John Muir Health logo
  • Patients
    About MyChart
    Locating Patients
    Medicare
    New Patients
    Payment & Insurance
    Physician Open Payments Notice
    Preparing for Surgery
    Pre-Register for a Visit
    Registration & Forms
    Request a Health Record
    Security Center
    Video Visits
    Why Choose Us
  • Services
    Addiction Medicine
    Behavioral Health
    Cancer
    Cardiovascular Services
    Digestive Health
    Emergency Services
    Lab Services
    Medical Imaging
    Neurosciences
    Orthopedics
    Pediatrics
    Physical Rehabilitation
    Pregnancy & New Parent
    Primary Care
    Urgent Care
    ALL SERVICES
  • Education
    Classes, Screenings & Support Groups
    Clinical Trials
    Conditions & Treatments
    Health & Wellness
  • Health Professionals
    Careers
    Clinical Research
    Family Medicine Residency Program
    John Muir Medical Group
    Medical Staff
    Nursing
    Pharmacy Residency Program
    Resources
    Training & Education
    Video & Publication Center
  • About Us
    Annual Reports
    Awards & Recognition
    Board of Directors
    Community Commitment
    Employers, Brokers, & Health Plans
    Executive Team
    Make a Gift
    Mission & Vision
    Partnerships
    Media Center
MyChart Login
  • Find a location
  • Find a doctor
  • Pay a bill
  • Find a job
✕

Latest information on COVID-19 >

Pediatric Infectious Diseases

Through our collaboration with Stanford Medicine Children’s Health, we diagnose and treat a wide variety of common and rare infectious diseases for children and teens of all ages—right here, close to home. 

  1. Home
  2. Services
  3. Pediatrics
  4. Pediatric Specialists
  5. Infectious Disease

Expert Pediatric Infectious Diseases Care—Close To Home

For parents in Contra Costa County and surrounding communities, having a child with a complex medical condition used to mean spending lots of time traveling all over the Bay Area for visits with children’s specialists. 

Through our collaboration with Stanford Medicine Children’s Health, we diagnose and treat a wide variety of common and rare infectious diseases for children and teens of all ages—right here, close to home.   

In addition to your pediatric infectious disease specialist, your child’s care team may also include nurses and other healthcare providers—all who have advanced training in specifically treating children and teens.    

Meet Your Doctors

Samantha Johnston, MD

Pediatric Infectious Diseases

What keeps me going with infectious diseases is that it is constantly changing. It is like being a detective. You are working to solve the mystery of what is causing a problem in a child, or population, and you hope to find a solution!

I love children and working with people. I hope to give the patient and their families the information they need to be empowered to deal with the disease they are facing. For patients who live far away or cannot come to see me regularly, I can also work with primary care physicians to provide a supporting framework and guidance to manage their conditions from a distance. 

View Profile

Talal Seddik, MD

Pediatric Infectious Diseases

I've always wanted to be a pediatrician because it is a way for me to help both children and their families while making a long-lasting impact on their lives. I partner with families and use an evidence-based, scientific approach to develop a plan to treat illnesses that could be caused by infectious agents. 

As an infectious diseases specialist, my job is to determine if a child has an infection and, if not, to help guide further steps toward an alternate diagnosis. Most infections are treatable or will resolve on their own without treatment, so patients with infections often get better, which is very rewarding.  

View Profile & Video

James McCarty, MD

Pediatric Infectious Diseases

106 La Casa Via, Suite 250
Walnut Creek, CA  94598

Phone: (800) 995-5724
Fax: (650) 721-2884  

View Profile

What Our Partnership With Stanford Medicine Children’s Health Means For Your Family

Your pediatrician referred you to us, and we want you to know that you’re in good hands. Our collaboration marries the best of two worlds for our patients and their families by bringing Stanford Medicine Children's Health expertise and innovation into a community-based setting that keeps families close to home. Together, our partnership provides:

  • Expert Care from Stanford Medicine Children’s Health Doctors: From office visits to hospital procedures and stays at our Walnut Creek Medical Center, you can rest easy knowing that your child will be cared for by some of the nation’s top pediatric specialists—without having to travel to outside of the East Bay.
  • Comprehensive Care, Conveniently Close: Any hospital-based services your child may need—ranging from simple blood work and imaging to infusion therapies—can all be conveniently done at our Walnut Creek Medical Center by staff who are highly trained in treating children of all ages, using specialized equipment designed just for children. 
  • Pediatric Intensive Care Unit (PICU): If your child requires complex care, you’ll have the added peace of mind that our PICU—staffed 24/7 by Stanford Medicine Children’s Health doctors and John Muir Health nurses and other care providers—is right here at our Walnut Creek Medical Center. Learn more about our PICU.

Learn more about Stanford Medicine Children’s Health and our partnership.

Hi! I'm here to help answer your questions.
Chat
ABOUT
About Us
Board of Directors
Executive Team
Awards & Recognition
Partnerships
Community Commitment
Employers, Brokers & Health Plans
NEWS & PRESS
Media Center
Annual Reports
GET INVOLVED
Careers
Volunteer
Make a Gift
CONTACT
Email Us
PRIVACY
Patient Privacy
Website Privacy
Terms of Use
Security Center
Follow Us

© John Muir Health All rights reserved.

John Muir Health is accredited by The Joint Commission. 

We use cookies to measure website traffic and personalize content for a better browsing experience. By using this website, you consent to our cookies. For more details, see our Website Privacy Policy.