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Mark David Siegel, MD

Professor of Medicine (Pulmonary); Program Director, Internal Medicine Traditional Residency Program

Contact Information

Mark David Siegel, MD

Patient Care Location

Mailing Address

  • Pulmonary, Critical Care & Sleep Medicine

    PO Box 208057, 300 Cedar Street

    New Haven, CT 06520-8057

    United States



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 was previously co-chair of the Hospital Bioethics committee. His major clinical focus is in the Intensive Care unit and he attends in the MICU and on the General Internal Medicine services. Dr. Siegel serves on the Editorial Boards of Critical Care Medicine, Chest, 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. He currently serves as Program Director of the Yale Traditional Internal Medicine Residency.

Education & Training

  • Fellow
    Yale University School of Medicine (1995)
  • Resident
    Hospital of the University of Pennsylvania (1991)
  • MD
    College of Physicians & Surgeons, Columbia Univ (1988)


  • Critical Care
    San Salvador, San Salvador, El Salvador 2009
    Visiting Professor
  • Critical Care
    Iran 2004
    Lecture Series, Pulmonary Conference

Honors & Recognition

AwardAwarding OrganizationDate
Teacher-of-the-Year AwardDepartment of Internal Medicine2010
Faculty Achievement Award, Clinical CareDepartment of Medicine2007
Leonard Tow Humanism in Medicine AwardYale University2006
Teacher-of-the-Year AwardDepartment of Internal Medicine2005
Teacher-of-the-Year AwardDepartment of Internal Medicine2000
Howard M. Spiro Faculty Teaching AwardYale Medical School1999

Professional Service

American Thoracic SocietyEthics and Conflict of Interest Committee2009 - 2017
Yale Medical Group Board of GovernorsPractice Safety & Quality Committee2009 - 2010
Yale-New Haven HospitalOrgan Donation Committee2008 - 2011
Yale Medical GroupCredentials Committee2002 - 2010
Yale-New Haven HospitalBioethics Committee1996 - 2017

Departments & Organizations