Dr. Clifford A. Hudis

Dr. Clifford A. Hudis, MD, is a board-certified medical oncologist with a distinguished career focused on the treatment and study of breast cancer. He served as Chief of the Breast Medicine Service at Memorial Sloan Kettering Cancer Center from 1998 to 2016, building a long record of clinical leadership and expertise in the field. He subsequently became Chief Executive Officer of the American Society of Clinical Oncology (ASCO), one of the most prominent oncology organizations in the world. His clinical practice has been dedicated exclusively to the care of patients with breast cancer.

Dr. Hudis has broad interests in cancer prevention, diagnosis, and treatment, with particular expertise in the medical management of breast cancer. His tenure as Chief of the Breast Medicine Service at Memorial Sloan Kettering spanned nearly two decades, during which he shaped one of the leading breast oncology programs in the country. His transition to the role of CEO at ASCO reflects the depth of his influence on the broader oncology community, extending his impact well beyond the clinic and into national and international cancer policy and education.

A respected leader and clinician, Dr. Hudis has contributed significantly to shaping standards of care for patients with breast cancer through both his clinical work and his organizational leadership. His commitment to advancing the field is reflected in his long tenure at the helm of major institutions dedicated to cancer care and research. Through his roles at Memorial Sloan Kettering and ASCO, he has remained a central figure in the ongoing effort to improve outcomes for patients with breast cancer across the United States and globally.