John T. Potts, Jr., MD is the Distinguished Jackson Professor of Clinical Medicine at Harvard Medical School and Massachusetts General Hospital, Endocrine Unit. He is a co-author author of Endocrinology, 7th Edition.

After medical training at the University of Pennsylvania School of Medicine, Dr. Potts did his internship and residency at Massachusetts General Hospital, and then went to the National Institutes of Health to work with Nobel Laureate Christian Anfinsen in protein chemistry. Dr. Potts remained at the NIH from 1959 to 1968, when he returned to MGH as Chief of the Endocrine Unit. He served as Chairman of the Department of Medicine and Physician-in-Chief from 1981 to 1996, and was Director of Research from 1995 to 2004.

An internationally recognized authority on calcium metabolism and the hormonal mechanisms that govern it, Dr. Potts has been a pioneer in the chemistry and biology of parathyroid hormone (PTH) and its role in clinical disorders of bone and mineral ion metabolism. The author or co-author of over 500 scientific publications, Dr. Potts’ accomplishments have been recognized with a series of honors, including the Fred Conrad Koch Award of the Endocrine Society, as well as election to the National Academy of Sciences, the Institute of Medicine, and the American Academy of Arts and Sciences. He holds active and honorary memberships in numerous scientific and professional organizations.