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Robert Paul Hasserjian, MD

  • Phone: 617-724-1445
Department of Pathology


  • Cancer Center
  • Leukemia
Clinical Interests
Gastrointestinal pathology
Boston: Massachusetts General Hospital
Medical Education
MD, Harvard Medical School
Residency, Brigham and Women's Hospital
Fellowship, Brigham and Women's Hospital
Board Certifications
Anatomic Pathology, American Board of Pathology
Hematology, American Board of Pathology
Foreign Languages
Patient Age Group
Adult and pediatric
Accepting New Patients


Robert Paul Hasserjian

Associate Pathologist
Associate Director for Training and Education
Director, Hematopathology Fellowship Program
Massachusetts General Hospital

Associate Professor of Pathology
Harvard Medical School


Dr. Hasserjian trained in Anatomic Pathology and Hematopathology at Brigham & Women's Hospital and joined the pathology staff at Massachusetts General Hospital in 2002, where he is currently Director of the Hematopathology Fellowship and Associate Director of the Pathology Residency Program.

Dr. Hasserjian's clinical work and research focus on the pathogenesis and classification of myeloid neoplasia.  He was a member of the pathology advisory committee in the 2008 WHO Classification of Myeloid Neoplasms and currently serves on the Executive Committee of the Society for Hematopathology.

Updated 12/30/2011


Research interests include:

  • Molecular mechanisms of leukemia and lymphoma.
  • Novel pathologic, immunophenotypic, and molecular prognostic markers in myelodysplastic and myeloproliferative diseases, leukemias, and lymphomas

Pathology Associates
55 Fruit Street
Boston, MA 02114-2696

Phone: 617-724-1445
Fax: 617-726-7474

Pathology Associates
55 Fruit Street
Boston, MA 02114-2696

Phone: 617-724-1445
Fax: 617-726-7474

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