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Thanh H. Dellinger,

M.D.

Gynecologic Oncologist

4.8 (121 Ratings)
Biography photo
Location
City of Hope Comprehensive Cancer Center - Duarte
1500 East Duarte Road
Duarte, CA 91010
City of Hope Glendora
412 West Carroll Avenue, Suite 200
Glendora, CA 91741
Specialties
Gynecologic Oncology
Surgery
Education
Medical school:

University of California Irvine School of Medicine, Irvine, CA

Residency:

Obstetrics & Gynecology - Penn State University, Milton S. Hershey Medical Center, Hershey, PA

Academic Appointments
  • Associate Professor, Division of Gynecologic Oncology, Department of Surgery
About Me

Thanh Dellinger, M.D., is a gynecologic oncologist at City of Hope® Cancer Center Duarte

Dr. Dellinger is an expert in leading-edge surgical techniques for treating conditions including uterine, ovarian and cervical cancer, including robotic surgery for cervical and uterine cancers, as well as advanced cytoreductive surgery for ovarian cancer. These procedures are safe, effective and can promote faster recovery and better outcomes than conventional surgery while also minimizing scarring. She is also trained at administering PIPAC, a new method of delivering chemotherapy into the peritoneum, and is leading the first American clinical trial related to this therapy. 

A seasoned researcher, Dr. Dellinger has published more than 50 peer-reviewed articles covering topics such as PIPAC, HIPEC and molecular pathways in ovarian and uterine cancer. She earned her medical degree at University of California, Irvine, then completed her residency at Penn State University in University Park, Pennsylvania, and a fellowship in gynecologic oncology at the University of California, Irvine Medical Center.

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 24, 2026
5.0
"Great experience, and highly recommend this provider."
Apr 16, 2026
5.0
"So grateful for Dr. Dellinger and her excellent care. Will always recommend her [...]"
Apr 7, 2026
5.0
"I have recommended CoH"
Apr 1, 2026
5.0
"Great experience with the doctor and staff , always made me feel in good hands, Thank you for saving my life Doctor!!!!!"
Mar 27, 2026
5.0
"From the very 1st appt my Dr has always been one in asking me if have any questions, or if this makes sense. Always been easy to understand, never have felt rushed-like just a # rather more as actual person- definitely a very nice change..."
Mar 15, 2026
5.0
"Dr. Dellinger is a very knowledgeable physician. She is very friendly, patience, kind and helpful. Very gentle as well. She took her time to explain her procedure."
Mar 13, 2026
5.0
"Dr. Dellinger is an excellent physician. She's knowledgeable, caring, and gives you all the time you need. She also gently explains difficult things you may need to hear."
Mar 6, 2026
5.0
"Dr. Dellinger was supportive and she explained in detail everything I needed to know when I asked her any questions or concerns."
Mar 3, 2026
5.0
"As first visit more tests before action plan knowing that surgery to be planed with scheduler. Do not recall hearing risks other than addressing since could be pre-canerous and getting ahead of any issues."
Mar 3, 2026
5.0
"Great teamwork and found acquaintance there which provided even more support and thought of well ran caring place. All seemed thought out for the patient from 1st time free valet to floor to ceiling windows to capture the beautiful mountains and bring ZEN"
Jan 28, 2026
4.0
"I wish Dr. Dellinger had spent a bit more time going over what type surgery would be performed and I bit more on the risks and recovery after surgery. I felt there were a couple of questions that were unanswered. It felt a bit rushed."
Jan 1, 2026
5.0
"Dr Dellinger is very pleasant and easy to talk with. I would highly recommend her!"
Dec 18, 2025
5.0
"Instilling a positive effect on the health and wellbeing of patients fortunate enough to be seen by the CoH. Everyone I have encountered; physicians, staff, employees, parking attendants, volunteers ~ all have been marvelous and supportive."
Nov 12, 2025
5.0
"Because of my provider I am alive and better today."
Nov 7, 2025
5.0
"Dr was very friendly and professional, it was a good experience."
Oct 22, 2025
5.0
"You are one of the best ."
Oct 22, 2025
5.0
"Dr. Is amazing at what she does. Love how she explains everything and with kindness."
Sep 11, 2025
4.7
"Dr. Dellinger has always shown great understanding of my medical condition and respect for me as a person. I see her for periodic check ups and usually need to give her an update on what's been happening. She doesn't automatically know when she comes into the room. However she checks my records and responds helpfully to what I bring up."
Aug 20, 2025
5.0
"In my opinion, the CoH is fortunate to have such an exceptional physician"
Aug 14, 2025
5.0
"Great, great'"
Aug 14, 2025
5.0
"I received excellent care. And my experience the staff was perfection, great job. Thank you everyone"
Aug 13, 2025
5.0
"They treated me very well"
Jul 7, 2025
5.0
"Intelligent, quick decision maker, professional."