Gynecologic Oncology



Robert E. Bristow, MD, MBA, FACS
Professor, Department of Obstetrics and Gynecology
Director, Division of Gynecologic Oncology
University of California - Irvine, Medical Center

Dr. Robert Bristow's clinical expertise includes the surgical management of advanced gynecologic cancer, including ovarian, fallopian tube, and primary peritoneal cancers. In addition to the full range of complex surgical procedures, Dr. Bristow is also experienced in delivering Hyperthermic Intraperitoneal Chemotherapy (HIPEC) in conjunction with debulking operations. Dr. Bristow is also experienced minimally invasive surgeon with special expertise in robotic hysterectomy and surgical staging for endometrial cancer and cervical cancer.

Degree Major University Year
B.A. Psychology Pomona College 1987
M.D. Medicine University of Southern California 1991
MBA   John Hopkins Univ School of Business 2009
Residency Obstetrics and Gynecology John Hopkins Hospital 1995
Fellowship Gynecologic Oncology Cedars-Sinai Medical Center 1998


Philip J. DiSaia, MD
Professor, Obstetrics and Gynecology
Fellowship Director, Division of Gynecologic Oncology

Dr. Philip J. DiSaia is Professor and Fellowship Director of the Division of Gynecologic Oncology in the Department of Obstetrics and Gynecology. He is currently the Chair of the Gynecologic Oncology Group (GOG). He is board certified in both Obstetrics and Gynecology and Gynecologic Oncology. He is well known for his books "Clinical Gynecologic Oncology" (now in its eighth edition) and “ Danforth's Obstetrics & Gynecology." Dr. DiSaia has been honored with many awards nationally and internationally, including the Frederick Naftolin Award for Mentorship by the Society for Gynecologic Investigation (SGI) which recognized his contribution to training and career development of investigators in the field of reproductive and women's health.

Degree Major University Year
B.S. Biology Brown University 1959
M.D. Medicine Tufts University School of Medicine 1963
Residency Obstetrics and Gynecology Yale University School of Medicine 1967
Fellowship Gynecologic  Oncology Univ of Texas, MD Anderson Hospital 1971


Michael L. Berman, MD
Dr. Michael Berman is interested in improving the management of women with gynecologic cancers and those with complex gynecologic surgical conditions. He is widely recognized as a leader in this field, having developed new surgical procedures for a variety of complex gynecologic conditions, several of which have been published in the scientific literature. He is listed regularly in the Good Housekeeping magazine as among the “ Best Doctors for Women in the U.S." and in The Best Doctors in America: Pacific Region.


Degree Major University Year
B.S. Physical Sciences University of Maryland 1963
M.D. Medicine George Washington University 1967
Rotating Internship Surgery Colorado General Hospital 1968
Residency Obstetrics & Gynecology George Washington University 1969
Residency Obstetrics & Gynecology Harbor General Hospital  1974
Fellowship Gynecologic Oncology City of Hope National Medical Center
and UCLA Medical Center


Krishnansu S. Tewari, MD, FACOG, FACS
Associate Professor

Dr. Krishnansu Tewari's clinical interests are in the areas of women's health, cancer vaccines, and drug discovery for the treatment of gynecologic cancers. His clinical expertise allows him to perform a full array of operative procedures, including, advanced da Vinci® robotic surgery, complex laparoscopic surgery, radical pelvic operations, as well as intestinal, urologic, and fertility-preserving procedures. He is also recognized for vaginal reconstruction and other restorative operations. Dr. Tewari is currently the Principal Investigator for the Gynecologic Oncology Group's (GOG) first randomized trial of anti-angiogenesis drugs for cervical cancer. He is also conducting several ovarian cancer clinical trials at UC Irvine's Chao Family NCI-Designated Comprehensive Cancer Center.  Dr. Tewari's research has been funded through grants from the Chao Cancer Center and the Gynecologic Oncology Group. He has written numerous book chapters and scientific articles for medical journals, and is also credited for advancing issues surrounding the conduct of cancer in pregnancy for the well-being of both the mother and unborn child. Dr. Tewari is currently the President of the Orange County Ob/Gyn Society.


Major University


B.S. Molecular Biology University of California, Berkeley 1990
M.D. Medicine University of California, Irvine 1994
Residency Obstetrics & Gynecology University of California, Irvine 1998
Fellowship Gynecologic Oncology University of Califorina, Irvine 2002

Leslie Randall, MD
Assistant Professor

Dr. Leslie M. Randall completed her Fellowship training at UC Irvine's Division of Gynecologic Oncology in July of 2009. As a result, she is skilled in the comprehensive care of women with all gynecologic cancers, providing both medical and surgical cancer treatments. Dr. Randall has research interests in the investigation of new cancer treatments and the dissemination of prevention and screening information to the public. She is a member of the cooperative Gynecologic Oncology Group, and has presented research on their behalf at several professional society meetings. Dr. Randall is currently accepting new patients.


Degree Major University Year
B.S. Biotechnology University of Louisville 1997
M.D. Medicine University of Louisville 2001
Residency Obstetrics & Gynecology University of Louisville 2005
Fellowship Gynecologic Oncology University of Califorina, Irvine 2009