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Ernest S. Han,

M.D., Ph.D.

Gynecologic Oncologist

4.9 (152 Ratings)
Biography photo
Location
City of Hope Duarte
1500 East Duarte Road
Duarte, CA 91010
Specialties
Gynecologic Oncology
Surgery
Education
Medical school:

Board Certifications

  • 2004–2024, Diplomate of the American Board of Obstetrics and Gynecology

Degrees

  • 1994–2000, University of Texas Medical Branch, Galveston, M.D.
  • 1992–2000, University of Texas Medical Branch, Galveston, Ph.D., Cell Physiology and Molecular Biophysics
  • 1988–1992, University of California Berkeley, Berkeley, CA, B.A., Molecular and Cellular Biology

Fellowship

  • 2004–present, University of California Irvine, Orange, CA, Fellowship, Gynecologic Oncology

Residency

  • 2000–2004, Brown University, Women and Infants Hospital, Providence, RI, Residency, Obstetrics and Gynecology

Professional Experience

  • 2020–Present Program Director, ACGME Gynecologic Oncology Fellowship Program, City of Hope, Duarte, CA
  • 2021–present, Associate Professor, Department of Surgery, Division of Gynecologic Oncology, City of Hope, Duarte, CA
  • 2021–present, Chief, Division of Gynecologic Oncology, Department of Surgery, City of Hope, Duarte, CA
Academic Appointments
  • Associate Professor and Chief, Division of Gynecologic Oncology, Department of Surgery
About Me

Ernest Han, M.D., Ph.D., is a gynecologic cancers specialist at City of Hope® Cancer Center Duarte, where he serves as chief of the Division of Gynecologic Oncology. As both a doctor and a researcher, Dr. Han is deeply committed to offering the most advanced and effective surgical care for women with a wide range of cancers, whether through traditional surgery or minimally invasive techniques. 

A major focus of Dr. Han’s work is the use of special imaging tools during cancer surgery to enhance accuracy and improve the chances of removing all signs of cancer in a single procedure. His research also looks at ways to improve the overall surgical experience, with the goal of faster recovery and better long-term outcomes. 

Dr. Han also plays a key role in shaping the future of gynecologic cancer care by directing the gynecologic oncology fellowship program, which is accredited by the Council for Graduate Medical Education. He is passionate about mentoring new doctors and making sure they are well-prepared to deliver skilled and compassionate care to women facing gynecologic 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.
May 30, 2025
"I asked him several times about a treatment he suggested could be done to relieve my painful condition. He kept changing the subject so I called and emailed him after appt, I have not heard back ! It has been over a week & a half"
May 25, 2025
5.0
"Dr. Ernest Han is a doctor that I feel safe and confident in discussing any problem or concerns regarding my health."
May 24, 2025
5.0
"I love Dr Han! He is knowledgeable, compassionate and listens well"
May 20, 2025
5.0
"Dr. Han is an excellent and exceptional Doctor. I'm so happy to having him as my doctor I trust and respect his opinions about my health."
Apr 30, 2025
5.0
"Dr. Han is awesome"
Apr 26, 2025
5.0
"Outstanding physician. The best."
Apr 23, 2025
5.0
"Highly recommend Dr. Han!"
Apr 23, 2025
5.0
"Dr. Han saved my life, he and [...] did my surgery and both of them saved my life"
Feb 2, 2025
5.0
"Every time I get a chance to recommend Doctor Han to family, friends or acquaintances, I do! He is wonderful."
Feb 1, 2025
5.0
"Very good!"
Feb 1, 2025
5.0
"Excellent!"
Jan 26, 2025
5.0
"Dr Han was very attentive since he is very familiar with my case. He gave me a game plan of the proposed treatments and proposed timeframes"
Jan 24, 2025
5.0
"Dr. Han is very thorough and cared about my concerns."
Jan 20, 2025
5.0
"As I said, I recommended your practice to my friend and she switched to City Of Hope. She also has been very impressed and is having her surgery with you tomorrow. I was also impressed with the pre-op nurses who heard my concern about my vocal cords not being damaged by the tube the anesthesiologist used. Something as small as this was heard -- thank you."
Jan 20, 2025
5.0
"[...] It was very easy to make the decision to come to City of Hope. And when I told my friend this she switched her surgery over to City of Hope as well [...]"
Dec 21, 2024
5.0
"Dr Han has been my Doctor since 2023 and has been professional, courteous, and always discussed my condition treatment and involves me with the decision making. I thank him for his way of making me feel good but also I thank him for saving my life."
Dec 19, 2024
5.0
"Wonderful doctor"
Nov 25, 2024
4.9
"I like Dr. Han and I trust him to do my surgery. [...]"
Nov 17, 2024
5.0
"I have recommended several people to COH."
Nov 3, 2024
2.7
"COH Hospital is amazing I would not hesitate to refer anyone one."
Oct 13, 2024
5.0
"We are so thankful for Dr. Han. He is an amazing doctor. He is kind, compassionate, and very knowledgeable. We did not feel rushed at all and he answered all of our questions and concerns with excellent knowledge and kindness. We are grateful for Dr. Han."
Oct 12, 2024
5.0
"Women's Center cares !"
Oct 12, 2024
5.0
"Dr Han is an amazing doctor. I would not hesitate to recommend him. He is smart, thoughtful, and kind. I trust him completely."
Oct 9, 2024
4.7
"Dr Han discussed my case with knowledge and care."
Sep 9, 2024
4.7
"In my experience, Dr. Han is always an attentive and clear communicator."
Aug 31, 2024
5.0
"I value and respect so much Dr. Han's opinion. His thoughtful and inclusive approach is incredibly helpful. Because he shares his thought process, I learn so much and that is crucial to my long term health care amd self care."
Aug 31, 2024
5.0
"Dr. Han is the absolute best!!!!"
Aug 29, 2024
5.0
"He is very knowledgeable about my treatment and had obviously a great interest in his field."