Dr Sahay is pulmonologist with extensive clinical and research interest in pulmonary vascular diseases. He works at Pulmonary Hypertension Comprehensive Care Center at the Houston Methodist Hospital, Houston, Texas where he is co-director for PH and CTEPH programs. He currently serves as PI on many clinical trials. He is member of ACCP CHEST PVD network. He has published numerous scientific papers related to pulmonary hypertension and was awarded ACCP CHEST PAH research grant in 2017. Dr. Sahay also serves on editorial board for pulmonary circulation journal and Associated Editor for Respiratory Medicine Journal. He considers taking care of PH patients as one of the most satisfying experience.

Timothy Fernandes, MD, MPH, is a board-certified pulmonologist who focuses on pulmonary vascular disease. He has a special interest in caring for patients who have venous thromboembolism, pulmonary arterial hypertension, and chronic thromboembolic pulmonary hypertension.

Dr. Fernandes is active in clinical research investigating the progression of acute pulmonary embolism to chronic thromboembolic disease (CTEPH), and patient outcomes following pulmonary endarterectomy (PTE) surgery. He has been awarded the CHEST Foundation Clinical Research Grant in Pulmonary Arterial Hypertension, and the Thrombosis and Hemostasis Summit of North America Travel Award.


Dr. Fernandes completed his fellowship training at UC San Diego School of Medicine and his residency at Case Western Reserve University School of Medicine, where he served as chief medical resident from 2009-2010. He earned his medical degree at University of Cincinnati College of Medicine. Dr. Fernandes is board certified in critical care medicine, pulmonary disease and internal medicine and is a fellow of the College of Chest Physicians.