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300 Pasteur DrPalo Alto, CA 94305
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Summary
- James Zehnder, MD, is a highly experienced healthcare professional based in Stanford, CA, specializing in Pathology, with subspecialties in Hematopathology, Molecular Genetics, Anatomic Pathology, and Clinical Pathology. His education includes Fellowships in Hematology and Medical Oncology, and a Residency in Internal Medicine through Stanford Health Care-Sponsored Stanford University, with his medical degree from Tufts University School of Medicine. Dr. Zehnder is a Professor of Pathology and Medicine (Hematology) at the Stanford University School of Medicine. His areas of expertise include coagulation and platelet disorders, myeloproliferative disorders, hemophilia, and molecular pathology. He has numerous publications in well-known journals and participates in clinical trials focusing on hematologic disorders. He has been recognized with the CMS Meaningful Use Stage 1 Certification from EpicCare Ambulatory EMR, Epic Systems Corporation in 2011 and 2013.
Education & Training
Stanford Health Care-Sponsored Stanford UniversityFellowship, Medical Oncology, 1991 - 1993- Stanford Health Care-Sponsored Stanford UniversityFellowship, Hematology, 1988 - 1991
- Stanford Health Care-Sponsored Stanford UniversityResidency, Internal Medicine, 1984 - 1988
Tufts University School of MedicineClass of 1984
Certifications & Licensure
CA State Medical License 1985 - 2027
American Board of Internal Medicine Internal Medicine- American Board of Internal Medicine Hematology
Awards, Honors, & Recognition
- CMS Meaningful Use Stage 1 Certification EpicCare Ambulatory - Core EMR, Epic Systems Corporation, 2012, 2014-2016
- CMS Meaningful Use Stage 2 Certification EpicCare Ambulatory 2014 Certified EHR Suite, Epic Systems Corporation, 2012, 2014-2016
- CMS Meaningful Use Stage 1 Certification EpicCare Ambulatory EMR, Epic Systems Corporation, 2011, 2013
Clinical Trials
Publications & Presentations
PubMed
- Assessing the Clinical Performance of a Presymptomatic Acute Graft-Versus-Host Disease Biomarker Test in Hematopoietic Stem Cell Transplant Recipients.Lin Wang, Rafael C Pulgrossi, Jaclyn Anderson, Ariadna Garcia, Everett H Meyer
The Journal of Applied Laboratory Medicine. 2026-03-05 - Implementation of a fully automated ADAMTS13 activity assay utilizing fluorescence resonance energy transfer with a practical approach to address high background fluor...Jing Jin, Lu M Yang, Derick Okwan, James L Zehnder
American Journal of Clinical Pathology. 2025-10-04 - 1 citationsDiscordant High Activated Partial Thromboplastin Time Relative to Anti-Xa Values in Hospitalized Patients is an Independent Risk Factor for Increased 30-day Mortality.Jing Jin, Santosh Gummidipundi, Joe Hsu, Husham Sharifi, Derek Boothroyd
Seminars in Thrombosis and Hemostasis. 2025-09-01
Abstracts/Posters
- Increased Mortality and Bleeding in a Large Cohort of Patients on Heparin Anticoagulation Therapy with Discordant Anti-Factor Xa Activity and Activated Partial Thrombo...James Zehnder, 61st Annual American Society of Hematology Meeting, Orlando, FL, 12/9/2019
Other
- Cytogenetic and molecular genetic diagnostic toolsZehnder JL, Cherry AM, Schrijver I
http://www.uptodate.com/contents/cytogenetic-and-molecular-genetic-diagnostic-tools
UpToDate, Wolters Kluwer Health - 2012-11-02 - Bone marrow aspiration and biopsy: Indications and techniqueZehnder JL
http://www.uptodate.com/contents/bone-marrow-aspiration-and-biopsy-indications-and-technique
UpToDate, Wolters Kluwer Health - 2013-04-10 - Clinical use of coagulation testsZehnder JL
http://www.uptodate.com/contents/clinical-use-of-coagulation-tests
UpToDate, Wolters Kluwer Health - 2012-12-31
Press Mentions
Some Bay Area Hospitals Return COVID Tests Results Within an Hour. Here's Why It's Not More CommonSeptember 11th, 2021- What Are at-Home COVID Tests?August 16th, 2021
- Stanford Experts Encourage Continued Vaccination After Johnson & Johnson Pause LiftedApril 26th, 2021
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