Aparna Balasubramanian, MD

Dr. Catherine Simpson is an assistant professor of medicine at the Johns Hopkins University School of Medicine. Her areas of clinical expertise include internal medicine, pulmonary and critical care medicine, and pulmonary vascular diseases. Dr. Simpson earned her M.D. from the Louisiana State University School of Medicine. She completed her residency at Johns Hopkins, where she also performed a fellowship in pulmonary and critical care medicine and earned her M.H.S. degree from the Johns Hopkins Bloomberg School of Public Health.

Stephen C. Mathai, MD, MHS is an Associate Professor of Medicine and part of the Johns Hopkins Pulmonary Hypertension Program. Dr. Mathai received his undergraduate degree from Rutgers College and medical degree from Jefferson Medical College. He pursued residency training in Internal Medicine at Thomas Jefferson University Hospital, where he also served as Chief Medical Resident. Dr. Mathai came to Johns Hopkins for fellowship training in Pulmonary and Critical Care Medicine. During his 5-year fellowship, he obtained a Masters of Health Science degree from the Johns Hopkins Bloomberg School of Public Health and successfully competed for an individual Ruth L. Kirschstein National Research Service Award. Subsequently, he received a K23 award for his research in pulmonary vascular disease in scleroderma. He currently serves as Co-Principal Investigator for the Johns Hopkins PVDOMICS program supported by the NIH and is principal investigator for a clinical trial of therapy for scleroderma associated pulmonary hypertension supported by the Department of Defense Peer Reviewed Medical Research Program. He is also the Co-Director of the Ann Dana Kusch Multidisciplinary Program for Interstitial Lung Disease and Pulmonary Hypertension.Dr. Mathai has been active in numerous committees and holds several leadership positions in academic societies. He is the current chair of the Pulmonary Vascular Disease Network for the American College of Chest Physicians and has served on the steering committee for this organization for the past 4 years. He has served on several committees for the Pulmonary Circulation Assembly of the American Thoracic Society, including the Program Committee and Nominations Committee. He has organized symposia and delivered presentations related to pulmonary hypertension at numerous international meetings. He is the author of more than 100 publications and has given invited research lectures nationally and internationally. Dr. Mathai is also an active member of patient advocacy organizations. Currently, he is a member of the Scientific Leadership Council of the Pulmonary Hypertension Association where he serves as national chairperson of the Preceptorship Program Planning Committee. He is also a member of the Rare Disease Advisory Panel for the Patient Centered Outcomes Research Institute. Dr. Mathai also serves as the faculty leader of the inpatient pulmonary service, the Carol Johns Service, where he is responsible for the education of the internal medicine housestaff and pulmonary fellows. He has also received the Frederick L. Brancati Award for mentorship from the Department of Medicine at Johns Hopkins.