Meet Your Team
Meet Your Team
Our Gender Clinic team features compassionate providers, nurses and care navigators who are dedicated to helping young people be comfortable in their bodies and fulfill their affirmed gender identity.
Providers in the Gender Clinic include:
Leadership
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Co-Director, Gender Clinic
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Co-Director, Gender Clinic
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Catherine Verriere Sumerwell, ARNP, DNP
Clinical Lead, Gender Clinic
Teams
Adolescent medicine providers
Adolescent medicine providers have specialized training in caring for the physical and emotional needs of young people from puberty through early adulthood.
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Crystal Cuellar, MD, MPH
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Endocrinology providers
Endocrinologists are doctors with special training and experience in how hormones regulate the body.
Behavioral health providers
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Katherine Ann Glass, MD
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Matt Goldenberg, PhD
Nurses
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Mackenzie Boland, RN, BSN
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Stacy Gallagher, RN, BSN
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Janet Sullivan, RN, BSN
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Sully Sullivan, RN, BSN
Contact Us
For more information, contact the Gender Clinic at 206-987-2028. You do not need a provider’s referral to make an appointment; however, we do encourage you to coordinate with your primary care provider when coming to Seattle Children's. Contact our care navigators at 206-987-5768 if you have questions or need help working with your primary care provider.
Providers, see how to refer a patient.
