Mark Chang Hwa Liu, MD

Dr. Chen practices Pulmonary and Critical Care Medicine. His primary area of interest is sarcoidosis, and he has extensive experience in the diagnosis and treatment of sarcoidosis in all of its forms, and the management of consequences of this systemic disease.The Sarcoidosis Clinic often serves to coordinate management of patients with multi-organ involvement with sarcoidosis, and to this end Dr. Chen actively maintains clinical and research collaborations with Cardiology, Cardiovascular Nuclear Medicine, Neurology, and Ophthalmology.Additionally, Dr. Chen participates as a Physician Champion in the Johns Hopkins Health System Epic project to improve the safety and quality of care of critically ill patients through optimization of the electronic medical record. His work involves developing systems-based approaches to complex management issues, including sepsis and severe alcohol withdrawal.

Matthew Lammi, MD MSCR is an Associate Professor of Medicine and part of the Interstitial Lung Disease (ILD) Program. Dr. Lammi obtained his medical degree from Temple University School of Medicine and did his internal medicine, pulmonary, and critical care training at Temple University Hospital. He then joined the faculty at LSU in New Orleans, where he served as the Director of the Comprehensive Pulmonary Hypertension Center. He joined Johns Hopkins in 2023. He currently serves as the Associate Director of the Johns Hopkins Pulmonary Fibrosis Foundation Care Center and is the Associate Program Director for the Advanced Lung Disease Fellowship. His research focuses on the intersection between ILD and pulmonary hypertension, particularly in patients with systemic sclerosis. He is currently a co-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 active in numerous societies and serves as the Chair of the Research Committee for the Pulmonary Hypertension Association.