About
Dr. Jon-Michael Castelli is a pediatrician in San Francisco. He graduated from Duke University and earned his medical degree at The Ohio State University. He completed his pediatric residency at Stanford's Lucile Packard Children's Hospital. Dr. Castelli spent the first decade of his career as a pediatric hospitalist before transitioning to concierge primary care in 2016.
He has served as a medical director in both inpatient and outpatient settings. He enjoys travel, cooking, and spending time with his wife and two daughters.
Education & Training
Undergraduate
Duke University (cum laude)
Medical School
The Ohio State University College of Medicine
Residency
Pediatric Residency, Stanford University Lucile Packard Children's Hospital
Who is Dr. Castelli right for?
Dr. Castelli is a strong fit for families seeking experienced, relationship-driven pediatric care. His hospitalist background makes him well-suited for children with complex or acute medical needs. Parents who want a physician with both inpatient and outpatient expertise will find his depth of training valuable. His concierge panel size allows him to know each child and family well.
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Frequently Asked Questions
Dr. Castelli sees pediatric patients. He focuses on primary care for children and brings extensive experience from his years as a pediatric hospitalist. Families looking for a physician with both inpatient and outpatient pediatric expertise are a strong fit for his panel.
Dr. Castelli completed his pediatric residency at Stanford University's Lucile Packard Children's Hospital. This training gave him a strong foundation in both routine and complex pediatric care.
Dr. Castelli has practiced pediatric medicine since completing his residency at Stanford. He spent his first decade as a pediatric hospitalist before joining concierge primary care in 2016.
Yes. Dr. Castelli served as a medical director in both inpatient and outpatient settings. This leadership background complements his clinical work and his understanding of how healthcare systems support patient outcomes.
Dr. Castelli earned his medical degree at The Ohio State University College of Medicine. He completed his undergraduate studies at Duke University, graduating cum laude.
Dr. Castelli transitioned to concierge primary care in 2016. Before that, he spent the first decade of his career practicing as a pediatric hospitalist.
Doctor profile last updated March 21, 2026