Dr. Sidharth V. Puram is an Associate Professor at the Department of Otolaryngology Head and Neck Surgery, the Chief of the Division of Head and Neck Surgery, and the Director of the Robert Ebert and Greg Stubblefield Head and Neck Tumor Center. He earned a Ph.D. and MD in Biology and Biomedical Science at the Harvard Medical School, Boston, MA, USA. His expertise areas include head and neck cancer, head and neck surgery, thyroid cancer, head and neck reconstruction, salivary gland disease, and transoral robotic surgery. His research focuses on understanding tumor heterogeneity in head and neck cancer, and how heterogeneity among malignant, stromal, and immune cells may contribute to prognosis, treatment response/resistance, and underlying cancer biology.