Margaret Trost, MD, MS

Associate Division Chief, Division of Hospital Medicine
Director, Professional Development
Attending Physician
Assistant Professor of Clinical Pediatrics, Keck School of Medicine of USC

Margaret Trost, MD, MS is an Associate Professor in the Division of Hospital Medicine. Dr. Trost is a passionate educator, researcher, and mentor. She teaches medical students, residents, and fellows how to care for pediatric inpatients at Children's Hospital Los Angeles. She has been an instructor for the USC Keck School of Medicine course "Introduction to Clinical Medicine" since 2011 and was awarded Outstanding Teacher for the year 2016-2017.    She was also recognized nationally by the Academic Pediatrics Association with a Junior Faculty Teaching Award in 2018.

Dr. Trost's main research focus has been the application of socially assistive robots (SAR) to hospital medicine. This work has been a collaboration with USC Viterbi School of Engineering to bring socially assistive robots to CHLA to interact with children during painful procedures and reduce pain and distress.  Through this and other projects she has mentored young researchers and was awarded the USC Required Scholarly Project Research Mentor Award in 2015.

In the Division of Hospital Medicine, Dr. Trost focuses on improving mentoring and professional development for both junior and senior faculty.

Clinical Interests

Dr. Trost is a general pediatrician who specializes in the care of hospitalized patients. This often includes children with chronic illness or medical complexity.


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
Pediatric Hospital Medicine: American Board of Pediatrics

Professional Memberships

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


Alpha Omega Alpha


Garcia CG, Bhore R, Soriano-Fallas A, Trost M, Chason R, Ramilo O, Mejias A. Risk Factors in Children Hospitalized With RSV Bronchiolitis Versus Non–RSV Bronchiolitis. Pediatrics. 2010; 126:6 e1453-e1460; doi:10.1542/peds.2010-0507

Trost MJ, Torreblanca KM, Man C, Casillas E, Sapir H, Schrager SM. Screening for maternal postpartum depression during infant hospitalizations.  Journal of Hospital Medicine; 2016 doi: 10.1002/jhm.2646.

Trost MJ, Cowell M, Cannon J, Mitchell K, Waloff K, Avila H, Chand S, Russell C.  Risk Factors for Overnight Respiratory Event Following Sedation for Non-invasive Radiology Studies in Children with Sleep Apnea.  Sleep and Breathing, 2016. doi:10.1007/s11325-016-1410-4

Trost MJ, Webber E, Wilson K.  Getting the word out: Disseminating Scholarly Work in the Technology Age. Academic Pediatrics, April 2017. DOI 10.1016/j.acap.2017.01.007

Trost MJ, Robison N, Coffey D, Mamey M, Robison RA.  Changing trends in brain imaging technique for pediatric patients with ventriculoperitoneal shunts. Pediatric Neurosurgery. January 2018. DOI: 10.1159/000485923

Trost MJ, Potisek NM, Seltz LB, Rudnick M, Mamey M, Long M, Quigley PD. Medical student participation in patient and family centered rounding: a national survey of pediatric clerkships.  Academic Pediatrics. January 2019. doi: 10.1016/j.acap.2018.12.010.

Trost MJ, Ford A, Kysh L, Gold J, Mataric M.  Socially assistive robots for helping pediatric distress and pain: A review of current evidence and recommendations for future research and practice.  Clinical Journal of Pain. 2019 May;35(5):451-458. doi: 10.1097/AJP.0000000688.

Trost MJ, Barqadle F, Rudnick M, Christman G. Medical student training in pediatric hospital medicine: a national survey of pediatric clerkships. Hospital Pediatrics, November 14 2019 pii: hpeds.2019-0171. doi: 10.1542/hpeds.2019-0171.

Trost MJ, Chrysilla G, Gold J, Mataric M. Socially assistive robots using empathy to reduce pain and distress during peripheral IV placement in children. Pain Research and Management, accepted Feb 2020, in press


Socially assistive robots and other technologies to reduce pain and distress in hospitalized children. Mentoring and professional development for pediatric hospitalists.