Andrew S Dunn
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Andrew S Dunn, MD

Internal Medicine, Hospital Medicine

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About Me

Dr. Dunn received his medical degree at the New York University School of Medicine. He performed his internship and residency at Mount Sinai Medical Center and stayed on as faculty after completion. He is currently professor of Medicine and Chief of the Division of Hospital Medicine in the Department of Medicine for the Mount Sinai Health System. His research interests are in anticoagulation and thrombosis, most specifically in venous thromboembolism, atrial fibrillation, and the perioperative management of warfarin.  Dr. Dunn has collaborated and led national studies in this field, including a multicenter North American study on the perioperative management of oral anticoagulation. He lectures nationally on various topics in anticoagulation and has written numerous journal articles, including perioperative bridging therapy, outpatient treatment of deep vein thrombosis, and the prevention of venous thromboembolism for medical inpatients.  His work has been published in the American Journal of Medicine, Archives of Internal Medicine, Journal of Thrombosis and Thrombolysis, and NEJM.  In addition, Dr. Dunn is a co-author of the American College of Chest Physician’s guidelines on anticoagulation and thrombosis.  Dr. Dunn is a Fellow of the Society of Hospital Medicine, Fellow of the American College of Physicians (ACP), a member of ACP’s Board of Regents, and will become Chair of the ACP’s Board of Regents in 2018.

Please read his latest article in Our Town, "Don’t Hold Off on Your Health: Getting Checked Now May Save Your Life."


Clinical Interests
  • Anticaogulation and Thrombosis
  • Outpatient Deep Vein Thrombosis Treatment
  • Mathematical Modelling of Warfarin Dose Adjustments
Clinical Programs
  • Director, The Mount Sinai Hospital Outpatient DVT Treatment Program
  • Director, Early Discharge on Warfarin Program
  • Community Acquired Pneumonia Clinical Pathways Project
  • Director, Primary Care Anticoagulation Service

PROFESSOR | Medicine, Hospital Medicine
Hospital Affiliations
  • Mount Sinai Morningside
  • Mount Sinai Beth Israel
  • Mount Sinai Brooklyn
  • Mount Sinai Queens
  • The Mount Sinai Hospital
  • New York Eye and Ear Infirmary of Mount Sinai
  • Mount Sinai West