Michael S. Irwig, MD, is a board-certified endocrinologist at Beth Israel Deaconess Medical Center and a member of the faculty at Harvard Medical School. Dr. Irwig is a general endocrinologist with a particular interest and expertise in androgens and transgender care. His research has focused on men with persistent sexual and non-sexual side effects of finasteride (Propecia), transgender health and men with borderline testosterone levels.
He has over 40 peer-reviewed articles and his research findings have been featured in many national and international mainstream publications and broadcast outlets including: The Today Show, NBC Nightly News, ABC World News, CBS News, MSNBC.com, CNN, Men’s Health Magazine, Men’s Journal, and The Philadelphia Inquirer. Dr. Irwig has presented over 100 invited lectures at hospitals, medical schools and conferences across the world on male hypogonadism and transgender health. He is on the editorial board of Endocrine Practice and serves as a reviewer for over 40 peer-reviewed medical journals. He is the past president of the mid-Atlantic chapter of the American Association of Clinical Endocrinologists (AACE). He serves on national committees for AACE, the Endocrine Society, and the World Professional Association for Transgender Health (WPATH). Dr. Irwig received his MD from Cornell University with honors in research. He completed his residency in internal medicine at the University of Virginia. He was a senior fellow in endocrinology, metabolism, and nutrition at the University of Washington in Seattle.