Photo of Jay (Jay) Alan Fishman, MD

Jay (Jay) Alan Fishman, MD

  • Associate Director, Mass General Transplant Center
  • Director, Transplant Infectious Diseases and Compromised Host Program


Accepting New Patients


Jay Alan Fishman, MD, is Co-Director of the Mass General Transplant Center and directs active clinical, clinical research and basic science programs in the pathogenesis of infectious diseases related to solid organ and stem cell transplantation.


Infectious Diseases


Centers & Specialties

MassGeneral Hospital for Children

Transplant Center

Clinical Interests
  • Infection in immunocompromised hosts
  • Viral and fungal infections
  • Medical education
  • Infections after transplant
  • Molecular diagnostics
  • Infectious diseases
Medical Education
  • MD, Johns Hopkins University School of Medicine
  • Residency, Massachusetts General Hospital
  • Fellowship, Massachusetts General Hospital
Board Certifications
  • Infectious Disease
Foreign Languages
  • French
  • Boston: Massachusetts General Hospital
Insurances Accepted
  • Aetna Health Inc.
  • AllWays Health (NHP) - ACD
  • AllWays Health (NHP) - PBO
  • 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 - ACD
  • Harvard Pilgrim Health Plan - PBO
  • Health Care Value Management (HCVM)
  • Humana/Choice Care PPO
  • Maine Community Health Options (MCHO)
  • MassHealth
  • Medicare
  • Medicare - ACD
  • OSW - Connecticut
  • 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


Jay A. Fishman is Director of the Transplant Infectious Diseases and Compromised Host Program at the Mass General, Associate Director of the Mass General Transplant Center and Professor of Medicine at Harvard Medical School in Boston, MA. Dr. Fishman is an internationally recognized expert in infectious diseases related to transplantation and has trained many of the leaders in this field. He has a special interest in molecular diagnostics, transplant virology and mycology, and in medical education.

He is Past-President of the American Society of Transplantation and has served on the Boards of the International Transplant Infectious Disease and International Xenotransplanation Societies and of the Immunocompromised Host Society and is a frequent contributor at national and international symposia. He has been recognized by the Clinical Career Achievement Award of the American Society of Transplantation and the Transplantation Society Award for Transplant Infectious Disease. Dr. Fishman's clinical and research interests focus on the pathogenesis and prevention of infection in the immunocompromised host. His NIH-funded laboratory is investigating infectious disease issues related to xenotransplantation and the role of viral infections in transplantation.

Research & Publications

Research Summary

Dr. Fishman's research is focused on the pathogenesis of infections in immunocompromised hosts including:

  • Studies of the molecular biology of viruses associated with pig-to-primate xenotransplantation including porcine endogenous retrovirus, porcine lymphotropic herpesvirus, porcine cytomegalovirus
  • Large animal models of post-transplant lymphoproliferative disorders
  • Indirect effects of viral infection in solid organ and stem cell transplantation

Xenotransplantation: Studies of infection associated with interspecies transplantation have resulted in the identification of a variety of potential pathogens in pig-to-primate transplantation. This laboratory has achieved the first cloning and full-length sequencing of endogenous retroviruses from swine (PERV). A recombinant form of PERV (A-C) has been identified that is infectious for human cells in vitro. The mechanisms underlying this recombination and infectivity for human cells are under investigation.

Viral Infection in transplantation: Chronic allograft vasculopathy (CAV) of the coronary vasculature is a major cause of death in cardiac transplant patients. In murine heart transplantation, both T-cells and NK cells are involved in the pathogenesis of cardiac graft vaculopathy. We have demonstrated that Lymphocytic Choriomeningitis Virus (LCMV) induces CAV in T-cell deficient mice. We have isolated NK cell activity using RAG1-/- mice, which are deficient in T and B cells, but have an intact NK cell population. LCMV induced CAV in parental to F1 cardiac transplants in RAG1-/-mice.

Clinical Investigation: An active program in clinical investigation is in collaboration with the Transplantation and the Hematopoietic and Stem Cell Transplant Units. Studies of the pathogenesis of viral infections, the role of cytomegalovirus, novel viral vaccines, and of prophylaxis for bacterial, viral, and fungal infections in the immunocompromised host are ongoing.


View my most recent publications at PubMed

Martin SI, Wilkinson RA, Fishman JA. Genomic presence of recombinant porcine endogenous retrovirus in transmitting miniature swine. Virology J., Virology Journal 2006, 3:1743-42

Kawai T, Cosimi AB, Spitzer TR, Tolkoff-Rubin N, Suthanthiran M, Saidman SL, Shaffer J, Preffer FI, Ding R, Sharma V, Fishman JA, Dey BR, Ko DSC, Hertl M, Goes NB Wong W, Williams WW, Colvin RB, Sykes M, Sachs DH.HLA-Mismatched Renal Transplantation without Maintenance Immunosupression, New Eng J Medicine, 2008, 358:353-361.

Yang L, G?ell M, Niu D, George H, Lesha E, Grishin D, Aach J, Shrock E, Xu W, Poci J, Cortazio R, Wilkinson RA, Fishman JA, Church G. Genome-wide inactivation of porcine endogenous retroviruses (PERVs). Science. 2015 Nov 27;350(6264):1101-4.

Rychert J, Danziger-Isakov L, Yen-Lieberman B, Storch G, Buller R, Sweet SC, Mehta AK, Cheeseman JA, Heeger P, Rosenberg ES, Fishman JA Multicenter comparison of laboratory performance in cytomegalovirus and Epstein-Barr virus viral load testing using international standards. .Clin Transplant. 2014 Dec;28(12):1416-23.

News & Events

  • MGH hosts pioneer in HIV-positive organ transplant

    In many countries, including the United States, it is illegal to procure an organ for transplant from an HIV-infected person. But these laws may soon be reevaluated since it is now possible to better manage HIV and because the demand for organs far exceeds supply.

  • Transplant Center unfolds strategic vision and plan

    MGH Hotline 12.3.10 Members of the MGH Transplant Center gathered in the Bigelow Amphitheater Nov. 17 to hear Joren Madsen, MD, DPhil, director of the MGH Transplant Center; Jay A. Fishman, MD, associate director of the center; and Debra J. Doroni, MBA, executive director of the center and the Department of Surgery, unveil the Transplant Center's new strategic plan.

  • Transplant Center recognized as a leader in patient education

    Clinicians at the Transplant Center received a National Health Information Award for developing an outstanding patient education book and streamlining the patient evaluation process.

  • Celebrating the gift of life

    MGH Hotline 5.08.09 Members of the MGH Transplant Center and the New England Organ Bank (NEOB) gathered in the Bulfinch Tents April 28 to celebrate National Donate Life Month, established to recognize the generosity of those who have saved lives through the donation of an organ, tissue, marrow or blood.


Infectious Disease Associates
55 Fruit Street
Boston, MA 02114-2696
Phone 1: 617-726-3812
Phone 2: 617-643-4809

Back to Top