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Reza Mostofi,

M.D.

Medical Oncologist and Hematologist

4.9 (197 Ratings)
Biography photo
Location
City of Hope South Bay
5215 Torrance Blvd.
Torrance, CA 90503
Specialties
Hematologic Oncology
Education
Medical school:

2003, M.D., St. George's University School of Medicine, St. George’s, Grenada

Residency:

2003–2006, Internal Medicine, Drexel University College of Medicine / Hahnemann University Hospital, Philadelphia, Pennsylvania

Academic Appointments
  • Assistant Clinical Professor, Medical Oncology & Therapeutics Research
About Me

Reza Mostofi, M.D., was drawn to medicine by a love of physiology and a fervent desire to make a positive difference in people’s lives. Now, as a medical oncologist at City of Hope® South Bay, he brings years of experience and a compassionate, personalized approach to patient care. 

Originally from Iran, Dr. Mostofi grew up in the San Francisco Bay Area. He studied biological sciences with a focus on neuroscience, physiology and behavior at the University of California Davis, then went on to earn his medical degree from St. George's University School of Medicine. He completed his residency in internal medicine and his oncology fellowship in hematology and oncology at Drexel University College of Medicine in Philadelphia, where he also served as chief fellow. 

Dr. Mostofi has more than a decade of experience treating cancer and previously taught as an assistant professor at Temple University School of Medicine while at Crozer Regional Cancer Center, a Fox Chase Cancer Center affiliate. While he treats many types of cancer, he has a special interest in multiple myeloma, as well as lung, colon and breast cancers.

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 23, 2026
5.0
"Exceptional"
Apr 23, 2026
5.0
"The doctor explained everything about my health conditions."
Apr 9, 2026
5.0
"Dr. Mostofi is very professional and very concerned about all my questions and explained thoroughly.I feel very secure and confident with Dr. Mostofi!"
Apr 6, 2026
5.0
"[...] I believe in Dr. Mostofi and his treatment which has helped me; and I believe that COH runs like a fine machine from front office check in to Dr visit and treatment visit. I would definitely recommend COH to anyone dealing with cancer"
Mar 31, 2026
5.0
"I have referred COH to family member and she is now a patient at COH."
Feb 28, 2026
4.9
"Dr. Mostofi is very knowledgeable, caring and honest doctor. I've known him for 6 years now and would gladly recommend him."
Feb 28, 2026
4.4
"All doctors and nurses were terrific."
Feb 20, 2026
5.0
"Very accommodating staff."
Feb 17, 2026
5.0
"Excellent service from this provider."
Jan 16, 2026
3.3
"Frustrated with not receiving the PET scan completed info. It's been well over a week. Promises to get back to me has not happened :("
Jan 16, 2026
3.3
"This was my final attempt to get answers from this doctor, I do not feel as though my health and unusual case is being adequately addressed at all beyond a basic acknowledgement."
Jan 10, 2026
5.0
"Dr Mostofi was well prepared for my appointment. He had reviewed my history and discussions with him felt like he was my regular doctor. He clearly explained his findings and recommendations."
Dec 20, 2025
4.9
"Service is good or excellent but have little to compare it with"
Nov 24, 2025
5.0
"Dr. Mostofi continues to inspire confidence."
Nov 8, 2025
5.0
"With [...] and Dr. Mostofi in Torrance, I know I am in good hands. They're the best!"
Nov 8, 2025
5.0
"I would never go to anyone other than Dr. Mostofi! He is the best physician/provider! I'm truly grateful for him. [...]"
Oct 14, 2025
5.0
"Recommend highly Dr. Mostofi"
Sep 26, 2025
2.0
"The doctor is always in a rush and he doesn't communicate with the patient. He doesn't spend enough time !"
Sep 17, 2025
5.0
"Provider was excellent. I called COH requesting a 2nd opinion on cancer treatment, had an appointment within days of the request and the Dr clearly reviewed everything in my file, was patient, and took the time to answer all of my questions. While the recommend treatment plan was the same, this provider explained it simply and again answered all question, giving confidence in this treatment plan and why."
Sep 15, 2025
5.0
"Good"
Sep 15, 2025
5.0
"Good"
Aug 27, 2025
4.9
"He's a good guy"
Jul 17, 2025
5.0
"The most professional and helpful doctor in every respect!"
Jul 16, 2025
5.0
"Very good"
Jul 16, 2025
5.0
"Very good"