Thomas H. Yun, MD
Accepting new patients

Thomas H. Yun, MD

  • Internal Medicine
Average rating: 4.6
West Hills Primary & Specialty Care | 7345 Medical Center Drive, Suite 420, West Hills, CA 91307


Dr. Thomas Yun completed an undergraduate degree in Integrative Biology at UC Berkeley. He then worked in basic science research at Stanford University before enrolling in a dual degree program at the University of Illinois where he studied both biochemistry and medicine. After graduating with an MD degree he completed an intern year in General Surgery before finding his passion in Internal Medicine and completed residency training at LA County USC Medical Center. After residency, Dr. Yun worked as a hospitalist in Los Angeles and has expertise in a variety of chronic and acute medical problems including heart disease, hypertension, diabetes, as well as disease prevention.




Medical Board Certification

Internal Medicine, American Board of Internal Medicine, 2019


Internal Medicine, USC University Hospital, 2016
Anesthesiology, Emory University Hospital, 2012


General Surgery, UCSF East Bay Department of Surgery, 2012


MD, University of Illinois at Chicago College of Medicine, 2011


San Fernando Valley

West Hills Primary & Specialty Care

Gastroenterology| Family Medicine| Internal Medicine

Hospital Affiliations

Ronald Reagan UCLA Medical Center

Areas of Focus



  • Aetna
  • Anthem Blue Cross
  • Blue Shield of California
  • Centivo
  • Cigna
  • First Health
  • Health Net of California
  • Interplan (part of HealthSmart)
  • L.A. Care
  • MultiPlan
  • UFCM Health System
  • Prime Health Services
  • Private Healthcare Systems (PHCS)
  • UnitedHealthcare

The list of health care plans above may not be comprehensive and could change. 
Please contact your benefits coordinator or health insurance company directly to verify coverage.

Visit our health insurance information page for more details.


Overall Rating:
268 total ratings | 117 reviews
April 22, 2024
I think i will keep him as my primary doctor
April 19, 2024
April 19, 2024
Dr. Yun was very thorough and took time to review and explain all my lab work. I appreciate not feeling rushed.
April 19, 2024
Doctor Thomas Yun at west Hills office was kind and took his time taking care of me and my disabled son. And answered all questions that I had for my son and me really appreciate from Bottom Of my heart. Thanks thanks
April 9, 2024
Friendly and respectful