One of the world’s leading comprehensive cancer centers. To make an appointment: 877-871-9362 One of the world’s leading comprehensive cancer centers. To make an appointment, call (844)-422-9799 Mission Memorial Sloan Kettering Cancer Center's mission is to lead in the prevention, diagnosis, treatment, and cure of cancer and associated diseases through programs of excellence in research, education, and outreach, and cost-effective patient care.​​ Purpose and Promise Memorial Sloan Kettering is a community of exceptional people united by a clear, single-minded purpose: conquering cancer. To succeed in an ever-changing healthcare landscape, we need to be clear about who we are as an organization, what we do, and why we do it. Ensuri​​ng the integrity of the MSK brand is one of our most important responsibilities.​ We are relentless. We are united. We care. We are OneMSK.