Mary L.
O'Connor Leppert
,
MB, BCH
801 N. Broadway
Baltimore, MD 21205
United States
About
Dr. Mary L. O'Connor Leppert, MB, BCH, is a neurodevelopmental pediatrician in the Department of Neurology and Developmental Medicine at Kennedy Krieger Institute where for over 30 years, she has provided clinical care to children with or at risk of developmental disabilities. Dr. Leppert is also a clinical professor of pediatrics and the Division Director of Developmental Pediatrics in the Department of Pediatrics at Johns Hopkins University School of Medicine. She is the founder and director of Kennedy Krieger Project ECHO, which has been offering interprofessional, case-based consultation, didactic instruction, and mentorship through longitudinal series to community providers since 2016. She developed the Teaching Excellence in Neurodevelopmental Disorders (TEND) program for the clinical instruction of medical trainees as well as the Kennedy Krieger Instruction in Neurodevelopmental Disorders (KIND) curriculum for asynchronous, independent learning on developmental disorders.
Education
Dr. Leppert received her undergraduate degree in biology from the Catholic University of America in Washington, DC. She received her medical training at the national Universities of Ireland, University College Cork, where she earned her MB, BCh, BAO degrees. She completed a residency in pediatrics at St. Agnes Hospital in Baltimore MD, and joined Kennedy Krieger in 1992 with a fellowship in developmental pediatrics through the Johns Hopkins University School of Medicine. She has been an active medical staff member at Kennedy Krieger Institute since 1995 in the division of Neurology and Developmental Medicine. Dr. Leppert has an active role in the education of the residents and fellows of the Neurodevelopmental Disabilities Residency Program.
Research
Dr. Leppert’s interests include the evaluation of teaching strategies and the early identification of developmental disorders, the understanding of the cause of developmental disorders, and the education of trainees on early identification of developmental disorders and associated deficits. Dr. Leppert’s educational focus surrounds curriculum development and dissemination of training on early identification and co-occurring disorders in early childhood.
Related Links
Elsevier Fingerprint Engine Profile for Mary L. O'Connor Leppert
Google Scholar Profile
Research Publications
Han G, Lambert JO, Bethell CD, Leppert ML, Wilson RF, Sabinga EMS, Connor KA, Ahmed A, Gharibani T, Bass EB, Kim JM. Pediatric quality measures in developmental screening and follow-up: an evidence map. Pediatrics.2026; 157(6)e2025075334.
Villatoro C, Henning E, Ng R, Kogut M, Steinberg J, Chen B, Holingue C, Leppert M, Malone L, Enhancing Pediatric Long COVID Care through Telementoring: Insights from and ECHO Program. Clinical Pediatrics. 2025.
Harrison JN, Leppert MLO. The 8Ss: A tool to Facilitate and Interprofessional Tele-education Model Addressing the Early Childhood Behavioral Health Provider Shortage. Journal of Technology in Behavioral Science. 2024. doi.org/10.1007/s41347-024-00383-0
Leppert ML, Bettencourt A, Harrison JN. Behavioral concerns in early childhood consultation: diagnostic overshadowing and comorbidity. Clinical Pediatrics. 2023. 62(11):1315-1317.
Davis BE, Leppert MLO, German K, Lehmann CU, Adams-Chapman I. Primary care framework to monitor preterm infants for outcomes in early childhood. Pediatrics. 2023; 152(1): e202306251
Harrison JN, Steinberg J, Wilms Floet AML, Grace N, Menon D, German R, Chen B, Yenokyan G, Leppert MLO. Addressing pediatric developmental and mental health in primary care using tele-education. Clinical Pediatrics. 2022;61(1):46-55.,