World's Best Scientists 2026 revealed!
Paul Moayyedi

Paul Moayyedi

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Medicine
Canada
2023

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Medicine 138 1838 1710 66 62 738 66770

Paul Moayyedi publications per year

The chart shows the history of publications by Paul Moayyedi between 1994 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Paul Moayyedi published across 33 years, from 1994 to 2026, averaging 24.9 papers a year. Output peaked at 44 publications in 2008. 43 of the 822 publications appeared in the last two years.

No. of publications
10 20 30 40
Bar chart. Horizontal axis: year, 1994 to 2026. Vertical axis: number of publications, 0 to 44. Peak 44 publications in 2008. 1994: 2 publications 1995: 7 publications 1996: 5 publications 1997: 9 publications 1998: 12 publications 1999: 10 publications 2000: 20 publications 2001: 14 publications 2002: 14 publications 2003: 22 publications 2004: 20 publications 2005: 20 publications 2006: 21 publications 2007: 28 publications 2008: 44 publications 2009: 42 publications 2010: 42 publications 2011: 36 publications 2012: 31 publications 2013: 35 publications 2014: 29 publications 2015: 32 publications 2016: 21 publications 2017: 37 publications 2018: 28 publications 2019: 36 publications 2020: 41 publications 2021: 29 publications 2022: 29 publications 2023: 25 publications 2024: 38 publications 2025: 41 publications 2026: 2 publications
1994 2026

822 publications in total across all disciplines

View publications per year as a table
Paul Moayyedi: publications per year, 1994 to 2026
Year Publications
1994 2
1995 7
1996 5
1997 9
1998 12
1999 10
2000 20
2001 14
2002 14
2003 22
2004 20
2005 20
2006 21
2007 28
2008 44
2009 42
2010 42
2011 36
2012 31
2013 35
2014 29
2015 32
2016 21
2017 37
2018 28
2019 36
2020 41
2021 29
2022 29
2023 25
2024 38
2025 41
2026 2
Total 822
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Paul Moayyedi 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 Paul Moayyedi sits on this spectrum.

No. of scientists
200 400 600 800
Bar chart with 86 bars. Horizontal axis: publications, 101–120 to 1,796+. Vertical axis: number of scientists, 0 to 922. Most scientists, 922, have 341–360 publications. The last bar groups every scientist with 1,796 publications or more. The highlighted bar, 721–740 publications, is where this scientist sits. 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
101–120 publications 1,796+

This scientist: 738 publications — 84th percentile

84% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Medicine scientists by publication count, Research.com 2026 ranking edition. Based on 20,134 ranked scientists.
Publications Scientists This scientist
101–120 5
121–140 26
141–160 73
161–180 155
181–200 230
201–220 363
221–240 487
241–260 545
261–280 722
281–300 768
301–320 834
321–340 895
341–360 922
361–380 838
381–400 861
401–420 918
421–440 806
441–460 771
461–480 751
481–500 713
501–520 617
521–540 610
541–560 537
561–580 504
581–600 509
601–620 396
621–640 386
641–660 371
661–680 340
681–700 336
701–720 307
721–740 259 738
741–760 230
761–780 228
781–800 217
801–820 204
821–840 186
841–860 177
861–880 155
881–900 139
901–920 145
921–940 116
941–960 133
961–980 91
981–1,000 96
1,001–1,020 77
1,021–1,040 70
1,041–1,060 63
1,061–1,080 77
1,081–1,100 49
1,101–1,120 54
1,121–1,140 49
1,141–1,160 51
1,161–1,180 35
1,181–1,200 39
1,201–1,220 26
1,221–1,240 37
1,241–1,260 36
1,261–1,280 27
1,281–1,300 32
1,301–1,320 28
1,321–1,340 17
1,341–1,360 30
1,361–1,380 28
1,381–1,400 17
1,401–1,420 21
1,421–1,440 15
1,441–1,460 12
1,461–1,480 12
1,481–1,500 18
1,501–1,520 14
1,521–1,540 17
1,541–1,560 15
1,561–1,580 6
1,581–1,600 2
1,601–1,620 12
1,621–1,640 11
1,641–1,660 8
1,661–1,680 5
1,681–1,700 5
1,701–1,720 10
1,721–1,740 12
1,741–1,760 14
1,761–1,780 6
1,781–1,795 5
1,796+ 100
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Paul Moayyedi 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 Paul Moayyedi sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 75 bars. Horizontal axis: D-Index, 70–71 to 217+. Vertical axis: number of scientists, 0 to 1,027. Most scientists, 1,027, have 82–83 D-Index. The last bar groups every scientist with 217 D-Index or more. The highlighted bar, 138–139 D-Index, is where this scientist sits. 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
70–71 D-Index 217+

This scientist: 138 D-Index — 91st percentile

91% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Medicine scientists by D-index, Research.com 2026 ranking edition. Based on 20,134 ranked scientists.
D-Index Scientists This scientist
70–71 226
72–73 391
74–75 574
76–77 730
78–79 891
80–81 972
82–83 1,027
84–85 1,003
86–87 960
88–89 970
90–91 922
92–93 839
94–95 808
96–97 779
98–99 668
100–101 611
102–103 630
104–105 513
106–107 541
108–109 445
110–111 429
112–113 399
114–115 393
116–117 318
118–119 302
120–121 287
122–123 255
124–125 256
126–127 252
128–129 230
130–131 179
132–133 168
134–135 163
136–137 159
138–139 134 138
140–141 134
142–143 118
144–145 109
146–147 106
148–149 74
150–151 79
152–153 80
154–155 87
156–157 57
158–159 74
160–161 69
162–163 60
164–165 53
166–167 39
168–169 42
170–171 32
172–173 39
174–175 40
176–177 28
178–179 19
180–181 23
182–183 31
184–185 18
186–187 20
188–189 22
190–191 13
192–193 21
194–195 12
196–197 12
198–199 14
200–201 15
202–203 13
204–205 10
206–207 8
208–209 4
210–211 12
212–213 11
214–215 10
216 4
217+ 98
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Research.com Recognitions

  • 2023 - Research.com Medicine in Canada Leader Award

Overview

What is he best known for?

The fields of study he is best known for:

  • Internal medicine
  • Surgery
  • Disease

Paul Moayyedi mostly deals with Internal medicine, Gastroenterology, Meta-analysis, Placebo and Irritable bowel syndrome. His research investigates the connection between Internal medicine and topics such as Surgery that intersect with issues in Library science. His Gastroenterology study incorporates themes from Intensive care medicine, Consensus conference and Reflux, Disease, GERD.

His Meta-analysis research includes themes of Odds ratio, Treatment outcome, Sex factors and Pharmacology. His research in Placebo intersects with topics in Rifaximin, Adverse effect, Ulcerative colitis, Confidence interval and Proton-pump inhibitor. His work carried out in the field of Irritable bowel syndrome brings together such families of science as Physical therapy, Abdominal pain, Quality of life and Eluxadoline.

His most cited work include:

  • Management of Helicobacter pylori infection—the Maastricht V/Florence Consensus Report (1149 citations)
  • British Society of Gastroenterology guidelines on the diagnosis and management of Barrett's oesophagus (780 citations)
  • Fecal Microbiota Transplantation Induces Remission in Patients With Active Ulcerative Colitis in a Randomized Controlled Trial (750 citations)

What are the main themes of his work throughout his whole career to date?

His primary areas of investigation include Internal medicine, Gastroenterology, Meta-analysis, Helicobacter pylori and Randomized controlled trial. His Internal medicine study combines topics from a wide range of disciplines, such as Placebo and Surgery. In his study, which falls under the umbrella issue of Surgery, Odds ratio is strongly linked to Confidence interval.

His research investigates the link between Gastroenterology and topics such as Inflammatory bowel disease that cross with problems in Ulcerative colitis. His Helicobacter pylori research is multidisciplinary, incorporating elements of Cancer and Proton-pump inhibitor. His biological study spans a wide range of topics, including Systematic review and Physical therapy.

He most often published in these fields:

  • Internal medicine (66.46%)
  • Gastroenterology (40.91%)
  • Meta-analysis (18.18%)

What were the highlights of his more recent work (between 2016-2021)?

  • Internal medicine (66.46%)
  • Gastroenterology (40.91%)
  • Randomized controlled trial (16.46%)

In recent papers he was focusing on the following fields of study:

Paul Moayyedi mainly investigates Internal medicine, Gastroenterology, Randomized controlled trial, Meta-analysis and Irritable bowel syndrome. His research links Placebo with Internal medicine. The Placebo study combines topics in areas such as Rifaximin and Pantoprazole.

He works in the field of Gastroenterology, focusing on Helicobacter pylori in particular. As a part of the same scientific study, Paul Moayyedi usually deals with the Helicobacter pylori, concentrating on Proton-pump inhibitor and frequently concerns with Aspirin. The study incorporates disciplines such as Eluxadoline and Constipation in addition to Irritable bowel syndrome.

Between 2016 and 2021, his most popular works were:

  • Management of Helicobacter pylori infection—the Maastricht V/Florence Consensus Report (1149 citations)
  • Probiotic Bifidobacterium longum NCC3001 Reduces Depression Scores and Alters Brain Activity: A Pilot Study in Patients With Irritable Bowel Syndrome. (253 citations)
  • ACG and CAG Clinical Guideline: Management of Dyspepsia (193 citations)

In his most recent research, the most cited papers focused on:

  • Internal medicine
  • Disease
  • Cancer

Paul Moayyedi focuses on Internal medicine, Randomized controlled trial, Meta-analysis, Relative risk and Irritable bowel syndrome. His work deals with themes such as Gastroenterology and Placebo, which intersect with Internal medicine. His Randomized controlled trial study incorporates themes from Guideline, Disease and Intensive care medicine.

His Meta-analysis research includes elements of Systematic review and Gluten free. His Relative risk research incorporates elements of Physical therapy and Clinical trial. His studies deal with areas such as Lubiprostone, Constipation and Blinding as well as Irritable bowel syndrome.

Best Publications

  • Management of Helicobacter pylori infection—the Maastricht V/Florence Consensus Report

    P. Malfertheiner;F. Mégraud;C. O'Morain;Javier Gisbert

  • Fecal Microbiota Transplantation Induces Remission in Patients With Active Ulcerative Colitis in a Randomized Controlled Trial

    Paul Moayyedi;Michael G. Surette;Peter T. Kim;Peter T. Kim;Josie Libertucci

  • British Society of Gastroenterology guidelines on the diagnosis and management of Barrett's oesophagus

    Rebecca C Fitzgerald;Massimiliano di Pietro;Krish Ragunath;Yeng Ang

  • American gastroenterological association institute guideline on the diagnosis and management of asymptomatic neoplastic pancreatic cysts.

    Santhi Swaroop Vege;Barry Ziring;Rajeev Jain;Paul Moayyedi

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

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

  • The Toronto Consensus for the Treatment of Helicobacter pylori Infection in Adults

    Carlo A. Fallone;Naoki Chiba;Naoki Chiba;Sander Veldhuyzen van Zanten;Lori Fischbach

  • 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

  • Probiotic Bifidobacterium longum NCC3001 Reduces Depression Scores and Alters Brain Activity: A Pilot Study in Patients With Irritable Bowel Syndrome.

    Maria Ines Pinto-Sanchez;Geoffrey B. Hall;Kathy Ghajar;Andrea Nardelli

  • Efficacy of prebiotics, probiotics, and synbiotics in irritable bowel syndrome and chronic idiopathic constipation: systematic review and meta-analysis.

    Alexander C Ford;Eamonn M M Quigley;Brian E Lacy;Anthony J Lembo

  • Systematic Review of the Risk of Enteric Infection in Patients Taking Acid Suppression

    Jennifer Leonard;John K Marshall;Paul Moayyedi

  • 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

  • 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

  • Eradication of Helicobacter pylori for non‐ulcer dyspepsia

    Paul Moayyedi;Shelly Soo;Jonathan J Deeks;Brendan Delaney

  • Frozen vs Fresh Fecal Microbiota Transplantation and Clinical Resolution of Diarrhea in Patients With Recurrent Clostridium difficile Infection: A Randomized Clinical Trial.

    Christine H. Lee;Christine H. Lee;Theodore Steiner;Elaine O. Petrof;Marek Smieja;Marek Smieja

  • 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

  • Antibiotic Therapy in Inflammatory Bowel Disease: A Systematic Review and Meta-Analysis

    Khurram J Khan;Thomas A Ullman;Alexander C Ford;Maria T Abreu

  • Helicobacter pylori eradication therapy to prevent gastric cancer in healthy asymptomatic infected individuals: systematic review and meta-analysis of randomised controlled trials

    Alexander C Ford;Alexander C Ford;David Forman;Richard H Hunt;Yuhong Yuan

  • American College of Gastroenterology monograph on the management of irritable bowel syndrome and chronic idiopathic constipation.

    Alexander C Ford;Paul Moayyedi;Brian E Lacy;Anthony J Lembo

  • ACG and CAG Clinical Guideline: Management of Dyspepsia

    Paul M Moayyedi;Brian E Lacy;Christopher N Andrews;Robert A Enns

  • Pharmacological interventions for non‐ulcer dyspepsia

    Paul Moayyedi;Soo Shelly;Jonathan J Deeks;Brendan Delaney

Frequent Co-Authors

Alexander C. Ford
Alexander C. Ford University of Leeds
Nicholas J. Talley
Nicholas J. Talley University of Newcastle Australia
Janusz Jankowski
Janusz Jankowski University College of Osteopathy
David Forman
David Forman International Agency For Research On Cancer
Eamonn Martin Quigley
Eamonn Martin Quigley Cornell University
Nimish Vakil
Nimish Vakil University of Wisconsin–Madison
Colin W. Howden
Colin W. Howden University of Tennessee Health Science Center
Richard H. Hunt
Richard H. Hunt McMaster University
Michael G. Surette
Michael G. Surette McMaster University
Stephen M. Collins
Stephen M. Collins McMaster University

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