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Thanh Nga T. Doan,

M.D.

Medical Oncologist

4.9 (108 Ratings)
Biography photo
Location
City of Hope Duarte
1500 East Duarte Road
Duarte, CA 91010
Education
Medical school:

University of South Florida Morsani College of Medicine, Tampa, FL

Residency:

Residency

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

Thanh Doan, M.D., a medical oncologist specializing in breast cancer at City of Hope® Cancer Center Duarte, believes in caring for each patient with the same compassion and attention she would want for her own family. She feels honored to play a role in improving people’s lives and finds inspiration in the ongoing advances in oncology. 

Dr. Doan was drawn to City of Hope by the genuine sense of hope patients experience, supported by a team of caring and dedicated experts. Alongside her clinical work, she is involved in research and contributes to online educational programs for health care providers. She also supports underserved youth by encouraging their interest in medical careers and serves as a mentor. Her passion for helping others has taken her on medical mission trips to Ecuador and Haiti. 

Outside of work, Dr. Doan enjoys playing tennis, hiking, photography, and expressing her creativity through drawing and painting.

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.
Jul 9, 2026
4.9
"Love working with Dr Doan [...]"
Jun 27, 2026
5.0
"Dr. Doan is very helpful, informative, patient and kind! She treats her patients with respect and compassion. Keep it moving and keep the good work going!!"
Jun 22, 2026
5.0
"I will recommend this Hospital to Family and Friends."
Jun 20, 2026
5.0
"City of Hope is a wonderful place!"
Jun 20, 2026
5.0
"Dr Doan is a wonderful, knowledgeable and caring doctor. I am thankful to have her as my oncologist."
Jun 17, 2026
5.0
"Very knowledgeable and polite."
Jun 17, 2026
5.0
"Visit was very punctual and informative. I felt at ease with Dr Doan ."
Jun 12, 2026
5.0
"Dr Doan (oncologist), [...] and Oncology Team are rockstars and have provided me excellent care & leadership with genuine compassion & concern! So grateful for City of Hope, my home away from home."
Jun 10, 2026
5.0
"For this type of appointment ( reviewing symptoms, meds, and options ) it was great."
May 30, 2026
5.0
"DR. Doan is excellent"
May 29, 2026
4.7
"I was very happy with the attention that this doctor gave me"
May 29, 2026
4.7
"All well and thank you for caring about me and my health"
Apr 19, 2026
4.7
"Dr Doan is amazing! Very caring and takes the time to make sure that you understand everything. I highly recommend her to anyone"
Mar 30, 2026
5.0
"Excellent"
Mar 30, 2026
5.0
"Excellent"
Mar 9, 2026
5.0
"Dr. Doan concerns for my questions. She explains it in a way that I would understand. She also discuss other treatment options that benefit me."
Feb 27, 2026
5.0
"Would highly recommend City of Hope"
Jan 24, 2026
3.5
"I think it would be really good if Dr. Doan would remember something vital about my medical history, and that is that I do NOT have a uterus. It seems a little odd to me that I have had to remind her of that fact various times already. This concerns me because she operates sometimes as if I have a uterus - like suggesting birth control for sex. Or making routine pregnancy tests part of my labs."
Jan 16, 2026
5.0
"Excellent explanations."
Jan 3, 2026
5.0
"Staff are very nice and caring."
Jan 3, 2026
5.0
"Dr. Doan always listens to my questions and explaining in details. She concerns about my health and my feelings."
Nov 1, 2025
5.0
"It was fine. Everything was addressed. I left it feeling I was heard and there was good communication. I was grateful."
Nov 1, 2025
5.0
"It is a good experience concerning an overwhelming experience such as Cancer.It has been a comfort to have the support of the Staff at COH. They have been a life changing asset to me."
Oct 28, 2025
5.0
"Dr. Doan cares for my health and answers questions about my issues. She explain things clearly."
Oct 17, 2025
3.4
"Dr Doan sometimes seems indecisive when she discusses my case and future treatment. She also gives confusing feedback related to my future surgery."
Oct 16, 2025
4.7
"I understand that many providers have different ways of interacting with their clients. Dr. Doan is thorough but she looks at the computer screen while she talks to me. I am hard of hearing but can read lips. Occasionally she turns and talks to me. She is fine except for that."
Oct 16, 2025
3.3
"Provider is very knowledgeable but shared too much info all at once and it was overwhelming for an initial appt"
Sep 24, 2025
5.0
"I gladly recommend my family"
Sep 24, 2025
5.0
"Everything is fine"