Meet Our Clinicians

Dr. Marion was born and raised in Dublin, Ireland. She attended medical school at Trinity College Dublin, and began her pediatric post graduate training there before moving to the United States in 2010.  

She completed her pediatric residency at the Children’s Hospital in Oakland in addition to a one-year clinical fellowship in pediatric pulmonary medicine at UCSF. She has been working at Tamalpais Pediatrics since 2018, and took a 2-year sabbatical in Ireland with her family from 2024 to 2026.  Dr. Marion has a special interest in child and adolescent mental and behavioral health, is currently enrolled in a fellowship for primary care providers in this field through UC Irvine and has done additional training in the diagnosis of the autism spectrum disorder.

She lives in Tiburon with her husband and 3 children and enjoys running, hiking, skiing and cooking in her free time.