Mark David Siegel MD

Professor of Medicine (Pulmonary); Co-Chair, Ethics Committee, Yale-New Haven Hospital; Program Director, Traditional Internal Medicine Residency

Departments & Organizations

Palliative and End-of-Life Care Education

Yale Medical Group

Program for Biomedical Ethics

Office of Student ResearchInternal Medicine: Pulmonary, Critical Care & Sleep Medicine: Winchester Chest Clinic, Tuberculosis Center; Internal Medicine ClerkshipBrain Aneurysm & AVM Program


Dr. Siegel graduated from the Columbia University College of Physicians and Surgeons in 1988 and completed his residency in Internal Medicine at the Hospital of the University of Pennsylvania in 1991. He was a Pulmonary & Critical Care fellow at Yale from 1992-95 and has been a full time Yale faculty member since then. Dr. Siegel is Board Certified in Internal Medicine, Pulmonary Medicine, and Critical Care Medicine. He is the Director of Medical Critical Care at Yale-New Haven Hospital and the co-chair of the Hospital Bioethics committee. His major clinical focus is in the Intensive Care unit and he attends several months per year in the Medical and Neurosciences Intensive Care Units. Dr. Siegel serves on the Editorial Boards of Critical Care Medicine and the American Journal of Medicine. He is the recipient of several teaching awards and has participated in several multi-center trials investigating new therapies for the treatment of critical illness.


  • M.D., College of Physicians & Surgeons, Columbia Univ , 1988

Selected Publication

  • Azoulay E, Siegel MD. Self-Efficacy Approaches to Improving End-Of-Life Care for the Critically Ill: ineffective, insufficient or inconclusive? Am J Respir Crit Care Med 2011;183 288-290.

Latest Honor and Recognition

  • Howard M. Spiro Faculty Teaching Award(1999) , Yale Medical School