About Rex Smith, MD, PhD

Dr. Smith’s is an Associate Pathologist at Massachusetts General Hospital and a Associate Professor of Pathology at Harvard Medical School  Dr Smith’s expertise is in renal, cardiac, and autopsy pathology and has a special interest in transplant pathology and ANCA disease. His research works includes animal, primate, and human models of kidney and heart allograft rejection.

Departments, Centers, & Programs:

Clinical Interests:



Pathology Associates
55 Fruit Street
Boston, MA 02114-2696
Phone: 617-726-1835
Fax: 617-726-2365

Medical Education

  • MD, Case Western Reserve University School of Medicine
  • PhD, Case Western Reserve University School of Medicine
  • Residency, Massachusetts General Hospital

American Board Certifications

  • Immunopathology, American Board of Pathology
  • Anatomic Pathology & Clinical Pathology, American Board of Pathology

Accepted Insurance Plans

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


Dr. Smith's research focuses primarily on immunology and transplantation, with emphasis on the transplantation pathology of the heart, kidney, and pancreatic islets.

See details at the Smith Lab.