Douglas Ross is a Professor of Medicine at Harvard Medical School and Co-Director of the Massachusetts General Hospital Thyroid Clinic. He received his medical degree from Harvard Medical School. He completed his residency in internal medicine and his fellowship in endocrinology at the Massachusetts General Hospital. He is Thyroid Section Editor of UpToDate, and is an Associate Editor of Thyroid. He has previously been on the editorial board of the Journal of Clinical Endocrinology and Metabolism. He served as a member (2011) and chair (2016) of the American Thyroid Association’s Hyperthyroidism Guidelines Task Force. He was a member of the National Thyroid Cancer Treatment Cooperative Study Group, where he focused on outcomes of patients with papillary microcarcinoma.