Harvard Medical School


Harvard Medical School
Professor and Chair of Neurology at Boston University School of Medicine

Dr. Greer’s research interests include predicting recovery from coma after cardiac arrest, brain death, and multiple stroke-related topics, including acute stroke treatment and stroke prevention. He is a leader in the Neurocritical Care Society, the Society of Critical Care Medicine, and the American Stroke Association. Additionally, he is a well-regarded and dedicated medical educator and clinician.

Dr. Greer received his BA in English Literature from Williams College, an MA in English Literature and MD from University of Florida, and an MA, privatim, from Yale. He completed an internship in internal medicine and a residency in neurology at Massachusetts General Hospital (MGH), followed by fellowship training in vascular neurology and neurocritical care, also at MGH. Previously, he was as Associate Professor of Neurology at Harvard Medical School and Associate Neuroscientist at MGH before joining the faculty at Yale.

Among his many honors and awards, Dr. Greer has been named one of the Best Doctors in America since 2007; he has received the Yale Neurology Residency Program’s Teacher of the Year Award, two Presidential Citations each from the Society of Critical Care Medicine and the Neurocritical Care Society, the Partners Neurology “Superman” Resident Teaching Award from the MGH Department of Neurology and the Stanley M. Wyman Teaching Award from the MGH Department of Medicine.

Dr. Greer is the editor-in-chief of both Neurocritical Care Live and Seminars in Neurology. He serves as a reviewer for several journals, including the New England Journal of Medicine, Annals of Internal Medicine, Brain, Neurology, and Stroke. He is a fellow of the Society of Critical Care Medicine, American Academy of Neurology, American Heart Association, American Neurological Association and Neurocritical Care Society. He has authored more than 150 peer-reviewed manuscripts, reviews, chapters, guidelines and books.

Other Positions

  • Chief, Neurology, Boston Medical Center
  • Professor, Neurology, Boston University School of Medicine


  • University of Florida College of Medicine, MD
  • University of Florida, MA
  • Williams College, BA


PUBLISHED ON 4/6/2019 Ormseth CH, Maciel CB, Zhou SE, Barden MM, Miyares LC, Beekman RB, Gilmore EJ, Greer DM. Differential outcomes following successful resuscitation in cardiac arrest due to drug overdose. Resuscitation. 2019 Apr 06; 139:9-16. PMID: 30965094.

READ AT: PubMed PUBLISHED ON 4/2/2019 Zhou SE, Maciel CB, Ormseth CH, Beekman R, Gilmore EJ, Greer DM. Distinct predictive values of current neuroprognostic guidelines in post-cardiac arrest patients. Resuscitation. 2019 Apr 02. PMID: 30951843.

READ AT: PubMed PUBLISHED ON 3/29/2019 Greer DM. Arash Salardini, MBBS, BSc. Semin Neurol. 2019 Apr; 39(2):149-150. PMID: 30925607.

READ AT: PubMed PUBLISHED ON 2/11/2019 Greer DM. Joshua N. Goldstein, MD, PhD, and Jeffrey M. Ellenbogen, MMSc, MD. Semin Neurol. 2019 02; 39(1):1-2. PMID: 30743286.

READ AT: PubMed PUBLISHED ON 1/2/2019 Russell JA, Epstein LG, Greer DM, Kirschen M, Rubin MA, Lewis A. Brain death, the determination of brain death, and member guidance for brain death accommodation requests: AAN position statement. Neurology. 2019 Jan 02. PMID: 30602465.

READ AT: PubMed PUBLISHED ON 12/6/2018 Greer DM. Shuhan Zhu, MD and James Otis, MD, FAAN. Semin Neurol. 2018 12; 38(6):599-600. PMID: 30522132.

READ AT: PubMed PUBLISHED ON 12/1/2018 Amorim E, Ghassemi MM, Lee JW, Greer DM, Kaplan PW, Cole AJ, Cash SS, Bianchi MT, Westover MB. Estimating the False Positive Rate of Absent Somatosensory Evoked Potentials in Cardiac Arrest Prognostication. Crit Care Med. 2018 Dec; 46(12):e1213-e1221. PMID: 30247243.

READ AT: PubMed PUBLISHED ON 10/15/2018 Greer DM. Ariane Lewis, MD and James L. Bernat, MD. Semin Neurol. 2018 Oct; 38(5):493-494. PMID: 30321885.

READ AT: PubMed PUBLISHED ON 9/11/2018 Lewis A, Bernat JL, Blosser S, Bonnie RJ, Epstein LG, Hutchins J, Kirschen MP, Rubin M, Russell JA, Sattin JA, Wijdicks EFM, Greer DM. Author response: An interdisciplinary response to contemporary concerns about brain death determination. Neurology. 2018 Sep 11; 91(11):536-538. PMID: 30201752.

READ AT: PubMed PUBLISHED ON 9/1/2018 Zhang LY, Zhang J, Kim RK, Matthews JL, Rudich DS, Greer DM, Lesser RL, Amin H. Risk of Acute Ischemic Stroke in Patients With Monocular Vision Loss of Vascular Etiology. J Neuroophthalmol. 2018 Sep; 38(3):328-333. PMID: 29369960.

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