011.

She supervises senior medical students, residents, and fellows as they care for pediatric inpatients at Children's Hospital Los Angeles. Dr. Trost completed a year of pediatric infectious disease fellowship at the University of Texas Southwestern, where she studied respiratory viruses and their relation to asthma. She has now transitioned her infectious disease skills to a position on the infection control and antimicrobial stewardship committees at CHLA, and remains dedicated to teaching residents about appropriate antibiotic use.

In addition to viral respiratory illness, Dr. Trost's main research focus is improving the experience of hospitalization for children. Specifically, she studies ways to reduce pain and distress in both the children and parents admitted to CHLA. Most recently, she has partnered with USC Viterbi School of Engineering to bring socially assistive robots to CHLA to interact with children during painful procedures.

Currently she acts as a research mentor to four medical students through the USC Salerni mentorship program, and heads the Evidence-Based Medicine research interest group within the Division of Hospital Medicine

Clinical Interests

Dr. Trost is a general pediatrician who specializes in the care of hospitalized patients. This often includes children with very complex medical conditions, such as congenital heart disease.


Medical School: 

Medical College of Wisconsin


Children's Medical Center of Dallas


Children's Medical Center of Dallas


Children's Medical Center of Dallas



Pediatrics: American Board of Pediatrics

Professional Memberships: 

American Academy of Pediatrics, Academic Pediatrics Association, Society of Hospital Medicine


Alpha Omega Alpha



Carla G. García, Rafia Bhore, Alejandra Soriano-Fallas, Margaret Trost, Rebecca Chason, Octavio Ramilo, and Asuncion Mejias: “Risk Factors in Children Hospitalized With RSV Bronchiolitis Versus Non–RSV Bronchiolitis” Pediatrics. 2010

126:6 e1453-e1460

Trost, Margaret and Shimada, Hiroyuki: “Hospitalists Should Have Increased Suspicion for Primary Ciliary Dyskinesia in Patients with Congenital Heart Disease” Hospital Pediatrics. 2014

4 109-112

Research Interests: 

Technologically advanced interventions for reduction of pain and distress in hospitalized children. Respiratory viral illness and their relation to asthma. Expanding screening for postpartum depression and the effects of parental mood on children.

4650 Sunset Blvd.
MS #94
Los Angeles, CA 90027
Phone: 323-361-6177Office
Fax: 323-361-8106Fax