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Karen Cheng,

M.D.

Radiation Oncologist

Biography photo
Location
City of Hope San Bernardino Radiation Oncology
401 East Highland Avenue, Suite D
San Bernardino, CA 92404
Specialties
Radiation Oncology
Education
Medical school:

Boston University School of Medicine, Boston, MA

Residency:

Radiation Oncology - USC/Los Angeles General Medical Center, Los Angeles, CA

Academic Appointments
  • Assistant Clinical Professor, Department of Radiation Oncology
About Me

Karen Cheng, M.D., is an assistant professor of radiation oncology at City of Hope® San Bernardino, where she combines clinical skill, kindness and respect for diverse cultures in caring for every patient. 

Dr. Cheng’s path to medicine grew from her love of bioengineering and healthcare technology, along with a strong desire to give back to her community. She earned her medical degree from Boston University School of Medicine, then completed an internal medicine internship at Long Island Jewish Medical Center in Queens, New York. She went on to finish her radiation oncology residency at the University of Southern California/Los Angeles General Medical Center, where she also served as chief resident. 

Her dedication to advancing new technologies in radiation oncology led her to City of Hope, known for its outstanding patient care and groundbreaking clinical research. 

Dr. Cheng has published extensively in her field, including a book chapter about treating pineal region tumors. She has received several honors, such as the American College of Radiation Oncology Excellence in Mentorship Award, the Keck School of Medicine DEI Leaders Scholarship and the Boston University School of Medicine Anne and David Mischel Cancer Research Award. Along with English, she speaks Mandarin, Taiwanese and some Spanish.

Patient reviews
The patient ratings and comments on this page are obtained from an external Press Ganey® outpatient survey provided to all eligible City of Hope patients within one to two weeks of their treatment occurrence. Raw data from the answers to the survey questions about our physicians are calculated by Press Ganey into a one- to five- star rating. In the spirit of transparency, all patient comments are posted as written by the patient, whether they are positive or negative. We only exclude comments if they are deemed to be slanderous or libelous, contain profanity or vulgar language, or do not relate to the patient's experience with the doctor involved. As a result, the comments are the views and opinions of the patients surveyed and are not endorsed by, and may not necessarily reflect the opinion of, City of Hope.
Apr 22, 2026
5.0
"Excellent Service and Professionals"
Apr 22, 2026
5.0
"Excellent experience if I recommend it"
Mar 21, 2026
5.0
"Good"
Mar 21, 2026
5.0
"Good"
Mar 19, 2026
5.0
"Very well informed."
Mar 19, 2026
5.0
"Very well organized."
Mar 14, 2026
5.0
"Good"
Mar 14, 2026
5.0
"All very well"
Nov 8, 2025
5.0
"Excellent"
Oct 3, 2025
5.0
"Definitely I will recommend this hospital"
Aug 1, 2025
5.0
"Professional."
Aug 1, 2025
5.0
"Very efficient and professional."
Jul 26, 2025
5.0
"Clear and precise what was going to be happening"
Jun 24, 2025
5.0
"All good"