About
A. in Human Biology from Stanford University in 1995. She completed her MD at Saint Louis University School of Medicine in 2001. Her pediatric internship, residency, and staff hospitalist training all took place at Oakland Children's Hospital between 2001 and 2006. The American Board of Pediatrics has certified her in her specialty. After her hospitalist years at Oakland Children's, Dr. O'Riordan worked as a pediatric provider at an urgent care on the peninsula before joining Blackhawk Medical Group in 2012. Her clinical interests include newborn care, adolescent medicine, and sports medicine. Outside the office, she enjoys snowboarding, camping, hiking, and traveling with her husband, who also practices medicine in the area, and their three boys.
Education & Training
Undergraduate
Stanford University, B.A. Human Biology, 1995
Medical School
Saint Louis University School of Medicine, MD, 2001
Residency
Pediatric Internship & Residency, Oakland Children's Hospital, 2001-2004
Additional Training
Staff Hospitalist, Oakland Children's Hospital, 2004-2006
Certifications
Conditions Treated
Who is Dr. O'Riordan right for?
Dr. O'Riordan is the right fit for families seeking a pediatrician with deep hospital-based training and a broad scope of care. Parents of newborns benefit from her specialized newborn care experience. Adolescents, including young athletes dealing with sports injuries, will find her sports medicine interest directly relevant. Her background at Oakland Children's Hospital brings a high level of clinical depth to routine and complex pediatric visits alike.
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Frequently Asked Questions
Dr. O'Riordan cares for patients from newborns through adolescents. Her interests span newborn care, childhood development, and adolescent medicine. She also addresses sports injuries in young athletes.
Yes, the American Board of Pediatrics has certified Dr. O'Riordan. She completed her pediatric internship and residency at Oakland Children's Hospital, where she also served as a staff hospitalist.
Yes, sports medicine is one of Dr. O'Riordan's clinical interests. She sees young athletes dealing with sports-related injuries and conditions alongside her general pediatric patient population.
Dr. O'Riordan completed her MD at Saint Louis University School of Medicine in 2001. She then trained at Oakland Children's Hospital from 2001 to 2006, including internship, residency, and staff hospitalist roles.
Yes, newborn care is a primary clinical interest for Dr. O'Riordan. Her extensive hospital-based training at Oakland Children's Hospital prepared her well for the early stages of a child's health.
Dr. O'Riordan treats a wide range of pediatric conditions, including newborn health issues, childhood infections, developmental disorders, genetic abnormalities, mental and behavioral concerns, and sports injuries. She also focuses on adolescent medicine.
Doctor profile last updated June 9, 2026