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.

Robert Ward Hagar

Robert Ward Hagar

MD

Internist

Contact me

Contact me

About me

Telehealth (video visits)

Insurance plan info

Board Certifications

American Board of Internal Medicine, Internal Medicine
Residencies

Univ of CA Davis Medical Center GME, Internal Medicine
Univ of CA Davis Medical Center GME, Internal Medicine & Pediatrics
Internship

Univ of CA Davis Medical Center GME, Internal Medicine
Degree

MD, University of Virginia School of Medicine

Where I see patients (5)

Selected research

See all research

Role of Menstrual Bleeding Assessments in Sickle Cell Clinics.
JAMA network open
December 2025
Learn more
Adjuvant low-dose ketamine for paediatric and young adult sickle cell vaso-occlusive episodes in the emergency department.
British journal of haematology
April 2022
Learn more
Effect of Inhaled Cannabis for Pain in Adults With Sickle Cell Disease: A Randomized Clinical Trial.
JAMA network open
July 2020
Learn more

Contact me

Tender wagging care

Our therapy dogs spread joy and smiles at the bedside and throughout the hospital.

Visit Child Life services