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.


Fellowship positions for 2021-2022 and 2022-2023 have been filled.

Deadline for submitting 2023-2024 applications is December 1, 2021. Applications will be reviewed on a rolling basis starting June 1, 2021.


Applications should be sent to:

Jean Oak, MD, PhD
Tel: (650) 497-4063
Email: jeanoak@stanford.edu


Krista Tanquary, Administrative Assistant
Email: tanquary@stanford.edu


Fellowship Program Coordinator

Rachael Buenafe-Jacinto
Email: rjacinto@stanford.edu

Fellowship Program Director

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

Current Fellows

Eric Gars, MD
Medical School: University of Florida College of Medicine
Residency: Stanford University School of Medicine

Fei Fei, MD
Medical School: Southeast University, Nanjing
Residency: University of Alabama at Birmingham

Nathan Paulson, MD
Medical School: Sidney Kimmel Medical College at Thomas Jefferson University
Residency: Yale School of Medicine

Guangwu Xu, MD
Medical School: Wannan Medical College
Residency: University of Massachusetts Medical School

Incoming Fellows

Erik Ames, MD, PhD (2022-2023)

Timothy Miller, MD (2022-2023)

Rebecca Rojansky, MD, PhD (2022-2023)

Jing Zhang, MD (2022-2023)

Hematopathology Faculty

Sebastian Fernandez-Pol, MD, Phd

Clinical Assistant Professor of Pathology (Hematopathology)

Dr. Sebastian Fernandez-Pol is an academic hematopathologist with fellowship training in hematopathology and dermatopathology. He has a particular interest in improving diagnostic accuracy for cutaneous lymphoproliferative disorders. Dr. Fernandez-Pol received his B.A. in chemistry with a concentration in biochemistry from the Washington University in St. Louis in 2003, his MD and PhD from Northwestern University in 2013, and completed his anatomic pathology and clinical pathology residency, hematopathology fellowship, and dermatopathology fellowship at Stanford University in 2019.

More information about Dr. Fernandez-Pol >>

Jean Oak, MD, PhD

Clinical Assistant Professor of Pathology, Hematopathology
Director, Hematopathology Fellowship Program

Graduated Fellows