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Jack Hirsh
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Best Scientists
2025
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Medicine
Canada
2026

D-Index & Metrics

Best Scientists

D-Index
174
Citations
126527
World Ranking
741
National Ranking
17

Medicine

D-Index
174
Citations
125448
World Ranking
454
National Ranking
10

Jack Hirsh publication distribution in Medicine in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Medicine in 2026. The highlighted bar marks where Jack Hirsh sits on this spectrum.

101–120 publications: 5 scientists 121–140 publications: 26 scientists 141–160 publications: 73 scientists 161–180 publications: 155 scientists 181–200 publications: 230 scientists 201–220 publications: 363 scientists 221–240 publications: 487 scientists 241–260 publications: 545 scientists 261–280 publications: 722 scientists 281–300 publications: 768 scientists 301–320 publications: 834 scientists 321–340 publications: 895 scientists 341–360 publications: 922 scientists 361–380 publications: 838 scientists 381–400 publications: 861 scientists 401–420 publications: 918 scientists 421–440 publications: 806 scientists 441–460 publications: 771 scientists 461–480 publications: 751 scientists 481–500 publications: 713 scientists 501–520 publications: 617 scientists 521–540 publications: 610 scientists 541–560 publications: 537 scientists 561–580 publications: 504 scientists 581–600 publications: 509 scientists 601–620 publications: 396 scientists 621–640 publications: 386 scientists 641–660 publications: 371 scientists 661–680 publications: 340 scientists 681–700 publications: 336 scientists 701–720 publications: 307 scientists 721–740 publications: 259 scientists 741–760 publications: 230 scientists 761–780 publications: 228 scientists 781–800 publications: 217 scientists 801–820 publications: 204 scientists 821–840 publications: 186 scientists 841–860 publications: 177 scientists 861–880 publications: 155 scientists 881–900 publications: 139 scientists 901–920 publications: 145 scientists 921–940 publications: 116 scientists 941–960 publications: 133 scientists 961–980 publications: 91 scientists 981–1,000 publications: 96 scientists 1,001–1,020 publications: 77 scientists 1,021–1,040 publications: 70 scientists 1,041–1,060 publications: 63 scientists 1,061–1,080 publications: 77 scientists 1,081–1,100 publications: 49 scientists 1,101–1,120 publications: 54 scientists 1,121–1,140 publications: 49 scientists 1,141–1,160 publications: 51 scientists 1,161–1,180 publications: 35 scientists 1,181–1,200 publications: 39 scientists 1,201–1,220 publications: 26 scientists 1,221–1,240 publications: 37 scientists 1,241–1,260 publications: 36 scientists 1,261–1,280 publications: 27 scientists 1,281–1,300 publications: 32 scientists 1,301–1,320 publications: 28 scientists 1,321–1,340 publications: 17 scientists 1,341–1,360 publications: 30 scientists 1,361–1,380 publications: 28 scientists 1,381–1,400 publications: 17 scientists 1,401–1,420 publications: 21 scientists 1,421–1,440 publications: 15 scientists 1,441–1,460 publications: 12 scientists 1,461–1,480 publications: 12 scientists 1,481–1,500 publications: 18 scientists 1,501–1,520 publications: 14 scientists 1,521–1,540 publications: 17 scientists 1,541–1,560 publications: 15 scientists 1,561–1,580 publications: 6 scientists 1,581–1,600 publications: 2 scientists 1,601–1,620 publications: 12 scientists 1,621–1,640 publications: 11 scientists 1,641–1,660 publications: 8 scientists 1,661–1,680 publications: 5 scientists 1,681–1,700 publications: 5 scientists 1,701–1,720 publications: 10 scientists 1,721–1,740 publications: 12 scientists 1,741–1,760 publications: 14 scientists 1,761–1,780 publications: 6 scientists 1,781–1,795 publications: 5 scientists 1,796+ publications: 100 scientists
101 publications 1,796+

This scientist: 838 publications — 89th percentile

89% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,796 publications or more.

Jack Hirsh D-index placement in Medicine in 2026

The chart shows the D-index (discipline H-index) distribution of Medicine scientists ranked by Research.com in 2026. The highlighted bar marks where Jack Hirsh sits on this spectrum.

70–71 D-Index: 226 scientists 72–73 D-Index: 391 scientists 74–75 D-Index: 574 scientists 76–77 D-Index: 730 scientists 78–79 D-Index: 891 scientists 80–81 D-Index: 972 scientists 82–83 D-Index: 1,027 scientists 84–85 D-Index: 1,003 scientists 86–87 D-Index: 960 scientists 88–89 D-Index: 970 scientists 90–91 D-Index: 922 scientists 92–93 D-Index: 839 scientists 94–95 D-Index: 808 scientists 96–97 D-Index: 779 scientists 98–99 D-Index: 668 scientists 100–101 D-Index: 611 scientists 102–103 D-Index: 630 scientists 104–105 D-Index: 513 scientists 106–107 D-Index: 541 scientists 108–109 D-Index: 445 scientists 110–111 D-Index: 429 scientists 112–113 D-Index: 399 scientists 114–115 D-Index: 393 scientists 116–117 D-Index: 318 scientists 118–119 D-Index: 302 scientists 120–121 D-Index: 287 scientists 122–123 D-Index: 255 scientists 124–125 D-Index: 256 scientists 126–127 D-Index: 252 scientists 128–129 D-Index: 230 scientists 130–131 D-Index: 179 scientists 132–133 D-Index: 168 scientists 134–135 D-Index: 163 scientists 136–137 D-Index: 159 scientists 138–139 D-Index: 134 scientists 140–141 D-Index: 134 scientists 142–143 D-Index: 118 scientists 144–145 D-Index: 109 scientists 146–147 D-Index: 106 scientists 148–149 D-Index: 74 scientists 150–151 D-Index: 79 scientists 152–153 D-Index: 80 scientists 154–155 D-Index: 87 scientists 156–157 D-Index: 57 scientists 158–159 D-Index: 74 scientists 160–161 D-Index: 69 scientists 162–163 D-Index: 60 scientists 164–165 D-Index: 53 scientists 166–167 D-Index: 39 scientists 168–169 D-Index: 42 scientists 170–171 D-Index: 32 scientists 172–173 D-Index: 39 scientists 174–175 D-Index: 40 scientists 176–177 D-Index: 28 scientists 178–179 D-Index: 19 scientists 180–181 D-Index: 23 scientists 182–183 D-Index: 31 scientists 184–185 D-Index: 18 scientists 186–187 D-Index: 20 scientists 188–189 D-Index: 22 scientists 190–191 D-Index: 13 scientists 192–193 D-Index: 21 scientists 194–195 D-Index: 12 scientists 196–197 D-Index: 12 scientists 198–199 D-Index: 14 scientists 200–201 D-Index: 15 scientists 202–203 D-Index: 13 scientists 204–205 D-Index: 10 scientists 206–207 D-Index: 8 scientists 208–209 D-Index: 4 scientists 210–211 D-Index: 12 scientists 212–213 D-Index: 11 scientists 214–215 D-Index: 10 scientists 216 D-Index: 4 scientists 217+ D-Index: 98 scientists
70 D-Index 217+

This scientist: 174 D-Index — 98th percentile

98% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 217 D-Index or more.

Research.com Recognitions

  • 2026 - Research.com Medicine in Canada Leader Award
  • 2025 - Research.com Best Scientists Award
  • 2025 - Research.com Medicine in Canada Leader Award
  • 2023 - Research.com Medicine in Canada Leader Award
  • 2022 - Research.com Medicine in Canada Leader Award
  • 2000 - Canada Gairdner International Award
  • 1999 - Fellow of the Royal Society of Canada Academy of Science
  • Member of the Association of American Physicians
  • Member of the Association of American Physicians
  • Member of the Association of American Physicians
  • Member of the Association of American Physicians

Overview

Jack Hirsh is affiliated with McMaster University in Canada and has a research focus primarily in Medicine, with a significant emphasis on Cardiology and Cardiovascular Medicine. Their body of work includes contributions to subfields such as Internal Medicine, Immunology, Surgery, and Pulmonary and Respiratory Medicine.

The scientist's research topics cover several areas with notable attention to:

  • Atrial Fibrillation Management and Outcomes
  • Cardiac Arrhythmias and Treatments
  • Venous Thromboembolism Diagnosis and Management
  • Cardiac electrophysiology and arrhythmias
  • Atherosclerosis and Cardiovascular Diseases
  • Acute Myocardial Infarction Research
  • Antiplatelet Therapy and Cardiovascular Diseases

Frequent coauthors in their research collaborations include:

  • Noel Chan
  • John W. Eikelboom
  • Vinai Bhagirath
  • Tim A.C. de Vries
  • Jeffrey S. Ginsberg

The scientist has published in a variety of journals and frequently appears in the following venues:

  • Thrombosis and Haemostasis
  • Canadian Journal of Cardiology
  • Seminars in Thrombosis and Hemostasis
  • TH Open
  • Journal of Thrombosis and Haemostasis

Recent papers by Jack Hirsh include:

  • "Peripheral Oxygen Saturation in Older Persons Wearing Nonmedical Face Masks in Community Settings" (2020) published in JAMA
  • "Apixaban for Stroke Prevention in Atrial Fibrillation: Why are Event Rates Higher in Clinical Practice than in Randomized Trials?-A Systematic Review" (2020) published in Thrombosis and Haemostasis
  • "Inflammation as a Mechanism and Therapeutic Target in Peripheral Artery Disease" (2022) published in Canadian Journal of Cardiology
  • "Clinical Studies with Anticoagulants that Have Changed Clinical Practice" (2023) published in Seminars in Thrombosis and Hemostasis
  • "The historical origins of modern international normalized ratio targets" (2024) published in Journal of Thrombosis and Haemostasis

Throughout the career, Jack Hirsh has been recognized with several awards, including the Canada Gairdner International Award in 2000, induction as a Fellow of the Royal Society of Canada in 1999 within the Academy of Science, and membership in the Association of American Physicians.

Best Publications

  • American Heart Association/American College of Cardiology Foundation Guide to Warfarin Therapy

    Jack Hirsh;Valentin Fuster;Jack Ansell;Jonathan L. Halperin

  • Evidence-Based Medicine: A New Approach to Teaching the Practice of Medicine

    Gordon Guyatt;John Cairns;David Churchill;Deborah Cook

  • Heparin-Induced Thrombocytopenia in Patients Treated with Low-Molecular-Weight Heparin or Unfractionated Heparin

    Theodore E. Warkentin;Mark N. Levine;Jack Hirsh;Peter Horsewood

  • Pharmacology and management of the vitamin K antagonists: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines (8th Edition).

    Jack Ansell;Jack Hirsh;Elaine Hylek;Alan Jacobson

  • Oral Anticoagulants: Mechanism of Action, Clinical Effectiveness, and Optimal Therapeutic Range

    Jack Hirsh;James E. Dalen;David R. Anderson;Leon Poller

  • The Pharmacology and Management of the Vitamin K Antagonists : The Seventh ACCP Conference on Antithrombotic and Thrombolytic Therapy

    Jack Ansell;Jack Hirsh;Leon Poller;Henry Bussey

  • Derivation of a Simple Clinical Model to Categorize Patients Probability of Pulmonary Embolism: Increasing the Models Utility with the SimpliRED D-dimer

    Philip S. Wells;David R. Anderson;Marc Rodger;Jeffrey S. Ginsberg

  • Heparin and Low-Molecular-Weight Heparin Mechanisms of Action, Pharmacokinetics, Dosing, Monitoring, Efficacy, and Safety

    Jack Hirsh;Theodore E. Warkentin;Stephen G. Shaughnessy;Sonia S. Anand

  • A comparison of low-molecular-weight heparin administered primarily at home with unfractionated heparin administered in the hospital for proximal deep-vein thrombosis.

    Mark Levine;Michael Gent;Jack Hirsh;Jacques Leclerc

  • Aspirin-Resistant Thromboxane Biosynthesis and the Risk of Myocardial Infarction, Stroke, or Cardiovascular Death in Patients at High Risk for Cardiovascular Events

    John W. Eikelboom;Jack Hirsh;Jeffrey I. Weitz;Marilyn Johnston

  • Heparin and Low-Molecular-Weight Heparin: The Seventh ACCP Conference on Antithrombotic and Thrombolytic Therapy

    Jack Hirsh;Robert Raschke

  • A comparison of three months of anticoagulation with extended anticoagulation for a first episode of idiopathic venous thromboembolism.

    Clive Kearon;Michael Gent;Michael Gent;Jack Hirsh;Jack Hirsh;Jeffrey Weitz

  • Clot-bound thrombin is protected from inhibition by heparin-antithrombin III but is susceptible to inactivation by antithrombin III-independent inhibitors.

    J I Weitz;M Hudoba;D Massel;J Maraganore

  • Use of a clinical model for safe management of patients with suspected pulmonary embolism.

    Philip S. Wells;Jeffrey S. Ginsberg;David R. Anderson;Clive Kearon

  • Heparin and low-molecular-weight heparin: mechanisms of action, pharmacokinetics, dosing considerations, monitoring, efficacy, and safety.

    Jack Hirsh;Theodore E. Warkentin;Robert Raschke;Christopher Granger

  • A Comparison of Two Intensities of Warfarin for the Prevention of Recurrent Thrombosis in Patients with the Antiphospholipid Antibody Syndrome

    Mark A. Crowther;Jeff S. Ginsberg;Jim Julian;Judah Denburg

  • Accuracy of clinical assessment of deep-vein thrombosis

    PhilipS. Wells;Jack Hirsh;DavidR. Anderson;AnthonyW.A. Lensing

  • Venous thromboembolism, thrombophilia, antithrombotic therapy, and pregnancy: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines (8th Edition).

    Shannon M. Bates;Ian A. Greer;Ingrid Pabinger;Shoshanna Sofaer

  • Antiplatelet drugs: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines (8th Edition).

    Carlo Patrono;Colin Baigent;Jack Hirsh;Gerald Roth

  • Low-molecular-weight heparin in the treatment of patients with venous thromboembolism

    JW tenCate;HR Buller;M Gent;J Hirsh

Frequent Co-Authors

Jeffrey S. Ginsberg
Jeffrey S. Ginsberg McMaster University
Michael Gent
Michael Gent McMaster University
John W. Eikelboom
John W. Eikelboom Population Health Research Institute
Alexander G.G. Turpie
Alexander G.G. Turpie McMaster University
Jeffrey I. Weitz
Jeffrey I. Weitz McMaster University
Mark Levine
Mark Levine McMaster University
Frederick A. Ofosu
Frederick A. Ofosu McMaster University
Clive Kearon
Clive Kearon McMaster University
Russell D. Hull
Russell D. Hull University of Calgary
Morris A. Blajchman
Morris A. Blajchman McMaster University

External Links

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Best Scientists Citing Jack Hirsh

Mark Crowther

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University of Padua

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Gregory Y.H. Lip

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Brigham and Women's Hospital

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McMaster University

Publications: 156

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Population Health Research Institute

Publications: 155

Jeffrey I. Weitz

Jeffrey I. Weitz

McMaster University

Publications: 148

Harry R. Büller

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University of Amsterdam

Publications: 148

James D. Douketis

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McMaster University

Publications: 144

Alexander G.G. Turpie

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Publications: 136

Sam Schulman

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McMaster University

Publications: 130

Marc A. Rodger

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Ottawa Hospital

Publications: 129

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Giancarlo Agnelli

University of Perugia

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