World's Best Scientists 2026 revealed!
Ashwin N. Ananthakrishnan

Ashwin N. Ananthakrishnan

D-Index & Metrics

Medicine

D-Index
99
Citations
45495
World Ranking
8471
National Ranking
4374

Ashwin N. Ananthakrishnan 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 Ashwin N. Ananthakrishnan 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: 609 publications — 73rd percentile

73% of scientists in this discipline score the same or lower.

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

Ashwin N. Ananthakrishnan 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 Ashwin N. Ananthakrishnan 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: 99 D-Index — 58th percentile

58% of scientists in this discipline score the same or lower.

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

Overview

Ashwin N. Ananthakrishnan is affiliated with Harvard University in the United States and has an extensive publication record primarily in the medical and biological sciences. Their research focuses on inflammatory bowel diseases and related gastrointestinal disorders, with interdisciplinary engagement in genetics, epidemiology, and immunology.

Their recent scholarly contributions include papers such as:

  • Changing Global Epidemiology of Inflammatory Bowel Diseases: Sustaining Health Care Delivery Into the 21st Century (2020), published in Clinical Gastroenterology and Hepatology
  • Dietary Guidance From the International Organization for the Study of Inflammatory Bowel Diseases (2020), Clinical Gastroenterology and Hepatology
  • Depression and anxiety in inflammatory bowel disease: epidemiology, mechanisms and treatment (2022), Nature Reviews Gastroenterology & Hepatology
  • Leveraging polygenic enrichments of gene features to predict genes underlying complex traits and diseases (2023), Nature Genetics
  • The landscape of immune dysregulation in Crohn's disease revealed through single-cell transcriptomic profiling in the ileum and colon (2023), Immunity

Frequent collaborators include:

  • Hamed Khalili (45 joint publications)
  • Kristin E. Burke (40 joint publications)
  • Bharati Kochar (39 joint publications)
  • Ramnik J. Xavier (33 joint publications)
  • Emily W. Lopes (33 joint publications)

Publications by Ashwin N. Ananthakrishnan are often found in key journals such as:

  • Gastroenterology (97 publications)
  • Clinical Gastroenterology and Hepatology (42 publications)
  • Inflammatory Bowel Diseases (27 publications)
  • The American Journal of Gastroenterology (23 publications)
  • Alimentary Pharmacology & Therapeutics (14 publications)

The main fields of study comprising their work are Medicine and Biochemistry, Genetics and Molecular Biology, with notable subfields including:

  • Genetics (197 publications)
  • Epidemiology (156 publications)
  • Surgery (85 publications)
  • Immunology (53 publications)
  • Molecular Biology (34 publications)

The prominent research topics covered include:

  • Inflammatory Bowel Disease (368 publications)
  • Microscopic Colitis (258 publications)
  • Eosinophilic Esophagitis (82 publications)
  • Autoimmune and Inflammatory Disorders (38 publications)
  • Health Systems, Economic Evaluations, Quality of Life (38 publications)
  • Gut microbiota and health (36 publications)
  • Helicobacter pylori-related gastroenterology studies (34 publications)

Best Publications

  • Host-microbe interactions have shaped the genetic architecture of inflammatory bowel disease

    Luke Jostins;Stephan Ripke;Rinse K Weersma;Richard H Duerr

  • Multi-omics of the gut microbial ecosystem in inflammatory bowel diseases.

    Jason Lloyd-Price;Jason Lloyd-Price;Cesar Arze;Ashwin N. Ananthakrishnan;Melanie Schirmer;Melanie Schirmer

  • Guidelines for Diagnosis, Treatment, and Prevention of Clostridium difficile Infections

    Christina M Surawicz;Lawrence J Brandt;David G Binion;Ashwin N Ananthakrishnan

  • Epidemiology and risk factors for IBD

    Ashwin N. Ananthakrishnan

  • ACG Clinical Guideline: Ulcerative Colitis in Adults

    David T Rubin;Ashwin N Ananthakrishnan;Corey A Siegel;Bryan G Sauer

  • Intra- and Inter-cellular Rewiring of the Human Colon during Ulcerative Colitis

    Christopher S. Smillie;Moshe Biton;Jose Ordovas-Montanes;Keri M. Sullivan

  • Environmental triggers in IBD: a review of progress and evidence.

    Ashwin N. Ananthakrishnan;Charles N. Bernstein;Dimitrios Iliopoulos;Andrew Macpherson

  • A novel Ruminococcus gnavus clade enriched in inflammatory bowel disease patients

    Andrew Brantley Hall;Andrew Brantley Hall;Moran Yassour;Moran Yassour;Jenny Sauk;Jenny Sauk;Ashley Garner;Ashley Garner

  • A Prospective Study of Long-term Intake of Dietary Fiber and Risk of Crohn's Disease and Ulcerative Colitis

    Ashwin N. Ananthakrishnan;Hamed Khalili;Gauree G. Konijeti;Leslie M. Higuchi

  • Dynamics of metatranscription in the inflammatory bowel disease gut microbiome

    Melanie Schirmer;Melanie Schirmer;Eric A. Franzosa;Eric A. Franzosa;Jason Lloyd-Price;Jason Lloyd-Price;Lauren J. McIver;Lauren J. McIver

  • Higher Predicted Vitamin D Status Is Associated With Reduced Risk of Crohn's Disease

    Ashwin N. Ananthakrishnan;Hamed Khalili;Leslie M. Higuchi;Ying Bao

  • Long-term intake of dietary fat and risk of ulcerative colitis and Crohn's disease

    Ashwin N Ananthakrishnan;Hamed Khalili;Gauree G Konijeti;Leslie M Higuchi

  • Excess hospitalisation burden associated with Clostridium difficile in patients with inflammatory bowel disease

    Ashwin N Ananthakrishnan;Emily L McGinley;David G Binion

  • Clostridium difficile infection: epidemiology, risk factors and management.

    Ashwin N. Ananthakrishnan

  • Vitamin D Deficiency in Patients With Inflammatory Bowel Disease: Association With Disease Activity and Quality of Life

    Alex Ulitsky;Ashwin N. Ananthakrishnan;Amar Naik;Sue Skaros

  • Gut Microbiome Function Predicts Response to Anti-integrin Biologic Therapy in Inflammatory Bowel Diseases

    Ashwin N. Ananthakrishnan;Chengwei Luo;Vijay Yajnik;Hamed Khalili

  • Clostridium difficile and inflammatory bowel disease

    Mazen Issa;Ashwin N. Ananthakrishnan;David G. Binion

  • Aspirin, nonsteroidal anti-inflammatory drug use, and risk for Crohn disease and ulcerative colitis: a cohort study.

    Ashwin N. Ananthakrishnan;Leslie M. Higuchi;Edward S. Huang;Hamed Khalili

  • Systematic review with meta-analysis: comparative efficacy of biologics for induction and maintenance of mucosal healing in Crohn's disease and ulcerative colitis controlled trials.

    Aurada Cholapranee;Glen S Hazlewood;Gilaad G. Kaplan;Laurent Peyrin-Biroulet

  • Geographical variation and incidence of inflammatory bowel disease among US women

    Hamed Khalili;Edward S Huang;Ashwin N Ananthakrishnan;Leslie Higuchi

Frequent Co-Authors

Andrew T. Chan
Andrew T. Chan Harvard University
Ramnik J. Xavier
Ramnik J. Xavier Broad Institute
Isaac S. Kohane
Isaac S. Kohane Harvard University
Elizabeth W. Karlson
Elizabeth W. Karlson Brigham and Women's Hospital
Robert M. Plenge
Robert M. Plenge Bristol Myers Squibb
Guergana Savova
Guergana Savova Harvard University
Robert S. Sandler
Robert S. Sandler University of North Carolina at Chapel Hill
Mingyang Song
Mingyang Song Harvard University

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

If you’re considering a future in medicine, several best online schools for high school students offer specialized programs to help you get started early. Exploring online education provides flexibility and can make higher learning more accessible and affordable.

Many students choose affordable, focused pathways such as earning a medical coding certification online, opening doors to behind-the-scenes healthcare roles. Others may opt for hands-on patient care through programs like affordable online fnp programs or nursing tracks.

With the growing demand for healthcare professionals, enrolling in affordable nursing programs can be a practical way to launch a rewarding career. These options let you earn recognized credentials while managing other life commitments, making education in healthcare fields more accessible than ever before.

Best Scientists Citing Ashwin N. Ananthakrishnan

Trending Scientists

Recently Published Articles