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Clinics & Locations
Clinics & Locations
Here to serve you

Explore our network of care for kids, from the tiniest to teens and young adults.
Find a Doctor
Find a Doctor
- Find a Doctor
- Get a Second Opinion
World-class docs

We'll help you find the best provider for your child.
Your Visit
Your Visit
Stress-free visits

Accommodations. Admission. Discharge. Procedure prep. We've got you covered.
Patient Education
Patient Education
Extraordinary kid care

Our specialists handle conditions ranging from the common to the most rare.
Medical Professionals
Medical Professionals
Referrals made easy

Contacts and resources to get your patients to our pediatric specialists
Why Choose Us?
Why Choose Us?
Best in Northern CA

We're ranked #1 in pediatric cancer, heart surgery, cardiology & more.

Alejandro Lopez

Alejandro Lopez

Alejandro Lopez

MD, PhD

Contact me

Contact me

About me

Insurance plan info

Board Certifications

American Board of Internal Medicine, Internal Medicine
Residencies

UCSF School of Medicine -GME, Internal Medicine
Degree

MD, Weill Cornell Medical College

Selected research

See all research

Opposing GIPR brainstem circuits differentially control feeding behaviour.
bioRxiv : the preprint server for biology
July 2026
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Functional segregation of body-brain signals in the area postrema.
bioRxiv : the preprint server for biology
June 2026
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Parallel Multimodal Circuits Control an Innate Foraging Behavior.
Neuron
February 2019
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Learning never stops

Our classroom and bedside classes help kids get credit and keep learning during treatment.

See our school program