Joseph Geradts

Joseph Geradts, M.D.

  • Clinical Professor, Department of Population Sciences

Joseph Geradts, M.D.

Joseph Geradts, M.D., has joined City of Hope as clinical professor in the Department of Population Sciences. He serves as founding director of the new Multi-Scale Translational Research Core Laboratory. He comes to City of Hope from Boston, where he was senior pathologist at Brigham and Women’s Hospital and Dana-Farber Cancer Institute, with a joint appointment at Harvard Medical School.
Geradts holds an master's degree in endocrinology from the University of California Berkeley and an M.D. degree from the University of Chicago Pritzker School of Medicine. He completed a residency in anatomic pathology at the University of California San Francisco, a fellowship in surgical pathology at Stanford University Medical Center and a postdoctoral research fellowship at the National Cancer Institute in Bethesda, Maryland. He is board-certified in anatomic pathology.
Previously, Geradts held combined clinical, research and teaching appointments at the University of North Carolina at Chapel Hill, Oxford University, Roswell Park Cancer Institute and Duke University. He also worked in Cambridge, England, as head of molecular pathology in oncology at AstraZeneca Pharmaceuticals, where he directed the development and performance of tissue-based biomarker assays to assess the utility and efficacy of novel targeted cancer therapies.
Geradts’ research interests include intratumoral heterogeneity, the molecular pathogenesis of breast cancer and biomarkers of breast cancer progression. He has collaborated on numerous cancer research projects with investigators from a wide range of disciplines, in addition to conducting his own extramurally funded breast cancer research program, resulting in about 140 peer reviewed scientific publications. He also served as reference pathologist and core director of the UNC and Duke Breast Cancer SPOREs.  

Geradts’ diagnostic focus is in surgical pathology, oncologic pathology and particularly diseases of the breast. He also has expertise in digital image analysis and automated quantitation of cancer biomarkers.
  • 2017-present, Clinical Professor, Department of Population Sciences, City of Hope, Duarte, CA
  • 2016-2017, Senior Pathologist, Brigham and Women’s Hospital and Dana Farber Cancer Institute, Boston, Massachusetts
  • 2005-2014, Attending Surgical Pathologist, Duke University Medical Center, Durham, North Carolina
  • 2001-2005, Attending Pathologist, Roswell Park Cancer Center Institute, Buffalo, New York


City of Hope Comprehensive Cancer Center, 1500 East Duarte Road, Duarte, CA, 91010

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  • 1987, M.D., University of Chicago Pritzker School of Medicine
  • 1984, M.A. (Endocrinology), University of California at Berkeley
  • 1981, Preclinical medicine, University of Regensburg, Germany


  • 1989-1990, Surgical Pathology, Stanford University Medical Center , Stanford, CA
  • 1990-1991, Molecular Oncology Research, National Cancer Institute – Navy Medical Oncology Branch , Bethesda, MD


  • 1987-1989, Anatomic Pathology, University of California at San Francisco, San Francisco, CA
  • 2001-2005, Certificate of Qualification in Histopathology, State of New York
  • 1998, Specialist Registration in Histopathology (U.K.)
  • 1991, Diplomate, American Board of Pathology (Anatomic Pathology), Voluntary Recertification 2014
  • 1988, Diplomate, National Board of Medical Examiners
  • 1984, German Academic Exchange Service (DAAD) Scholarship, Cambridge University, England
  • 1982, Fulbright Travel Fellowship, University of California Berkeley
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