Yi-Jen Chen, M.D., Ph.D.

(877) 460-4673
Yi-Jen Chen, M.D., Ph.D.
Radiation Oncologist
Clinical Expertise
  • Gastrointestinal Cancers
  • Gynecologic Cancers
  • Esophageal Cancer
  • Brachytherapy
  • Image-Guided Intensity Modulated Radiation Therapy (IG-IMRT) / TomoTherapy
Research Area
  • Radiation Treatment for Gastrointestinal and Gynecologic Cancers
Other Languages Spoken
Mandarin
Academic Appointments
  • Clinical Professor, Department of Radiation Oncology
  • Director, Residency Program
Clinical Teams
Bile Duct Cancer
Gastrointestinal Cancers
Gynecologic Oncology
Uterine and Endometrial Cancers
Named a Top Doctor by Pasadena Magazine many times, Yi-Jen Chen, M.D., has been with City of Hope since 2002, following four years in the radiation oncology department at University of California, Irvine, Medical Center.  
 
Dr. Chen earned his medical degree at National Yang-Ming University in Taipei, Taiwan and received his Ph.D. from Tokyo Medical & Dental University.
 
His focus is on developing and improving radiation regimes for gastrointestinal and gynecologic cancers.
 
The son of a gastroenterologist, Dr. Chen learned from his father to “treat others like you treat your own.”

Location

Education & Experience

Board Certifications

  • 2002, American Board of Radiology - Therapeutic Radiology

Degrees

  • 1991-1998, First Department of Surgery, Tokyo Medical & Dental University, Tokyo, Japan, Ph.D.

  • 1977 -1984, National Yang-Ming University School of Medicine, Taipei, Taiwan, M.D., Medicine

Residency

  • 1998 -2002, Radiation Oncology, University of California Irvine Medical Center

Professional Experience

  • 2017 – present, Residency Program Director, City of Hope, Duarte, CA

  • 2002 - present, Clinical Professor and Staff Physician, Department of Radiation Oncology, City of Hope, Duarte, CA

Ratings & Reviews

Ratings and reviews below are gathered from the Press Ganey Clinician and Group Consumer Assessment of Healthcare Providers and Systems (CG CAHPS) survey. CG CAHPS is a standardized survey that is used to measure a patient's experience in the physician office setting. Ratings are an average of all responses to questions about a provider's care, with five stars being the highest.
5.0
Show respect for what you say
4.9
Recommend this provider office
4.9
Provider explain in way you understand
4.9
Provider listen carefully to you
4.9
Know important info medical history
4.9
Spend enough time with you
4.9
Rate provider 0-10
02/10/25
Dr. Chen was very thorough in explaining what he was recommending and why. He did not rush me and answered all my questions. He's warm and caring which I so appreciated. - Verified patient
02/10/25
Cancer is a scary experience. My interactions with everyone at City of Hope have been so positive without exception!! Amazing! - Verified patient
11/09/24
Dr Chen and [...] were outstanding. They showed a level of care and compassion that a family member would. Dr Chen's guidance on dealing with radiation and chemo side effects were always helpful and his encouragement helped throughout the entire treatment. - Verified patient
09/30/24
Dr. Chen was kind, thorough and efficient. I am very fortunate he is one of the doctors monitoring my health care. - Verified patient
09/15/24
City of Hope is tops. [...] there was no question where I wanted to be treated when I was diagnosed with cancer! - Verified patient