Headshot photo of Alison O'Neill, M.D.

Accepting new patients

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Alison O'Neill, M.D.

Accepting new patients

  • Assistant Professor of Pediatrics, Division of Endocrinology, School of Medicine


  • Pediatric Endocrinology
  • Diabetes

Special focus

  • Thyroid Cancer
  • Transgender Care

Locations and contact

I see patients at

About me

Dr. Alison O’Neill provides care for infants, children and adolescents with a wide range of endocrinology needs. She was drawn to a career in pediatric endocrinology because she enjoys being able to help children and families by investigating a new endocrine concern or helping them navigate and adapt to the challenges of a chronic endocrine condition. She deeply values the partnerships she builds with each family to support their child’s needs and help them thrive.

Dr. O’Neill’s prior research has focused on investigating potential new treatments for advanced pediatric thyroid cancer in the laboratory setting. Her current research interests include improving medical care for children and adolescents with pediatric thyroid nodules and thyroid cancer.

In her spare time, Dr. O’Neill enjoys hiking, baking, practicing yoga and exploring the outdoors in the beautiful Pacific Northwest. She loves spending time with her family, friends, her dog and three cats.

Education and training

    • M.D., 2016, Georgetown University School of Medicine
    • B.S., 2011, Georgetown University
  • Residency

    • Pediatrics, Oregon Health & Science University, 2019
  • Fellowship

    • Pediatric Endocrinology, Children’s Hospital of Philadelphia, 2022
    • Clinical Pharmacology, Children’s Hospital of Philadelphia & Thomas Jefferson University, 2022
  • Certifications

    • American Board of Pediatrics, 2019

Memberships and associations:

  • Pediatric Endocrine Society
  • American Thyroid Association
  • American Academy of Pediatrics
  • American Society for Clinical Pharmacology & Therapeutics
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