School of Medicine


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  • William Shomali

    William Shomali

    Clinical Assistant Professor, Medicine - Hematology

    BioDr. Shomali is a clinical assistant professor of Hematology at Stanford University School of Medicine. He is board certified in hematology & medical oncology.

    Dr. Shomali specializes in the treatment of blood cancers such as myeloproliferative neoplasms and myelodysplastic syndromes. He aims to provide compassionate, personalized, and evidence-based care to each patient.

    Dr. Shomali received his medical degree from the University of Jordan, followed by a postdoctoral fellowship at MD Anderson Cancer Center where he studied infections in cancer patients and the role of biomarkers in defining tumor fever. He completed his residency training in Internal Medicine at the Cleveland Clinic Foundation where he served as a Chief Medical Resident. He then joined Stanford University for his combined Hematology & Oncology fellowship training.

    Dr. Shomali’s research interests include the study of novel agents in myeloproliferative neoplasms and myelodysplastic syndromes. He developed investigator-initiated clinical trials for patients with eosinophilic neoplasms and advanced myelofibrosis. In addition, he co-authored several papers and book chapters discussing the care of patients with cancer. His work has been presented in national meetings and published in peer reviewed journals including Blood, American Journal of Hematology, British Journal of Hematology, Leukemia & Lymphoma, and Cancer.

    Among his honors, Dr. Shomali received the Cleveland Clinic Excellence in Teaching Award and was named to the Alpha Omega Alpha Medical Honor Society. He has received a Young Investigator Award from the Conquer Cancer Foundation, an NIH Institutional National Research Service Award, and a Stanford Cancer Institute Fellowship Award.

    Dr. Shomali is a member of the American Society of Hematology and the American Society of Clinical Oncology.

  • James L. Zehnder, M.D.

    James L. Zehnder, M.D.

    Professor of Pathology (Research) and of Medicine (Hematology)

    Current Research and Scholarly InterestsOur laboratory focuses on translational research in 2 main areas - genomic approaches to diagnosis and minimal residual disease testing for patients with cancer, and molecular basis of disorders of thrombosis and hemostasis. My clinical focus is in molecular pathology, diagnosis and treatment of disorders of hemostasis and thrombosis and general hematology.

  • Tian Yi Zhang, MD, PhD

    Tian Yi Zhang, MD, PhD

    Assistant Professor of Medicine (Hematology)

    BioDr. Zhang is a board-certified hematologist. She is also an assistant professor of hematology at Stanford University School of Medicine. In addition to her medical degree, she holds a PhD in cellular and molecular immunology.

    In her clinical practice, she treats patients with all forms of hematological malignancies, offering specialized expertise in acute myeloid leukemia, including therapy-resistant cases. For each patient, she develops a personalized care plan encompassing novel treatment options.

    Her research activities include conducting early phase clinical trials, investigator initiated clinical trials (IITs), studying the immune repertoire in patients with myeloid malignancies, and exploring cholesterol metabolic dependencies of acute myeloid leukemia (AML).

    She was the recipient of an A.P. Giannini Foundation fellowship award, which supports innovative research. The award helped fund Dr. Zhang’s study of how AML cells interact with other cells in bone marrow. A significant finding confirmed that AML cells secrete a protein that suppresses the production of red blood cells, the same protein that causes inflammation in disorders such as rheumatoid arthritis and Crohn’s disease.

    Her many other honors include the National Cancer Institute Career Development (K08) Award, the American Society of Hematology (ASH) Research Training Award for Fellows, Stanford Cancer Institute - American Cancer Society (SCI-ACS) Pilot Grant and Best ASH Abstract Award two years in a row. She also has earned recognition from the National Institutes of Health and American College of Physicians.

    She has published her research findings on topics such as advanced therapy for high-risk myelodysplastic syndromes and reversal of bone marrow failure induced by AML. Her work has appeared in Leukemia & Lymphoma, Science Translational Medicine, Cancer Research, the Journal of Clinical Investigation, Journal of Immunology, and elsewhere.

    Dr. Zhang is a member of the American Association of Cancer Research and American Society of Hematology. She advises and mentors Stanford medical students, residents and fellows. She delivers invited lectures to faculty and fellows. In addition, she has been an invited speaker on the topic of acute myeloid leukemia at the Association of Northern California Oncologists Update on Hematological Malignancies.