Rady Children's Hospital - Orange County

Children's Hospital of Orange County

Donate
  • I Want To…
    • Find a Doctor
    • Make an Appointment
    • Access CHOC Patient Portal
    • Explore Career Opporunities
    • Explore Community Programs
    • Estimate My Charges
    • Pay My Bill
    • Request Medical Records
    • Download Vaccine Records
    • Refer a Patient
    • Visit a Patient
    • Connect
    • Volunteer
    • Give Back
      • Donate Blood
      • Make a Donation
      • Toy & Book Donations
    • I Want To…
      • Find a Doctor
      • Make an Appointment
      • Access CHOC Patient Portal
      • Explore Career Opporunities
      • Explore Community Programs
      • Estimate My Charges
      • Pay My Bill
      • Request Medical Records
      • Download Vaccine Records
      • Refer a Patient
      • Visit a Patient
      • Connect
      • Volunteer
      • Give Back
        • Donate Blood
        • Make a Donation
        • Toy & Book Donations
  • Services
    • Primary Care
    • Specialty Care
    • Mental Health
    • Conditions Library
    • All CHOC Services
  • Patients & Families
    • Make an Appointment
    • MyCHOC Patient Portal
    • Pay Your Bill
    • Request Medical Records
    • CHOC Health Hub
  • For Medical Professionals
    • Refer a Patient
    • Care Guidelines
    • Physician Relations
    • Continuing Medical Education
    • Residency and Training Programs
    • Graduate Medical Education (GME)
    • School Nurse Partnerships
  • Research & Innovation
    • Research Institute
    • Medical Innovation Institute (Mi4)
  • Locations
    • Emergency Departments
    • CHOC Hospital
    • CHOC at Mission Hospital
    • Urgent Care
    • Primary Care Offices
    • Specialty Centers
    • All CHOC Locations
  • About
    • Main Operator: 714-997-3000
    • Customer Care: 714-509-3200
    • Nurse Advice: 1-844-GET-CHOC
    • Contact Us
    • CHOC Foundation
    • Events
    • News Media Resources
  • Find a Doctor
  • Careers
  • Log In
    • MyCHOC
    • MyChart (CHOC Mission)
  • Donate

Children's Hospital of Orange County is now part of Rady Children's Health. Learn More

  • Skip to primary navigation
  • Skip to main content
  • Skip to footer
Home » Medical Staff » Pediatrics » Williamson, Katherine MD

Dr. Katherine Williamson, Pediatrics

Katherine Williamson CHOC Primary Care Logo

Katherine Williamson, MD

is on staff at
CHOC Mission Hospital

Appointments:
949-388-1798

Specialty:
Pediatrics

Board Certified:
Pediatrics

Dr. Katherine Williamson, MD, FAAP, is a board-certified pediatrician at Southern Orange County Pediatric Associates in Ladera Ranch, California, specializing in the health and well-being of children. Practicing at SOCPA since 2012, she provides comprehensive, family-centered care for infants, children and teens.

Dr. Williamson is particularly passionate about child advocacy and empowering kids and teens to understand their bodies and take an active role in their own health journey. As a member of the /Rady Children’s Health Primary Care Network, she is part of a nationally recognizes pediatric health system to deliver coordinated care and streamline access to specialty care and additional services when necessary.

Dr. Williamson is affiliated with the American Academy of Pediatrics and has been a leader in child advocacy since residency, partnering with schools, the OC Health Care Agency, and hospital leadership to enhance children’s health across Orange County. She was named Pediatrician of the Year by the AAP Orange County chapter in 2022 and is a regular contributor to news outlets, radio, and podcasts on children’s health topics.

Out the office, Dr. Williamson loves to unplug and be outdoors and moving as much as possible. Rock climbing, running, cycling, and swimming are her favorite activities.

“I feel humbled and inspired by the patients and families I serve. I’m honored to work alongside her SOCPA family who strive every day to make a positive difference in our patients’ lives.”

Location

Southern Orange County Pediatric Associates
777 Corporate Dr, Suite 250
Ladera Ranch, CA 92694
phone: 949-388-1798

Education

  • Medical School
    University of California, San Francisco, CA
  • Pediatrics Residency
    CHOC Hospital, Orange, CA

Locations

  • Southern Orange County Pediatric Associates Ladera Ranch

    Southern Orange County Pediatric Associates Ladera Ranch

    777 Corporate Drive
    Suite 250
    Ladera Ranch, CA 92694

Videos featuring Katherine Williamson, MD

About COVID vaccinations
COVID-19 Vaccine: Why It’s Needed, Why It’s Safe

Katherine Williamson, MD in the News

How can you help your child safely lose weight?

Primary Care / Family Medicine

How can you help your child safely lose weight?

Help your child safely lose weight with compassionate, pediatrician-approved tips that focus on healthy habits—not shame, diets, or the number on the scale.

CHOC Logo Icon CHOC Health

Updated AAP recommendations for screen time: What parents need to know

Parenting

Updated AAP recommendations for screen time: What parents need to know

Learn what the American Academy of Pediatrics AAP recommendations for screen time mean for your family, including how to balance devices and protect sleep.

CHOC Logo Icon CHOC Health

KNX News Radio: Daylight Saving Time might be impacting your kid more than you think

Healthcare

KNX News Radio: Daylight Saving Time might be impacting your kid more than you think

CHOC pediatrician Dr. Katherine Williamson discusses how daylight saving time impacts children and what parents can do to help.

CHOC Logo Icon CHOC Inside

Bed bugs and kids: A guide for parents

Primary Care / Family Medicine

Bed bugs and kids: A guide for parents

A CHOC pediatrician offers advice on the health impacts of bed bugs, how to prevent and remove them, and how to treat bites.

CHOC Logo Icon CHOC Health

Today’s Parent: How to Get Rid of Bed Bugs – Elimination and Prevention Tips

Healthcare

Today’s Parent: How to Get Rid of Bed Bugs – Elimination and Prevention Tips

Dr. Katherine Williamson, a CHOC pediatrician, discusses with Today’s Parent the health risks for children posed by bed bugs.

CHOC Logo Icon CHOC Inside

Is it OK to skip your child’s checkup if they’re healthy?

Primary Care / Family Medicine

Is it OK to skip your child’s checkup if they’re healthy?

A CHOC pediatrician explains six reasons why you shouldn’t skip your child’s checkup like getting parent support and questions answered.

CHOC Logo Icon CHOC Health

Podcasts featuring Katherine Williamson, MD

How to help your child safely lose weight

Nutrition

How to help your child safely lose weight

In this podcast, Dr. Katherine Williamson, a Pediatrician at CHOC, discusses how to manage your child’s eating habits while protecting a healthy body image.

CHOC Logo Icon CHOC Health

Rady Children's Hospital - Orange County

Rady Children's Health: formerly Children's Hospital of Orange County

1201 W La Veta Ave
Orange, CA 92868

(714) 997-3000

Rady Children's Health in Orange County is affiliated with

Links

  • Contact Us
  • Directions
  • Locations
  • News Media Resources
  • Careers
  • Giving

I Want To…

  • Find a Doctor
  • Refer a Patient
  • Pay My Bill
  • Request Medical Records
  • MyCHOC Patient Portal
  • Volunteer

Legal

  • Patient Rights and Responsibilities
  • Notice of Privacy Practices
  • Notice of Nondiscrimination
  • Language Assistance
  • Price Transparency
  • Privacy Policy
  • Help Paying Your Bill
  • Flexibility Waivers
Choco Wave
  • US News and World Report
  • The Joint Commission
  • California Awards
  • Magnet Recognized
  • Charity Navigator

Language Assistance:

  • Español
  • 繁體中文
  • Tiếng Việt
  • Tagalog
  • 한국어
  • Հայերեն
  • فارسی
  • Русский
  • 日本語
  • العربية
  • ਪੰਜਾਬੀ
  • ខ្មែរ
  • Hmoob
  • हिंदी
  • ภาษาไทย
  • Facebook
  • X
  • Pinterest
  • Instagram
  • LinkedIn
  • YouTube

©2026 Rady Children's Health | A 501(c)(3) Organization