Photo of Robert Paul Hasserjian, MD

Robert Paul Hasserjian, MD

  • Associate Pathologist, Massachusetts General Hospital
  • Director, Hematopathology Fellowship Program, Pathology Service
  • Associate Professor of Pathology, Harvard Medical School


Accepting New Patients

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Dr. Hasserjian works closely with oncologists and other hematologists to provide optimal patient care. He lectures regularly at continuing medical education courses at medical schools throughout the United States.



Centers & Specialties

Cancer Center

Clinical Interests
  • Hematopathology
  • Gastrointestinal (GI) pathology
Medical Education
  • MD, Harvard Medical School
  • Residency, Brigham and Women's Hospital
  • Fellowship, Brigham and Women's Hospital
Board Certifications
  • Anatomic Pathology
  • Hematology
Foreign Languages
  • French
  • Armenian
  • German
  • Russian
  • Boston: Massachusetts General Hospital
Insurances Accepted
  • Aetna Health Inc.
  • Beech Street
  • Blue Cross Blue Shield - Blue Care 65
  • Blue Cross Blue Shield - Indemnity
  • Blue Cross Blue Shield - Managed Care
  • Blue Cross Blue Shield - Partners Plus
  • BMC HealthNet Mass Health MCO/ACO
  • Cigna (PAL #'s)
  • Commonwealth Care Alliance
  • Fallon Community HealthCare
  • Great-West Healthcare (formally One Health Plan)
  • Harvard Pilgrim Health Plan - PBO
  • Health Care Value Management (HCVM)
  • Humana/Choice Care PPO
  • MassHealth
  • Medicare
  • Medicare - ACD
  • Neighborhood Health Plan - ACD
  • Neighborhood Health Plan - PBO
  • OSW - Maine
  • OSW - New Hampshire
  • OSW - Rhode Island
  • OSW - Vermont
  • Private Health Care Systems (PHCS)
  • Railroad Medicare
  • Railroad Medicare - ACD
  • Senior Whole Health
  • TriCare
  • Tufts Health Plan
  • Unicare
  • United Healthcare (non-HMO) - ACD
  • United Healthcare (non-HMO) - PBO
  • Well Sense Pediatrics

Note: This provider may accept more insurance plans than shown; please call the practice to find out if your plan is accepted.

Patient Age Group
Adult and Pediatric
Provider Gender


Dr. Hasserjian's clinical work and research focus on myeloid neoplasia.  He has served on the Executive Committee of the Society for Hematopathology and on the Education Committee of the United States and Canadian Academy of Pathology. Dr. Hasserjian is a member of the Pathology Advisory Committee for the World Health Organization Classification of Myeloid Neoplasms. Dr. Hasserjian is a dedicated medical educator, and director of the Hematopathology Fellowship at Massachusetts General Hospital.

Research & Publications

Research Summary

Dr. Hasserjian's research interests include:

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

For more information about research concepts, co-authors, and to see a timeline, visit  Dr. Hasserjian?s profile at the Harvard Clinical and Translational Science Center.


View my most recent publications at PubMed

  1. Chronic lymphocytic leukemia/small lymphocytic lymphoma: another neoplasm related to the B-cell follicle? Tandon B, Swerdlow SH, Hasserjian RP, Surti U, Gibson SE.Leuk Lymphoma. 2015 Apr 10:1-33. [Epub ahead of print]
  2. Routine conventional karyotyping of lymphoma staging bone marrow samples does not contribute clinically relevant information. Nardi V, Pulluqi O, Abramson JS, Dal Cin P, Hasserjian RP.  Am J Hematol. 2015 Mar 16.[Epub ahead of print]
  3. Allo-SCT for myelofibrosis: reversing the chronic phase in the JAK inhibitor era? Tamari R, Mughal TI, Rondelli D, Hasserjian R, Gupta V, Odenike O, Fauble V, Finazzi G, Pane F, Mascarenhas J, Prchal J, Giralt S, Hoffman R. Bone Marrow Transplant. 2015 Feb 9. doi: 10.1038/bmt.2014.323. [Epub ahead of print]


Pathology Associates
55 Fruit Street
Boston, MA 02114-2696
Phone: 617-724-1445
Fax: 617-726-7474

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