He is Section Chief of Head and Neck Endocrine Surgery and Associate Medical Director of the Endocrine Center at MD Anderson Cancer Center. Dr. Zafereo holds national committee appointments for the American Head and Neck Society, American Academy of Otolaryngology-Head and Neck Surgery, and American Board of Otolaryngology-Head and Neck Surgery, and he is a Past President of the Houston Society of Otolaryngology-Head and Neck Surgery. He has published extensively on Thyroid and other Head & Neck cancers, speaking nationally and internationally. His clinical practice focuses on patients with thyroid cancer and parathyroid neoplasms.