Hematopathology Fellowship


The Stanford Hematopathology Fellowship includes broad experience in neoplastic and non-neoplastic hematopathology diagnosis, incorporation of state of the art ancillary studies for diagnosis, prognosis, and therapeutic targets, clinical collaboration with world leaders in hematology and oncology, and numerous opportunities for clinical and translational research. We serve a broad patient base at Stanford Health and Stanford Children’s Health, and also see cases submitted in consultation by pathologists and/or oncologists from many parts of the United States and abroad.

Fellows gain extensive experience in diagnosis of a variety of neoplastic and non-neoplastic lymph node and bone marrow conditions, including the integrated use of immunohistochemical, flow cytometry, cytogenetic and molecular ancillary studies. Fellows also gain experience in evaluation of both routine and rare coagulation and red cell disorders.

Fellow rotations include the hematopathology consultation service, the bone marrow and flow cytometry service, molecular pathology and cytogenetics, coagulation and red blood cell special studies, and elective time which may be devoted to additional clinical experience or to research.

The fellow educational experience includes one on one and small group signout experience, dedicated small group microscope sessions and fellow journal clubs, and didactic lecture series. Fellows will gain teaching experience in undergraduate and graduate medical education contexts. Fellows will have the opportunity to participate in tumor boards, to attend grand round lecture series and regional pathology society meetings, and to submit abstracts to a national pathology or hematology society conference.  

Stanford establishes PGY levels for new fellows based on the successful completion of all prerequisite training required for entry into your fellowship program. Stanford does not recognize additional training beyond the prerequisite training requirements when establishing the PGY level for entry into the program.

Foreign Students & Visa Sponsorship

Canadian Visa Requirements

Graduates of Canadian medical schools will be placed on ECFMG sponsored J-1 visas. They are not required to take the qualifying examinations such as FMGEMS, NBME, and USMLE in order to obtain their visas.

Note: At this time, the government of Canada is restricting approval of physicians wishing to obtain clinical training outside Canada. SHC is unable to obtain a J-1 visa without the consent of the Canadian government.

Non-Canadian Visa Requirements

All trainees in residency and clinical fellowship programs will be placed on ECFMG sponsored J-1 visas.

Stanford Hospital and Clinics (SHC) does not sponsor such trainees for the H-1B visa. ECFMG requires a valid ECFMG certificate obtained by successful completion of their qualifying examinations (VQE, FMGEMS, NBME, or USMLE) coupled with the appropriate English language examination to be eligible for a visa.

Allow 120 working days for ECFMG to process an initial visa.

For further information, please contact:
Educational Commission for Foreign Medical Graduates
3624 Market Street
Philadelphia, PA 19104-2685 
Tel: (215) 386-5900

California Medical License

California law states that all U.S. and Canadian graduates are required to obtain a California medical license before starting a fellowship at Stanford. 

If you have any questions please visit the Stanford Medicine Graduate Medical Education (GME) and/or the California Medical Board website for more information.



Fellowship positions for 2023-2024 and 2024-2025 have been filled. Applications for 2025-2026 will be reviewed on a rolling basis starting June 1, 2023.

Required Materials:    

  1. Completed Standardized Application for Pathology Fellowships form (CAP with supplemental available below) with your signature
  2. Updated Curriculum Vitae (CV)
  3. Cover letter and/or personal statement
  4. 3 letters of recommendation
  5. Photo

Please submit application and letters electronically (pdfs) to:

Jean Oak, MD, PhD
Clinical Assistant Professor of Pathology, Hematopathology
Director, Hematopathology Fellowship Program
Email: jeanoak@stanford.edu

and in the email please cc:

Krista Tanquary
Administrative Assistant
Email: tanquary@stanford.edu

Fellowship Program Director

Jean Oak, MD, PhD
Clinical Assistant Professor of Pathology, Hematopathology
Director, Hematopathology Fellowship
Email: jeanoak@stanford.edu 

Fellowship Program Coordinator

Rachael Buenafe-Jacinto
Email: rjacinto@stanford.edu

Current Fellows

Erik Ames, MD, PhD (2022-2023)
Medical School: University of California, Davis
Residency: Stanford University School of Medicine

Timothy Miller, MD (2022-2023)
Medical School: University of Colorado
Residency: University of Michigan

Rebecca Rojansky, MD, PhD (2022-2023)
Medical School: University of California, Los Angeles
Residency: Stanford University School of Medicine

Jing Zhang, MD, PhD (2022-2023)
Medical School: University of Colorado
|Residency: Stanford University School of Medicine

Incoming Fellows

Phillip Bulterys, MD, PhD (2023-2024)

Shanelle DeLancy, MD (2023-2024)

Lisa Friedman, MD (2023-2024)

Andrew Stone, MD, PhD (2023-2024)

Hematopathology Faculty

Jason Kurzer, MD, PhD

Clinical Assistant Professor (Hematopathology)
Director, Clinical Hematology Laboratory

Oscar Silva, MD, PhD

Clinical Assistant Professor of Pathology (Hematopathology)
Associate Program Director, Pathology Residency Training (AP)

Oscar is an academic hematopathologist who completed anatomic and clinical pathology residency and hematopathology fellowship at Stanford in 2020. Prior to Stanford, he received his MD and PhD from UCLA. His interests include immunology, the pathogenesis and diagnosis of lymphomas, and global health.