Dr. Musi then completed a clinical and research fellowship in Endocrinology and Metabolism at the Joslin Diabetes Center-Beth Israel Deaconess Medical Center and Harvard Medical School in 2001 after which he joined the Harvard faculty. Recruited to The University of Texas Health Science Center at San Antonio (UTHSCSA)in 2003, he served as Associate Director for clinical research at the Texas Diabetes Institute. Upon being named Director of the Barshop Institute in 2013, Dr. Musi also serves as Director of the San Antonio Geriatric Research, Education and Clinical Center (GRECC), and is the appointed Director of the newly established UTHSCSA Medical Schools Center for Healthy Aging.