Accepting new patients

Yijun Chen, MD

  • Bariatric Surgery
General Surgery | 100 Medical Plaza, Suite 700, Los Angeles, CA 90095


Dr. Yijun Chen is a Health Sciences Associate Clinical Professor in the David Geffen School of Medicine at UCLA.

Dr. Yijun Chen grew up in Hunan, China. He attended Fourth Military Medical School in Xi'an, China. He came to US to do cancer research. He did his postdoctoral training in cancer biology at Stanford University. Dr. Chen completed his surgical residency training at Stanford University, where he found his passion to become a bariatric and minimally invasive surgeon. After finishing his bariatric fellowship at Duke University, he joined UCLA Department of Surgery. He enjoys connecting with and developing partnerships with patients.

Dr. Chen once lost 15 pounds in 3 months to lower his cholesterol. That experience helped him to develop great empathy for obese patients. After seeing many happy patients after weight loss surgery during his bariatric surgery rotation at Stanford, he decided to become a bariatric surgeon because he truly believes that bariatric surgery makes a huge difference for obese patients.




Medical Board Certification

Surgery, American Board of Surgery, 2014


Minimally Invasive & Bariatric Surgery, Duke University Medical Center, 2014


Surgery, Stanford University School of Medicine, 2013


Surgery, Stanford University School of Medicine, 2008


  • Arnold P. Gold Foundation's Humanism and Excellence in Teaching Award


West Los Angeles

General Surgery

General Surgery| Gastrointestinal Surgical Oncology| Trauma Surgery +2 more specialties

UCLA Health Encino Specialty Care

Santa Monica

Santa Monica Surgery

General Surgery| Surgical Oncology| Colon and Rectal Surgery +4 more specialties

Hospital Affiliations

Ronald Reagan UCLA Medical Center

UCLA Santa Monica Medical Center


Meet Yijun Chen, MD
Weight Loss Surgery: What You Need to Know
Obesity Can Have Implications Specific to Women | UCLA Vital Signs


  • 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. 
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  • Arnold P. Gold Foundation's Humanism and Excellence in Teaching Award