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Medicine
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2026

D-Index & Metrics

Best Scientists

D-Index
198
Citations
142535
World Ranking
316
National Ranking
4

Medicine

D-Index
201
Citations
145852
World Ranking
183
National Ranking
2

Nicholas J. Talley 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 Nicholas J. Talley 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: 2,009 publications — 100th percentile

100% of scientists in this discipline score the same or lower.

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

Nicholas J. Talley 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 Nicholas J. Talley 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: 201 D-Index — 99th percentile

99% 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 Australia Leader Award
  • 2025 - Research.com Best Scientists Award
  • 2025 - Research.com Medicine in Australia Leader Award
  • 2023 - Research.com Medicine in Australia Leader Award
  • 2022 - Research.com Medicine in Australia Leader Award
  • 2014 - Fellow of the Australian Academy of Health and Medical Science

Overview

Nicholas J. Talley is affiliated with the University of Newcastle Australia. Their research spans multiple areas within medicine and environmental science, with a specific focus on health, toxicology and mutagenesis, surgery, gastroenterology, and physiology. The work reflects an interdisciplinary approach combining clinical and environmental health topics.

The scientist's primary fields of study include:

  • Medicine
  • Environmental Science

Key subfields of study encompass:

  • Health, Toxicology and Mutagenesis
  • Surgery
  • Gastroenterology
  • General Health Professions
  • Physiology

Frequent research topics covered in their publications are:

  • Climate Change and Health Impacts
  • Gastrointestinal motility and disorders
  • Air Quality and Health Impacts
  • Global Health Care Issues
  • Helicobacter pylori-related gastroenterology studies
  • Eosinophilic Esophagitis
  • Gastroesophageal reflux and treatments

The researcher has published extensively in notable journals. The most frequent publication venues include:

  • The Medical Journal of Australia
  • Gastroenterology
  • Neurogastroenterology & Motility
  • Alimentary Pharmacology & Therapeutics
  • The American Journal of Gastroenterology

Among recent papers authored or co-authored by Nicholas J. Talley are:

  • What Causes Functional Gastrointestinal Disorders? A Proposed Disease Model, 2020, The American Journal of Gastroenterology
  • Functional gastrointestinal disorders: advances in understanding and management, 2020, The Lancet
  • Call for emergency action to limit global temperature increases, restore biodiversity, and protect health, 2021, BMJ
  • International Consensus Recommendations for Eosinophilic Gastrointestinal Disease Nomenclature, 2022, Clinical Gastroenterology and Hepatology
  • Standard gastroenterologist versus multidisciplinary treatment for functional gastrointestinal disorders (MANTRA): an open-label, single-centre, randomised controlled trial, 2020, The Lancet Gastroenterology & Hepatology

Frequent co-authors collaborating with Nicholas J. Talley include:

  • Lukoye Atwoli
  • Thomas Benfield
  • Raffaella Bosurgi
  • Fiona Godlee
  • Stephen Hancocks

Among their recognitions, Nicholas J. Talley was named Fellow of the Australian Academy of Health and Medical Science in 2014.

Best Publications

  • U.S. householder survey of functional gastrointestinal disorders. Prevalence, sociodemography, and health impact.

    D A Drossman;Z Li;E Andruzzi;R D Temple

  • Functional gastroduodenal disorders

    Jan Tack;Nicholas J. Talley;Michael Camilleri;Gerald Holtmann

  • Prevalence and clinical spectrum of gastroesophageal reflux : a population-based study in Olmsted County, Minnesota

    GR Locke;NJ Talley;SL Fett;AR Zinsmeister

  • An evidence-based appraisal of reflux disease management — the Genval Workshop Report

    J. Brun;A. M. Fendrick;M. B. Fennerty

  • Helicobacter pylori in Peptic Ulcer Disease

    Tadataka Yamada;John G. Searle;Dennis Ahnen

  • Rome IV - Gastroduodenal Disorders.

    Stanghellini;Talley Nj;Chan F;Hasler Wl

  • Eosinophilic gastroenteritis: a clinicopathological study of patients with disease of the mucosa, muscle layer, and subserosal tissues.

    N J Talley;R G Shorter;S F Phillips;A R Zinsmeister

  • Updated International Consensus Diagnostic Criteria for Eosinophilic Esophagitis: Proceedings of the AGREE Conference.

    Evan S. Dellon;Chris A. Liacouras;Javier Molina-Infante;Glenn T. Furuta

  • Prevalence of Barrett's esophagus in the general population: an endoscopic study.

    Jukka Ronkainen;Pertti Aro;Tom Storskrubb;Sven–Erik Johansson

  • Dyspepsia and dyspepsia subgroups: A population-based study

    NJ Talley;AR Zinsmeister;CD Schleck;LJ Melton

  • The efficacy of probiotics in the treatment of irritable bowel syndrome: a systematic review

    Paul Moayyedi;Alexander Charles Ford;Nicholas J Talley;Filippo Cremonini

  • An Evidence-Based Position Statement on the Management of Irritable Bowel Syndrome

    Lawrence J. Brandt;William D. Chey;Amy E. Foxx-Orenstein;Eammon M M Quigley

  • Epidemiology of colonic symptoms and the irritable bowel syndrome

    Nicholas J. Talley;Alan R Zinsmeister;Carol E. Van Dyke;L.Joseph Melton

  • Effect of fibre, antispasmodics, and peppermint oil in the treatment of irritable bowel syndrome: systematic review and meta-analysis

    Alexander C Ford;Nicholas J Talley;Brennan M R Spiegel;Amy E Foxx-Orenstein

  • Identification of sub-groups of functional gastrointestinal disorders

    DA Drossman;WG Thompson;NJ Talley;P Funch-Jensen

  • Immune activation in patients with irritable bowel syndrome

    Tobias Liebregts;Birgit Adam;Christoph Bredack;Alexander Röth

  • Prevalence of gastrointestinal symptoms associated with diabetes mellitus: a population-based survey of 15,000 adults.

    Peter Bytzer;Nicholas J. Talley;Melanie Leemon;Lisa J. Young

  • Efficacy of antidepressants and psychological therapies in irritable bowel syndrome: systematic review and meta-analysis

    Alexander Charles Ford;Nicholas J Talley;Philip S Schoenfeld;Eamonn Mm Quigley

  • Guidelines for the Management of Dyspepsia

    Nicholas J. Talley;Nimish Vakil

  • Efficacy of biological therapies in inflammatory bowel disease: systematic review and meta-analysis.

    Alexander C Ford;William J Sandborn;Khurram J Khan;Stephen B Hanauer

Frequent Co-Authors

Gerald Holtmann
Gerald Holtmann University of Queensland
Cathy D. Schleck
Cathy D. Schleck Mayo Clinic
Paul Moayyedi
Paul Moayyedi McMaster University
Alexander C. Ford
Alexander C. Ford University of Leeds
Jan Tack
Jan Tack KU Leuven
Nimish Vakil
Nimish Vakil University of Wisconsin–Madison
Michael Horowitz
Michael Horowitz University of Adelaide
Mark Morrison
Mark Morrison University of Queensland

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