Roger Fan, M.D.

Dr. Fan is originally from North Carolina. He earned his undergraduate degree in applied and computational mathematics from the University of North Carolina. He then earned his Doctor of Medicine from Vanderbilt University School of Medicine. He completed his residency training in internal medicine and fellowship training in pulmonary and critical care medicine at UT Southwestern. He also completed a postdoctoral research fellowship in the Laboratory of Joel Elmquist where he began investigating the role of hypothalamic signaling in sepsis. 

His ongoing research focuses on how specific hypothalamic circuits, particularly those involving proopiomelanocortin (POMC) neurons, regulate inflammation, autonomic function, and metabolic adaptation during sepsis. Dr. Fan aims to identify neural pathways that modulate host resilience and could serve as therapeutic targets in critical illness. 

In parallel with his research, Dr. Fan is dedicated to excellence in clinical care. He is board certified in internal medicine, pulmonary disease, and critical care medicine. Dr. Fan practices general pulmonology and critical care medicine at UT Southwestern Medical Center and Parkland Hospital, where he cares for patients with a wide range of respiratory and critical illnesses. He is passionate about delivering thoughtful, evidence-based care in high-acuity settings, including the intensive care unit and inpatient consult services.