World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
87
Citations
30287
World Ranking
13570
National Ranking
557

David R. Mack 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 David R. Mack 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: 486 publications — 56th percentile

56% of scientists in this discipline score the same or lower.

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

David R. Mack 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 David R. Mack 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: 87 D-Index — 34th percentile

34% of scientists in this discipline score the same or lower.

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

Overview

David R. Mack is affiliated with the University of Ottawa in Canada. Their research spans a broad range of topics primarily within medicine and biochemistry, genetics, and molecular biology. The main focus areas of their work include inflammatory bowel disease, microscopic colitis, and gut microbiota and health, with additional interests in adolescent and pediatric healthcare, Helicobacter pylori-related gastroenterology, childhood cancer survivors' quality of life, and eosinophilic esophagitis.

Their research extends into several subfields including genetics, epidemiology, molecular biology, surgery, and speech and hearing. These domains reflect a multidisciplinary approach to gastrointestinal and related health sciences.

David R. Mack has published extensively, with frequent contributions appearing in venues such as:

  • Gastroenterology
  • Journal of the Canadian Association of Gastroenterology
  • Journal of Crohn's and Colitis
  • Inflammatory Bowel Diseases
  • Journal of Pediatric Gastroenterology and Nutrition

Recent papers by David R. Mack include:

  • "Butyrate's role in human health and the current progress towards its clinical application to treat gastrointestinal disease," 2022, Clinical Nutrition
  • "Novel Fecal Biomarkers That Precede Clinical Diagnosis of Ulcerative Colitis," 2020, Gastroenterology
  • "Altered Gut Microbiome Composition and Function Are Associated With Gut Barrier Dysfunction in Healthy Relatives of Patients With Crohn's Disease," 2022, Gastroenterology
  • "Mediterranean-Like Dietary Pattern Associations With Gut Microbiome Composition and Subclinical Gastrointestinal Inflammation," 2022, Gastroenterology
  • "Revealing proteome-level functional redundancy in the human gut microbiome using ultra-deep metaproteomics," 2023, Nature Communications

Their frequent collaborators include Anne M. Griffiths, Kevan Jacobson, Anthony Otley, Hien Q. Huynh, and Williams Turpin. These partnerships have contributed to a significant body of co-authored research in related medical fields.

Best Publications

  • The Treatment-Naive Microbiome in New-Onset Crohn’s Disease

    Dirk Gevers;Subra Kugathasan;Lee A. Denson;Yoshiki Vázquez-Baeza

  • Probiotics inhibit enteropathogenic E. coli adherence in vitro by inducing intestinal mucin gene expression.

    David R. Mack;Sonia Michail;Shu Wei;Laura McDougall

  • Development, Validation, and Evaluation of a Pediatric Ulcerative Colitis Activity Index: A Prospective Multicenter Study

    Dan Turner;Anthony R. Otley;David Mack;Jeffrey Hyams

  • The prevalence of celiac disease in average-risk and at-risk Western European populations: a systematic review.

    Catherine Dubé;Alaa Rostom;Richmond Sy;Ann Cranney

  • Extracellular MUC3 mucin secretion follows adherence of Lactobacillus strains to intestinal epithelial cells in vitro.

    D R Mack;S Ahrne;L Hyde;S Wei

  • The diagnostic accuracy of serologic tests for celiac disease: A systematic review

    Alaa Rostom;Catherine Dubé;Ann Cranney;Navaaz Saloojee

  • Prediction of complicated disease course for children newly diagnosed with Crohn's disease: a multicentre inception cohort study

    Subra Kugathasan;Lee A. Denson;Thomas D. Walters;Mi Ok Kim

  • Pediatric Crohn disease patients exhibit specific ileal transcriptome and microbiome signature

    Yael Haberman;Timothy L. Tickle;Phillip J. Dexheimer;Mi-Ok Kim

  • Increasing incidence of paediatric inflammatory bowel disease in Ontario, Canada: evidence from health administrative data

    Eric Ian Benchimol;Astrid Guttmann;Anne M Griffiths;Linda Rabeneck

  • Altered intestinal microbiota–host mitochondria crosstalk in new onset Crohn’s disease

    Walid Mottawea;Cheng-Kang Chiang;Marcus Mühlbauer;Amanda E. Starr

  • Imbalances in Dietary Consumption of Fatty Acids, Vegetables, and Fruits Are Associated With Risk for Crohn's Disease in Children

    Devendra K Amre;Savio D'Souza;Kenneth Morgan;Gillian Seidman

  • Evaluation of the pediatric crohn disease activity index: a prospective multicenter experience.

    Jeffrey Hyams;James Markowitz;Anthony Otley;Joel Rosh

  • Ulcerative colitis mucosal transcriptomes reveal mitochondriopathy and personalized mechanisms underlying disease severity and treatment response

    Yael Haberman;Yael Haberman;Rebekah Karns;Phillip J. Dexheimer;Melanie Schirmer

  • Appraisal of the pediatric ulcerative colitis activity index (PUCAI)

    Dan Turner;Dan Turner;Jeffrey Hyams;James Markowitz;Trudy Lerer

  • Trends in Epidemiology of Pediatric Inflammatory Bowel Disease in Canada: Distributed Network Analysis of Multiple Population-Based Provincial Health Administrative Databases

    Eric I Benchimol;Charles N Bernstein;Alain Bitton;Matthew W Carroll

  • Biliary Atresia: The Canadian Experience

    Richard A. Schreiber;Collin C. Barker;Eve A. Roberts;Steven R. Martin

  • Increased effectiveness of early therapy with anti-tumor necrosis factor-α vs an immunomodulator in children with Crohn's disease.

    Thomas D. Walters;Mi Ok Kim;Lee A. Denson;Anne M. Griffiths

  • Alterations in the gut microbiome of children with severe ulcerative colitis.

    Sonia Michail;Matthew Durbin;Dan Turner;Anne M. Griffiths

  • Mathematical weighting of the pediatric Crohn's disease activity index (PCDAI) and comparison with its other short versions

    Dan Turner;Anne M. Griffiths;Thomas D. Walters;Tong Seah

  • Severe pediatric ulcerative colitis: a prospective multicenter study of outcomes and predictors of response.

    Dan Turner;David Mack;Neal Leleiko;Thomas D. Walters

Frequent Co-Authors

Anne M. Griffiths
Anne M. Griffiths University of Toronto
Jeffrey S. Hyams
Jeffrey S. Hyams University of Connecticut
Subra Kugathasan
Subra Kugathasan Emory University
Lee A. Denson
Lee A. Denson Cincinnati Children's Hospital Medical Center
Robert N. Baldassano
Robert N. Baldassano Children's Hospital of Philadelphia
Jonathan P. Evans
Jonathan P. Evans University of Western Australia
Ernest G. Seidman
Ernest G. Seidman McGill University
Dan Turner
Dan Turner Hebrew University of Jerusalem
Alain Stintzi
Alain Stintzi University of Ottawa
Marla Dubinsky
Marla Dubinsky Icahn School of Medicine at Mount Sinai

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