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John D Groarke, MD, MPH


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  • Instructor in Medicine, Harvard Medical School


Contact Information

  • Office Phone Number617-632-6547


Having graduated with honors and academic awards from medical school at Trinity College Dublin, Ireland, Dr. Groarke completed internal medicine residency and general cardiology fellowship, receiving a Certificate of Completion of Specialist Training from the Royal College of Physicians of Ireland. He then completed clinical fellowships in advanced cardiovascular imaging, cardio-oncology, and advanced heart failure/mechanical circulatory support/heart transplantation at Brigham & Women’s Hospital, Boston between 2011 and 2015. In July 2015, he was appointed as an associate physician with the Division of Cardiovascular Medicine, BWH and Cardio-Oncology Program at Dana Farber Cancer Institute, and as an Instructor of Medicine at Harvard Medical School. In this role, he offers subspecialty expertise in advanced heart failure, mechanical circulatory support, heart transplantation, cardio-oncology, and cardiopulmonary exercise testing.

He complemented this extensive clinical training by fostering a commitment to clinical research and has over 30 peer-reviewed publications to date, with multiple book chapters and other works in progress. To improve the quality of his clinical research endeavors, he has completed a Masters in Science through Trinity College Dublin, and a Masters in Public Health through Harvard School of Public Health, each on a part-time basis while undertaking clinical fellowships. He represents Harvard University on a national expert clinical research committee called the Heart Failure Apprentice Network (HFAN) – a clinical research initiative funded by the National Heart Lung and Blood Institute (NHLBI).

Cardio-oncology is a dynamic and evolving cardiology subspecialty committed to improving the cardiovascular wellbeing of the growing population of cancer survivors. However, the field lacks the adequate evidence base needed to inform practice guidelines. As a new subspecialty, there is a significant need for meaningful clinical research. Dr. Groarke is committed to investigating optimal strategies for cost-efficient and timely detection of cardiotoxicities related to cancer treatments; this research focus utilizes his clinical training in cardio-oncology, cardiac imaging and heart failure. He has secured institutional and industry funding to develop cardio-oncology clinical research across BWH and DFCI.

Given his extensive clinical training, research interests, and academic background, he offers specialist clinical care to advanced heart disease and cardio-oncology patients, and meaningful contributions to cardio-oncology clinical research literature. He also maintains a commitment to education of medical students, house-staff, and peers alike.

Board Certification:

  • Cardiovascular Computed Tomography, 2012
  • Nuclear Cardiology, 2013


  • Clinical Fellow, Advanced Cardiovascular Imaging, Brigham and Women's Hospital Harvard Medical School
  • Clinical Fellow, Advanced Heart Disease, Brigham and Women's Hospital Harvard Medical School
  • Clinical Fellow, Cardiology, Royal College of Physicians of Ireland


  • Royal College of Physicians of Ireland

Medical School:

  • University of Dublin, Trinity College Dublin


Brigham and Women's Hospital
75 Francis Street
Boston, MA 02215
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