Physician Photo

Walter H. Dzik, MD

Associate Pathologist, Massachusetts General Hospital

Associate Professor of Pathology, Harvard Medical School

Dr. Dzik's interests range from clinical trials research of blood transfusion in children in Uganda, to improving patient safety in hospitals, and mentoring the Department's trainees in academic Transfusion Medicine.

Department of Pathology
Department of Medicine
Clinical Interests
Transfusion medicine
Boston: Massachusetts General Hospital
Medical Education
MD, University of Pennsylvania School of Medicine
Residency, Boston Medical Center
Fellowship, Boston Medical Center
Fellowship, National Institute of Health
Board Certifications
Hematology, American Board of Internal Medicine
Blood Banking & Transfusion Medicine, American Board of Pathology
Internal Medicine, American Board of Internal Medicine
Patient Age Group
Accepting New Patients
Accepting New Patients


Dr. Dzik is Editor of Transfusion Medicine Reviews. His clinical interests are in transfusion medicine, hemostasis, and non-cancer hematology. In addition, he is devoted to mentoring the next generation of leaders in academic Transfusion Medicine. He is currently collaborating with a former Massachusetts General Hospital trainee on NIH-funded research on transfusion in profound anemia among children with malaria in Uganda. Dr. Dzik is a member of the Massachusetts General Hospital Center for Global Health, and is a Pathology Global Health Program Research Investigator with a special interest in transfusion medicine in Uganda.


In collaboration with MGH Hematology and with other clinical divisions at MGH, the Blood Transfusion Service conducts clinical research in the disciplines of transfusion medicine, hemostasis and thrombophilia. The Blood Transfusion Service is a member of the NHLBI Clinical Trials Network in Transfusion Medicine and Hemostasis.

Dr. Dzik is a founding member of the Biomedical Excellence for Safer Transfusion (BEST) Collaborative. In 2002, Dr. Dzik led a large, international, multicenter BEST Study focused on blood grouping errors due to miscollected samples. A previous international study with this group focused on standardization of CD34+ cell counting during progenitor cell collections.

In addition to these large clinical trials, Sunny Dzik's research interests include management of the coagulopathy of liver disease, clinical use of blood components, biologic consequences of recipient exposure to allogeneic donor leukocytes, and patient safety in transfusion. Studies are currently underway on oxygen delivery to children with profound anemia due to malaria.

For a list of co-authors, related research concepts, and a timeline, visit Dr. Dzik's profile page at the Harvard Clinical and Translational Science Center.


View my most recent publications at PubMed

  1. Anti-HLA alloantibodies in surgical patients refractory to platelet transfusion. Pe?a JR, Saidman SL, Girouard TC, Meister E, Dzik WH, Makar RS. Am J Hematol. 2014 Sep;89(9):E133-7. doi: 10.1002/ajh.23757. Epub 2014 Jun 19.
  2. Testing only donors with a prior history of pregnancy or transfusion is a logical and cost-effective transfusion-related acute lung injury prevention strategy. Powers A, Stowell CP, Dzik WH, Saidman SL, Lee H, Makar RS. Transfusion. 2008 Dec;48(12):2549-58. doi: 10.1111/j.1537-2995.2008.01902.x. Epub 2008 Aug 20.
  3. ADAMTS13 binds to CD36: a potential mechanism for platelet and endothelial localization of ADAMTS13. Davis AK, Makar RS, Stowell CP, Kuter DJ, Dzik WH. Transfusion. 2009 Feb;49(2):206-13. doi: 10.1111/j.1537-2995.2008.01978.x.

Pathology Associates
55 Fruit Street
Boston, MA 02114-2696

Phone: 617-726-3715
Fax: 617-726-6832

55 Fruit Street
Boston, MA 02114-2696

Phone: 617-726-3715