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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.

Ryan Ash

Ryan Ash

Ryan Ash

MD

Contact me

Contact me

About me

Telehealth (video visits)

Insurance plan info

Board Certifications

American Board of Psychiatry and Neurology, Psychiatry
Residencies

Stanford University Hospitals & Clinics GME, Psychiatry
Degree

MD, Baylor College of Medicine

Selected research

See all research

Spatial Attention and Session Day Jointly Modulate Human Visual Cortical Plasticity.
The European journal of neuroscience
October 2026
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Empirical limitations of current low-intensity focused ultrasound simulation platforms.
Brain stimulation
July 2026
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Empirical limitations of current low-intensity focused ultrasound simulation platforms.
medRxiv : the preprint server for health sciences
January 2026
Learn more

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Stress-free visits

Accommodations. Admissions. Procedure prep. Get the info you need for smoother hospital stays.

Prepare for your child's stay