John Diaz is a Gynecologic Oncologist and an Oncologist in Miami, Florida. Dr. Diaz is highly rated in 17 conditions, according to our data. His top areas of expertise are Ovarian Cancer, Malignant Mixed Mullerian Tumor, Ovarian Carcinosarcoma, Sertoli-Leydig Cell Tumor, and Hysterectomy. Dr. Diaz is currently accepting new patients.