World's Best Scientists 2026 revealed!
William A. Ghali

William A. Ghali

D-Index & Metrics

Medicine

D-Index
109
Citations
68853
World Ranking
5660
National Ranking
223

William A. Ghali 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 William A. Ghali 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: 611 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: 512 publications — 60th percentile

60% of scientists in this discipline score the same or lower.

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

William A. Ghali 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 William A. Ghali 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: 400 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: 109 D-Index — 72nd percentile

72% 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

  • 2017 - Fellow of the Royal Society of Canada Academy of Science

Overview

William A. Ghali is affiliated with the University of Calgary in Canada. Their research spans multiple areas within health professions and medicine, with a substantial focus on health information management and health systems.

Their recent research includes the following papers:

  • Effect of Clinical Decision Support With Audit and Feedback on Prevention of Acute Kidney Injury in Patients Undergoing Coronary Angiography, 2022, JAMA
  • Prevalence of antimicrobial resistance genes and its association with restricted antimicrobial use in food-producing animals: a systematic review and meta-analysis, 2020, Journal of Antimicrobial Chemotherapy
  • Human-centred design processes for clinical decision support: A pulmonary embolism case study, 2020, International Journal of Medical Informatics
  • An international Delphi consensus study to define motivational communication in the context of developing a training program for physicians, 2020, Translational Behavioral Medicine
  • Prophylactic Endoscopic Clipping Does Not Prevent Delayed Postpolypectomy Bleeding in Routine Clinical Practice: A Propensity Score-Matched Cohort Study, 2020, The American Journal of Gastroenterology

Their work is frequently published in the following venues:

  • BMC Medical Informatics and Decision Making
  • BMJ Open Quality
  • International Journal of Medical Informatics
  • CMAJ Open
  • PLoS ONE

William A. Ghali's research covers key fields of study, including:

  • Health Professions
  • Medicine

Subfields of their studies highlight the following areas:

  • General Health Professions
  • Health Information Management
  • Economics and Econometrics
  • Public Health, Environmental and Occupational Health
  • Surgery

Main topics within their research include:

  • Medical Coding and Health Information
  • Electronic Health Records Systems
  • Primary Care and Health Outcomes
  • Chronic Disease Management Strategies
  • Health Systems, Economic Evaluations, Quality of Life
  • Geriatric Care and Nursing Homes
  • Food Security and Health in Diverse Populations

Frequent collaborators in their publications include:

  • Danielle A. Southern
  • Hude Quan (8 publications)
  • Karen Tang (7 publications)
  • Matthew T. James (6 publications)
  • Wrechelle Ocampo (6 publications)

William A. Ghali has been recognized as a Fellow of the Royal Society of Canada in 2017 in the Academy of Science category.

Best Publications

  • Coding algorithms for defining comorbidities in ICD-9-CM and ICD-10 administrative data.

    Hude Quan;Vijaya Sundararajan;Patricia Halfon;Andrew Fong

  • Increasing Incidence and Prevalence of the Inflammatory Bowel Diseases With Time, Based on Systematic Review

    Natalie A. Molodecky;Ing Shian Soon;Doreen M. Rabi;William A. Ghali

  • The Canadian Adverse Events Study: the incidence of adverse events among hospital patients in Canada

    G. Ross Baker;Peter G. Norton;Virginia Flintoft;Régis Blais

  • New ICD-10 version of the Charlson comorbidity index predicted in-hospital mortality

    Vijaya Sundararajan;Toni Henderson;Catherine L. Perry;Amanda Muggivan

  • Association of alcohol consumption with selected cardiovascular disease outcomes: a systematic review and meta-analysis

    Paul E Ronksley;Susan E Brien;Barbara J Turner;Kenneth J Mukamal

  • Physician wellness: a missing quality indicator.

    Jean E Wallace;Jane B Lemaire;William A Ghali

  • Active Smoking and the Risk of Type 2 Diabetes: A Systematic Review and Meta-analysis

    Carole Willi;Patrick Bodenmann;William A. Ghali;Peter D. Faris

  • D-dimer for the exclusion of acute venous thrombosis and pulmonary embolism: a systematic review.

    Stein Pd;Hull Rd;Patel Kc;Olson Re

  • Restricting the use of antibiotics in food-producing animals and its associations with antibiotic resistance in food-producing animals and human beings: a systematic review and meta-analysis

    Karen L Tang;Niamh P Caffrey;Diego B Nóbrega;Susan C Cork

  • Effect of alcohol consumption on biological markers associated with risk of coronary heart disease: systematic review and meta-analysis of interventional studies

    Susan E Brien;Paul E Ronksley;Barbara J Turner;Kenneth J Mukamal

  • Exploring physician specialist response rates to web-based surveys

    Ceara Tess Cunningham;Hude Quan;Brenda R. Hemmelgarn;Tom W. Noseworthy

  • Assessing Validity of ICD-9-CM and ICD-10 Administrative Data in Recording Clinical Conditions in a Unique Dually Coded Database

    Hude Quan;Bing Li;L Duncan Saunders;Gerry A Parsons

  • Why Do Patients With Atrial Fibrillation Not Receive Warfarin

    Tammy J. Bungard;William A. Ghali;Koon K. Teo;Finlay A. McAlister

  • Dealing with missing data in a multi-question depression scale: a comparison of imputation methods

    Fiona M Shrive;Fiona M Shrive;Heather Stuart;Heather Stuart;Hude Quan;Hude Quan;William A Ghali

  • Validity of information on comorbidity derived rom ICD-9-CCM administrative data.

    Hude Quan;Gerry A Parsons;William A Ghali

  • Comparison of the Elixhauser and Charlson/Deyo methods of comorbidity measurement in administrative data.

    Danielle A Southern;Hude Quan;William A Ghali

  • A comprehensive view of sex-specific issues related to cardiovascular disease

    Louise Pilote;Kaberi Dasgupta;Veena Guru;Karin H. Humphries

  • Cost analysis of ongoing care of patients with end-stage renal disease: the impact of dialysis modality and dialysis access.

    Helen Lee;Braden Manns;Ken Taub;William A. Ghali

  • Adapting the charlson comorbidity index for use in patients with ESRD

    Brenda R Hemmelgarn;Braden J Manns;Hude Quan;William A Ghali

  • Early Risk of Stroke After Transient Ischemic Attack: A Systematic Review and Meta-analysis

    Caren M. Wu;Kevin McLaughlin;Diane L. Lorenzetti;Michael D. Hill

Frequent Co-Authors

Hude Quan
Hude Quan University of Calgary
Braden J. Manns
Braden J. Manns University of Calgary
Finlay A. McAlister
Finlay A. McAlister University of Alberta
Rollin Brant
Rollin Brant University of British Columbia
Brenda R. Hemmelgarn
Brenda R. Hemmelgarn University of Calgary
Jacques Cornuz
Jacques Cornuz University Center for General Medicine and Public Health (Unisanté)
Harold Alan Pincus
Harold Alan Pincus Columbia University
Russell D. Hull
Russell D. Hull University of Calgary
Patrick S. Romano
Patrick S. Romano University of California, Davis
Ross T. Tsuyuki
Ross T. Tsuyuki University of Alberta

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