Stephen M. Hewitt

Stephen M. Hewitt, M.D., Ph.D., is a Captain in the US Public Health Service, and serves as a Medical Officer within the Laboratory of Pathology, Center for Cancer Research, National Cancer Institute at the National Institutes of Health, in Bethesda Maryland. He has serves as head of the Experimental Pathology Laboratory, since its inception in 2014, having previously lead the Tissue Array Research Program from 2000 to 2014, and the Applied Molecular Pathology Laboratory from 2008 till 2014.

Dr. Hewitt’s research interests are in the development of tissue-based biomarkers for cancer diagnosis, prognosis and prediction of response to therapy.  Specific areas of concentration include tissue microarrays, biobanking of  pathology specimens, whole slide imaging /image analysis. Since the April 2020. Dr. Hewitt has participated in the NIH’s response to the SARS-CoV-2 pandemic with the development of digital pathology resources related to COVID-19 pathology as well as co-lead of the NIH Autopsy Consortium.

Stephen received his bachelor’s degree in philosophy from the Johns Hopkins University in 1988, and his Ph.D. in genetics from the University of Texas, Graduate School of Biomedical Sciences in 1995, having completed his thesis in the laboratory of Grady Saunders at the University of Texas M.D. Anderson Cancer Center. He completed his M.D. in 1996 at the University of Texas Medical School at Houston, and his residency in Anatomic Pathology within the Laboratory of Pathology at the National Cancer Institute. He is a board-certified Anatomic Pathologist and Fellow of the College of American Pathologist.  Dr. Hewitt is chair of the Subcommittee on Immunohistochemical Assays  for the Clinical Laboratory Standards Institute. He is Editor-in-Chief of Journal of Histochemistry and Cytochemistry and Associate Editor of the FASEB Journal. Dr Hewitt servers on the council of the Association for Pathology Informatics and a consultant to the Hematology and Pathology Devices Panel, Center for Devices and Radiological Health, Food and Drug Administration. Dr Hewitt has co-authored more than 400 articles and servers on the editorial board of four peer-reviewed journals.