Todd Brown, MD, PhD is the primary endocrine consultant to the Johns Hopkins HIV Clinic. His research focuses on metabolic, endocrine, and skeletal abnormalities observed in HIV-infected patients. He is the co-chair of the Executive Committee of the MACS WIHS Combined Cohort Study and has served in leadership positions for the ACTG. He has mentored multiple trainees from across the country and around the world in the area of HIV Comorbidities and Aging. He has published widely on the topic of HIV and endocrine conditions and lectures internationally on this and other issues related to metabolic diseases in HIV.