John P. Diaz, M.D., is a board-certified gynecologic oncologist at Miami Cancer Institute. Dr. Diaz provides comprehensive and compassionate gynecologic cancer care for women with endometrial, ovarian, cervical, vaginal or vulvar cancer. He has extensive training and experience in robotic and minimally invasive surgery, which results in shorter hospital stays and faster recovery times for patients. He is fluent in English and Spanish. 

Dr. Diaz completed his gynecologic oncology fellowship at Memorial Sloan-Kettering in New York and received the Department of Surgery Chairman’s Award. He currently serves as an associate professor for the Department of Obstetrics and Gynecology at Florida International University. 

As director of minimally invasive gynecologic surgery, Dr. Diaz leads the only Center of Excellence in Minimally Invasive Gynecologic Surgery in South Florida. There, he and his colleagues perform thousands of robotic surgeries each year. 

Passionate about furthering the field of gynecologic oncology, Dr. Diaz leads Miami Cancer Institute’s gynecologic oncology research and clinical trials program. This program offers innovative treatments and advanced technologies to women in South Florida. 

His research interests include novel surgical techniques for ovarian cancer and innovative cancer therapies, including hyperthermic intraperitoneal chemotherapy and immunotherapy. In 2019, Dr. Diaz was awarded a $1.8 million grant to investigate immunotherapy and PARP inhibitors for cervical cancer treatment. 

Dr. Diaz’s research has been published in numerous peer-reviewed medical journals, such as Oncology, Gynecologic Oncology, the Journal of Minimally Invasive Gynecology, the American Journal of Obstetrics and Gynecology, and Gynecologic Oncology Reports. He is also a reviewer for Gynecologic Oncology, BioMed Cancer, International Journal of Gynecologic Oncology and the Annals of Surgical Oncology. 

He has been an invited speaker and presented his research nationally and internationally at the Society of Gynecologic Oncology, American Society of Clinical Oncology, International Gynecologic Cancer Society and many others.

Dr. Diaz also holds many leadership and committee positions within various organizations, including the Society of Gynecologic Oncology and the American College of Obstetrics and Gynecology.  

He takes a holistic, multidisciplinary approach to patient care. Dr. Diaz is with his patients through every step of their treatment process, from diagnosis to surgery to chemotherapy to follow-up care. He takes the time to listen to each patient’s questions and goals and works closely with them to develop a tailored treatment plan. 

Dr. Diaz also encourages his patients to take advantage of Miami Cancer Institute’s nutrition, physical therapy and mental wellness programs to maximize their quality of life during their cancer journey. 

When he is not treating patients, Dr. Diaz enjoys spending time with his family and participating in outdoor activities, including white water rafting, skiing, and boating. 

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