Caitlin Lee McGrath, MD, MS

Caitlin Lee McGrath, MD, MS

Infectious Disease and Virology

On staff since July 2017

Children's Title: Attending Physician

Academic Title: Assistant Professor, Pediatric Infectious Diseases

Research Center: Center for Clinical and Translational Research

  • Dr. McGrath cares for patients on the inpatient infectious diseases consult service and in general infectious diseases outpatient clinic. She enjoys partnering with patients, families, and care teams throughout the hospital to work collaboratively to prevent and treat infections.

    She completed her pediatric residency at Seattle Children’s and worked as a hospitalist prior to starting fellowship. Her research interests include healthcare-associated infections (HAIs), CLABSI prevention, and the intersection of HAIs with health equity. During the 2022-23 year, she is participating in the Leadership in Epidemiology, Antimicrobial Stewardship, and Public Health (LEAP) Fellowship through the CDC to gain further experience in hospital epidemiology and public health, and will partner with the Washington State Department of Health on projects relating to HAIs and health equity. Dr. McGrath also serves as an Associate Medical Director for Infection Prevention at Seattle Children’s. 

    Outside of work, she enjoys spending time with her family including her two young daughters and exploring local parks and kid-friendly destinations.


Board Certification(s)


Medical/Professional School

David Geffen School of Medicine at UCLA, Los Angeles, CA


University of Washington School of Medicine GME, Seattle, WA


University of Washington School of Medicine, Seattle, WA

Clinical Interests

General inpatient and outpatient pediatric infectious diseases

Prevention of healthcare-associated infections

Prevention of infections in children who use medical technology