Dr. Mario M. Leitao

Memorial Sloan Kettering Cancer Center — the world’s oldest and largest private cancer center — has devoted more than 135 years to exceptional patient care, innovative research, and outstanding educational programs. Today, we are one of 51 National Cancer Institute–designated Comprehensive Cancer Centers, with state-of-the-art science flourishing side by side with clinical studies and treatment.

The close collaboration between our physicians and scientists is one of our unique strengths, enabling us to provide patients with the best care available as we work to discover more-effective strategies to prevent, control, and ultimately cure cancer in the future. Our education programs train future physicians and scientists, and the knowledge and experience they gain at Memorial Sloan Kettering has an impact on cancer treatment and biomedical research around the world.