Ole-Petter R. Hamnvik, M.B. B.Ch. B.A.O., M.M.Sc., M.R.C.P.I., is a clinician-educator in the Mass General Brigham Division of Endocrinology, Diabetes, and Metabolism at Brigham and Women’s Hospital in Boston, MA, and an Associate Professor of Medicine at Harvard Medical School. He is the Program Director of the Brigham and Women’s Hospital Endocrinology Fellowship. His clinical practice focuses on general endocrinology and gender-affirming hormone therapy for transgender and gender-diverse people. Dr. Hamnvik serves as Education Editor for NEJM Group, providing editorial oversight of digital learning initiatives for clinicians and trainees.