William B Mitchell

William B Mitchell, MD

  • ASSOCIATE PROFESSOR | Pediatrics, Hematology/Oncology


Pediatric Hematology-Oncology

Dr. William Beau Mitchell is an Associate Professor of Pediatric Hematology/Oncology at Kravis Children's Hospital at Mount Sinai, where he is the Director of Benign Hematology and Director of the Pediatric Hemophilia Treatment Center. His primary clinical focus is on hemophilia and other bleeding disorders, sickle cell disease, and platelet disorders. Dr. Mitchell attended Tufts University College of Medicine, completed his Pediatric Residency at Boston City Hospital, and completed his Pediatric Hematology/Oncology fellowship at Mount Sinai Hospital. His clinical experience has included directorship of the Weill Cornell Hemophilia Treatment Center. Dr Mitchell’s clinical research has focused on novel therapies for rare bleeding disorders such as hemophilia and ITP. His basic science research has focused on the production of platelets from stem cells and he remains active in that field. He has lectured nationally and internationally on his ongoing project to generate platelets from stem cells for clinical use. He has published widely, including invited reviews in both clinical and scientific journals.

Dr. Mitchell is board certified in Pediatric Hematology/Oncology by the American Board of Pediatrics.

Clinical Focus

  • Benign Hematology
  • Bleeding Disorders
  • Bone Marrow Failure
  • Coagulation Disorders
  • Hemophilia A & B
  • Hypercoagulability
  • Platelet Disorders
  • Sickle Cell Disease/Sickle Cell Anemia
  • Thalassemia Major And Minor
  • Thrombosis


MD, Tufts University School of Medicine

Residency, Pediatrics, Boston University Medical Center

Fellowship, Pediatric Hem/onc, Mount Sinai Hospital

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