Executive Committee

Review the current ASH Executive Committee roster and learn more about the Society.

Officers

  • Robert Negrin, MD

    Robert Negrin, MD

    ASH President ('26)

    Robert Negrin, MD is a Professor of Medicine at Stanford University. As a renowned physician-scientist, Dr. Negrin has made significant research contributions in the areas of hematopoietic cell transplantation, cellular immunology, and immune system regulation. He is also deeply committed to training the next generation of physicians and scientists.

    Under his leadership, ASH will continue to champion advocacy efforts around the Fight4Hematology, which aims to protect hematology research and advances in patient care in the face of federal actions that threaten federal research funding and access to care.

    Dr. Negrin is passionate about supporting the careers of young hematologists and is a vocal champion of programs like ASH’s Hematology Inclusion Pathway (HIP), a comprehensive 13-year longitudinal career pathway of awards that strives to ensure hematology reflects and serves the world we live in, and ASH’s Scholar Award, which supports the careers of hematologists between training and independent investigative work.

    Dr. Negrin has been a member of ASH for 33 years and has served in various leadership roles. He was the inaugural editor-in-chief of Blood Advances and an associate editor of Blood. He has served as an ad hoc member of the Executive Committee and as chair of the Scientific Committee on Transplant Biology and Cellular Therapies.

    Read the columns of past and present ASH Presidents in The Hematologist

  • Cindy E. Dunbar, MD

    Cindy E. Dunbar, MD

    ASH President-Elect ('26)

    Cynthia E. Dunbar, MD, is NIH Distinguished Investigator Emeritus with the Intramural Research Program of the National Heart, Lung, and Blood Institute at the National Institutes of Health in Bethesda, MD. She retired in 2026 as Chief of the Institute’s Translational Stem Cell Biology Branch after almost four decades with NIH. Dr. Dunbar is a member of the National Academy of Medicine, a Fellow of the American Association for the Advancement of Science, and an alumnus of the Executive Leadership in Academic Medicine program.

    Dr. Dunbar has previously served as editor-in-chief of the ASH flagship journal Blood from 2008-2013 after serving as associate editor from 1998-2007. She also served as a faculty member for the ASH-European Hematology Association Translational Research Training in Hematology Program from 2011–2016 and was co-director in 2016. She has served on the ASH Nominating Committee, the Program Committee, and completed a term as an ASH Councillor before becoming Secretary in 2021. Together with several other ASH leaders, Dr. Dunbar mobilized in response to the COVID-19 pandemic to develop a series of clinical FAQs to address the impact of COVID-19 on patients with blood diseases and assist hematologists in navigating the public health crisis. She received the ASH Public Service Award in 2022 in recognition of these efforts.

    Dr. Dunbar’s research spans from basic laboratory studies through clinical trials focused on hematopoiesis, natural killer cell biology, hematopoietic stem cell and CAR-T cell gene therapies, and the pathophysiology and treatment of congenital and acquired bone marrow failure syndromes. As a prior hematology fellowship program director, and a founding member of the NIH Equity Committee, Dr. Dunbar is committed to developing and supporting a diverse hematology workforce.

  • Alison Loren, MD, MSCE

    Alison Loren, MD, MSCE

    ASH Vice President ('26)

    Dr. Loren is chief of the division of hematology/oncology at the Perelman School of Medicine and director of Blood and Marrow Transplantation at the Abramson Cancer Center at the University of Pennsylvania. As a clinician, she is deeply committed to improving access to and outcomes of allogeneic hematopoietic cell transplantation and long-term survivorship, including fertility preservation and reproductive health in cancer survivors.

    Dr. Loren has been a devoted member of ASH, as demonstrated by her nearly 20 years of service to the Society on a range of committees, with particular emphasis on the education and training of hematologists. Dr. Loren has most recently served as a councillor on ASH’s Executive Committee (2020-2023), co-chair of the ASH Annual Meeting Education Program (2021), and as an appointed member of the Hematology-Focused Fellowship Steering Committee (2020). She also served on the Committee on Training (2009-2018), Training Awards Subcommittee (2013-2015), and various award study sections.

  • Jennifer R. Brown, MD, PhD

    Jennifer R. Brown, MD, PhD

    ASH Secretary ('29)

    Jennifer R. Brown, MD, PhD, is director of the Chronic Lymphocytic Leukemia (CLL) Center of the Division of Hematologic Malignancies at Dana-Farber Cancer Institute and the Worthington and Margaret Collette Professor of Medicine in the field of Hematologic Oncology at Harvard Medical School. Her research interests include the development of novel targeted therapies for CLL and CLL genomics.

    Dr. Brown has been an ASH member since 2003 and previously served as chair of the Committee on Educational Affairs, liaison to the Publications Committee, and joint Program Committees. Her service as chair was preceded in other roles, including Education Program Advisory Panel member, abstract reviewer, Clinical Research Training Institute faculty, and study section reviewer.

  • Joseph R. Mikhael, MD, MEd

    Joseph R. Mikhael, MD, MEd

    ASH Treasurer ('26)

    Joseph Mikhael, MD, MEd, is a Professor in the Applied Cancer Research and Drug Discovery Division at the Translational Genomics Research Institute, an affiliate of City of Hope Cancer Center. Dr. Mikhael is also the chair of the Diversity, Equity, and Inclusion Council at TGen, and Chief Medical Officer of the International Myeloma Foundation. Additionally, he serves as a consultant hematologist and director of myeloma research at the HonorHealth Research Institute. Dr. Mikhael earned his medical degree and completed his residency at the University of Ottawa.

    A member of ASH for more than 20 years, Dr. Mikhael has served ASH on numerous committee and editorial boards, currently serving on the Executive Committee as Treasurer. He previously served as chair of the Communications Committee, annual meeting education program co-chair, ASH councillor, director of the Clinical Research Training Institute, and as an associate editor of ASH Clinical News.

    Dr. Mikhael’s research focuses include multiple myeloma, health disparities, education, and health communications.

Councillors

  • Adam Cuker, MD, MS

    Adam Cuker, MD, MS

    ('29)

  • Chancellor E. Donald, MD

    Chancellor E. Donald, MD

    ('28)

  • Christopher R. Flowers, MD

    Christopher R. Flowers, MD

    ('26)

  • H. Leighton Grimes, PhD

    H. Leighton Grimes, PhD

    ('27)

  • Jennifer Holter Chakrabarty, MD

    Jennifer Holter Chakrabarty, MD

    ('28)

  • Mary M. Horowitz, MD

    Mary M. Horowitz, MD

    ('27)

  • Charlotte Marie Niemeyer, MD

    Charlotte Marie Niemeyer, MD

    ('26)

  • Mikkael A Sekeres, MD, MS

    Mikkael A Sekeres, MD, MS

    ('29)

Ad Hoc, Non-Voting Members

Georg Aue , MD, PhD, MBA ('27)
Chair, Committee on Investment & Audit

Hetty Eileen Carraway , MD, MBA ('26)
Chair, Committee on Training

Amy E. DeZern , MD ('26)
Chair, Committee on Educational Affairs

Phoebe Joy Ho , MBBS, DPhil ('27)
Chair, International Members Committee

James LaBelle , MD, PhD ('27)
Chair, ASH Foundation Committee

Michael L. Linenberger , MD ('26)
Chair, Nominating Committee

Ivan Maillard , MD, PhD ('27)
Chair, Awards Committee

Menaka Pai , MD, BSc, FRCPC, MSc ('27)
Chair, Committee on Quality

Mary-Elizabeth M. Percival , MD ('27)
Chair, Committee on Practice

Andrew W. Roberts , MBBS, PhD ('29)
Blood, Editor-in-Chief

Bart Scott , MD ('26)
Chair, Committee on Government Affairs

Shalini Shenoy , MD ('26)
Chair, Publications Committee

Surbhi Sidana , MD ('26)
Chair, Committee on Communications

Alison R. Walker , MD, MBA, MPH ('26)
Chair, Committee on Advancing Excellence and Population Health

Alisa S. Wolberg , PhD ('26)
Chair, Committee on Scientific Affairs

Committee Mandate

Function

The Executive Committee is the governing body of ASH.

Meetings

While the ASH Bylaws require the voting members of the Executive Committee to hold at least two regular meetings a year, the Executive Committee usually meets four times a year; this includes (1) a one-day, in-person meeting in February following the joint Program Committee meeting, (2) an in-person, multi-day retreat in May, (3) an in-person meeting in September following the second meeting of the joint Program Committee, and (4) a virtual meeting in November. The Executive Committee may convene at other times and the President, in coordination with the Executive Office staff, determines when these meetings are necessary.

Membership

The Executive Committee consists of the President (who serves as its chair), the President-Elect, the Vice President, the Secretary, the Treasurer, and the eight Councillors. The Editor-in-Chief of Blood with the standing committee chairs serve as ad hoc, non-voting members of the Executive Committee and attend the in-person Executive Committee Spring Retreat in May as well as the virtual Executive Committee meeting in November. The editor-in-chief and standing committee chairs participate in open discussions but are excluded from Executive Sessions held during both meetings. Councillors can serve simultaneously as associate editors for any of the Blood journals but must recuse themselves from Executive Committee votes on issues related to the Blood journals.

The Executive Committee may determine by a majority vote that an interim vacancy has occurred when a member of the Executive Committee fails to attend three consecutive meetings.

Terms of Office

The President, President-Elect, and Vice President serve a one-year term in each office unless there is an unexpired term of the President. Succession of the Vice President to President-Elect, and in turn to President, is automatic. The Secretary and Treasurer each serve one four-year term; the terms of the Secretary and Treasurer are arranged so that they will not expire in the same year. The Councillors serve four-year terms, arranged so that two will expire each year.

Responsibilities

Each Executive Committee member should expect to be assigned responsibility for some aspect of ASH business; it might involve serving on a special committee or a subcommittee of the Executive Committee, such as the Compensation Subcommittee or Finance Subcommittee. In the final year of their terms, the two most senior Councillors serve as members of the Finance Subcommittee.

OFFICERS

The President, President-Elect, Vice President, Treasurer, and Secretary are the ASH Officers.

President

The President is chair of the Executive Committee and performs all duties typical of the office.

President-Elect

The President-Elect serves as a member of the Finance Subcommittee. The President-Elect recommends chairs and members of committees for the coming term year with the advice of the Nominating Committee and the approval of the Executive Committee. The President-Elect selects the Presidential Symposium and Ham-Wasserman Lecture speakers for the ASH annual meeting to occur during their presidential year.

Vice President

The Vice President serves as a member of the Finance Subcommittee and selects the Education and Scientific Program Co-Chairs for the ASH annual meeting to occur during their presidential year.

Secretary

The Secretary prepares minutes of any Executive Sessions of the Executive Committee when the staff board liaison is not present. The Secretary serves as a liaison member of the Program Committee and is responsible for oversight of the annual abstract process; this involves organizing reviewers and coordinating reviewers and interacting with staff and the abstract management vendor to ensure review of numerous abstracts. During the September joint Program Committee meeting, the Secretary leads the discussion concerning final assignment of oral and plenary presentations at the ASH annual meeting.

Treasurer

The Treasurer oversees all financial concerns of ASH as well as the development and presentation of the budgets of the Society. The Treasurer submits an annual report of the monies received and expended and prepares a detailed statement of the financial condition of ASH, which is made available to all members. The Treasurer monitors reports prepared by the Finance department staff throughout the year and chairs the Finance Subcommittee.