Division of Gynecological Oncology

2024-25 USNWR Gynecological Cancer Surgery
City of Hope’s Division of Gynecological Oncology offers certain minimally invasive techniques as part of treatment for most gynecological cancers, reducing the scarring, blood loss and pain associated with traditional surgery. We also offer preventative surgery for women at high risk for developing cancer.
Our experts apply many of the latest technological advances to make minimally invasive surgery even better. We are one of the few institutions to operate four da Vinci S HD Surgical Systems – the most advanced robotic surgery systems available.
Our team possesses a thorough knowledge of robotics, due to both our large volume of patients and expertise across a wide variety of procedures. The robotic surgical approach results in smaller incisions, reducing trauma to the patient and assisting in quicker healing. This means our patients will feel better faster and return sooner to their normal lives.
Our team of surgical experts treat all types of gynecologic cancers, including:

Gynecologic Oncology Surgery Team

Joshua G. Cohen, M.D., F.A.C.O.G., F.A.C.S., is a board-certified gynecologic oncologist dedicated to offering his patients in Orange County empathy and excellence in clinical care.

Maria de Leon
Maria C.B. de Leon, M.D.
Gynecologic Oncologist

Maria de Leon, M.D., is an assistant clinical professor in City of Hope's Division of Gynecologic Oncology, specializing in diagnosis and treatment of cervical, endometrial/uterine and ovarian cancers.

Thanh H. Dellinger, M.D.
Thanh H. Dellinger, M.D.
Gynecologic Oncologist

Thanh H. Dellinger, M.D., is a gynecologic oncologist focusing on ovarian cancer, cervical cancer, uterine cancer, robotic surgery and fertility sparing cancer treatments.

Amy Hakim
Amy Hakim, M.D., M.S.
Gynecologic Oncologist

Amy Hakim, M.D., is a surgical oncologist dedicated to treating gynecological cancers. In addition to providing gynecological surgery options to treat cancer, Dr. Hakim is also studying the connection these cancers’ connection to then human papillomavirus (HPV) and the HPV vaccine.

Ernest S. Han, M.D., Ph.D.
Ernest S. Han, M.D., Ph.D.
Gynecologic Oncologist

Ernest Han, M.D., Ph.D., is a gynecologic oncologist with specialized training in minimally invasive and robotic-assisted surgery.

Meet Gynecologic Oncologist Mehdi M. Kebria, M.D.
Mehdi M. Kebria, M.D.
Gynecologic Oncologist

Mehdi M. Kebria, M.D., is a gynecologic oncologist and associate clinical professor in the Division of Gynecologic Oncology within the Department of Surgery.

Stephen Lee
Stephen J. Lee, M.D.
Gynecologic Oncologist

Stephen Lee, M.D., is a gynecologic oncologist focusing on ovarian cancer, uterine (endometrial) cancer, cervical cancer, and robotic surgery.

Meet Gynecologic Oncologist Wei-Chien Michael Lin, M.D.
Wei-Chien Michael Lin, M.D.
Gynecologic Oncologist

Wei-Chien Michael Lin, M.D., is a gynecologic oncologist at City of Hope's Mission Hills and Santa Clarita, California, locations.

Lorna Rodriguez-Rodriguez, M.D., Ph.D.
Gynecologic Oncology Surgeon

Lorna Rodriguez-Rodriguez, M.D., Ph.D., is eagerly continuing her ovarian cancer investigations at City of Hope, which she calls “the perfect environment” that's home to “many amazing scientists and clinicians (with) similar goals about making discoveries to cure cancer.”

Mihae Song, MD
Mihae Song, M.D.
Gynecologic Oncologist

Mihae Song, M.D., is a gynecologic oncologist in the Division of Gynecologic Oncology, Department of Surgery, at City of Hope.