Looks like you’re visiting Benioff Children's Hospitals on Internet Explorer. For the best experience, try Chrome or Firefox.

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.

Josiah Gerdts

Josiah Gerdts

Josiah Gerdts

MD, PhD

Contact me

Contact me

About me

Telehealth (video visits)

Insurance plan info

Board Certifications

American Board of Internal Medicine, Neurology
Residencies

UCSF School of Medicine -GME, Neurology
Internship

UCSF School of Medicine -GME, Neurology
Degree

MD, Washington University School of Medicine in St. Louis

Selected research

See all research

AEGIS reveals epitope- and clone-resolved convergence of CNS B and T cell autoreactivity in ROHHAD.
bioRxiv : the preprint server for biology
May 2026
Learn more
Antigen specificity of clonally enriched CD8+ T cells in multiple sclerosis.
Nature immunology
February 2026
Learn more
Anti-CD320 Autoantibodies and Central Nervous System Vitamin B12 Deficiency in Idiopathic Myelopathy.
medRxiv : the preprint server for health sciences
January 2026
Learn more

Contact me

Learning never stops

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

See our school program