Zhaohai Yang, MD, PhD

Professor of Clinical Pathology and Laboratory Medicine
Perelman School of Medicine at the University of Pennsylvania

Director, GI/Hepatic Pathology Fellowship Program
Director, GI Pathology Service
Hospital of the University of Pennsylvania

Contact Information3400 Spruce Street,
HUP 6 Founders
Philadelphia, PA, 19104
Office: 2156151638
Fax: 2153495910


Specialty Division

Anatomic Pathology

Research Expertise

My research centers on neoplastic diseases of the luminal gastrointestinal tract, liver, biliary tract, and pancreas, with a particular interest in neuroendocrine tumors of the digestive system.

Clinical Expertise

I am a surgical pathologist who specializes in gastrointestinal, pancreas, and liver pathology.


MD (Medical Doctor), Beijing Medical University (Peking University), 1993
M.Med (Pathology), Beijing Medical University (Peking University), 1996
PhD (Cell & Molecular Biology), University of Pennsylvania, 2001

Specialty Certification

American Board of Pathology (Anatomic and Clinical Pathology), 2009

Postgraduate Training

Postdoctoral Researcher, Department of Neuroscience , University of Pennsylvania, Philadelphia, Pennsylvania, 2001-2004
Postdoctoral Researcher, Department of Pathology & Lab Med, University of Pennsylvania, Philadelphia, Pennsylvania, 2004-2005
Pathology Resident (AP/CP), University of Alabama Medical Center, Birmingham, Alabama, 2005-2009
Gastrointestinal Pathology Fellow, University of Alabama Medical Center, Birmingham, Alabama, 2008-2009
Oncologic Pathology Fellow, Memorial Sloan-Kettering Cancer Center, New York, New York, 2009-2010

Awards and Honors

Prize for Excellent Academic Performance, Beijing Medical University, 1992
Guanghua Prize for Postgraduate, Beijing Medical University, 1995
Louis B. Flexner Student Prize for Outstanding Dissertation Research,
University of Pennsylvania, 2001
Nephrology Best Abstract Award, American Society for Apheresis 27th Meeting, 2006
Roger D. Baker Prize in Anatomical Pathology, Univ. of Alabama at Birmingham, 2009
Top Five Most Highly Cited Review Paper, Seminars in Diagnostic Pathology, 2016
Travel Award to attend Big Data workshop, Georgetown University, 2017
Chairman’s award for distinguished service, Department of Pathology and Laboratory Medicine, University of Pennsylvania, 2022
Teaching Excellence Award, Chinese American Pathologists Association, 2023

Memberships and Professional Organizations

United States and Canadian Academy of Pathology, 2006 - Present
American Society for Clinical Pathology, 2006 - Present
College of American Pathologists, 2006 - Present
Rodger C. Haggitt Gastrointestinal Pathology Society, 2011 - Present
Chinese American Pathologists Association, 2014 - Present
Pancreatobiliary Pathology Society, 2016 - Present
Vertex Pharmaceuticals, 2022 - Present
Flagship Biosciences, Inc, 2023 - Present
Hans Popper Hepatopathology Society, 2023 - Present

Web Links

Selected Publications