World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
91
Citations
54414
World Ranking
11503
National Ranking
5896

John T. Farrar 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 John T. Farrar 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: 326 publications — 22nd percentile

22% of scientists in this discipline score the same or lower.

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

John T. Farrar 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 John T. Farrar 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: 91 D-Index — 43rd percentile

43% of scientists in this discipline score the same or lower.

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

Overview

John T. Farrar is affiliated with the University of Pennsylvania in the United States. Their scholarly activity is concentrated primarily within the field of Medicine, with a notable focus on various subfields including Pharmacology, Public Health, Environmental and Occupational Health, Psychiatry and Mental Health, Neurology, and Rheumatology.

The scientist's research addresses several main topics, covering a breadth of issues in pain and related health conditions. These topics include:

  • Musculoskeletal pain and rehabilitation
  • Opioid Use Disorder Treatment
  • Health Systems, Economic Evaluations, Quality of Life
  • Pain Management and Opioid Use
  • Pain Mechanisms and Treatments
  • Pain Management and Placebo Effect
  • Urinary Bladder and Prostate Research

A significant portion of Farrar's publications appear in venues specialized in pain, neurology, and urology topics. The most frequent venues are:

  • Pain
  • Neurology
  • Journal of Pain
  • The Journal of Urology
  • Neurourology and Urodynamics

Among recent published papers, notable examples reflect a focus on pain outcomes and treatment methodologies:

  • Interpretation of chronic pain clinical trial outcomes: IMMPACT recommended considerations, 2020, Pain
  • Nonsteroidal Anti-Inflammatory Drugs and Opioids in Postsurgical Dental Pain, 2020, Journal of Dental Research
  • Optimizing and Accelerating the Development of Precision Pain Treatments for Chronic Pain: IMMPACT Review and Recommendations, 2022, Journal of Pain
  • Ocular Discomfort and Quality of Life Among Patients in the Dry Eye Assessment and Management Study, 2020, Cornea
  • Research approaches for evaluating opioid sparing in clinical trials of acute and chronic pain treatments: Initiative on Methods, Measurement, and Pain Assessment in Clinical Trials recommendations, 2021, Pain

Farrar collaborates frequently with a number of researchers in the field. Their most common coauthors include:

  • Ian Gilron
  • Robert H. Dworkin
  • Jennifer S. Gewandter
  • Dennis C. Turk
  • H. Henry Lai

Best Publications

  • Clinical importance of changes in chronic pain intensity measured on an 11-point numerical pain rating scale

    John T Farrar;James P Young;Linda LaMoreaux;John L Werth

  • Topical Review and RecommendationsCore outcome measures for chronic pain clinical trials: IMMPACT recommendations

    Robert H. Dworkin;Dennis C. Turk;John T. Farrar;Jennifer A. Haythornthwaite

  • Core outcome domains for chronic pain clinical trials: IMMPACT recommendations.

    Dennis C Turk;Robert H Dworkin;Robert R Allen;Nicholas Bellamy

  • Interpreting the Clinical Importance of Treatment Outcomes in Chronic Pain Clinical Trials: IMMPACT Recommendations

    Robert H. Dworkin;Dennis C. Turk;Kathleen W. Wyrwich;Dorcas Beaton

  • Pharmacologic management of neuropathic pain: evidence-based recommendations.

    Robert H. Dworkin;Alec B. O'Connor;Miroslav Backonja;John T. Farrar

  • Advances in Neuropathic Pain: Diagnosis, Mechanisms, and Treatment Recommendations

    Robert H. Dworkin;Miroslav Backonja;Michael C. Rowbotham;Robert R. Allen

  • The Prevention and Treatment of Missing Data in Clinical Trials

    Roderick J. Little;Ralph D'Agostino;Michael L. Cohen;Kay Dickersin

  • The National Institutes of Health chronic prostatitis symptom index: Development and validation of a new outcome measure

    Mark S. Litwin;Mary McNAUGHTON-COLLINS;Floyd J. Fowler;J. Curtis Nickel

  • Defining the clinically important difference in pain outcome measures

    John T. Farrar;Russell K. Portenoy;Jesse A. Berlin;Judith L. Kinman

  • Comparison of Logistic Regression versus Propensity Score When the Number of Events Is Low and There Are Multiple Confounders

    M. Soledad Cepeda;Ray Boston;John T. Farrar;Brian L. Strom

  • Development and initial validation of an expanded and revised version of the Short-form McGill Pain Questionnaire (SF-MPQ-2)

    Robert H. Dworkin;Dennis C. Turk;Dennis A. Revicki;Gale Harding

  • Effects of Testosterone Treatment in Older Men

    P. J. Snyder;S. Bhasin;G. R. Cunningham;A. M. Matsumoto

  • Gout epidemiology: results from the UK General Practice Research Database, 1990-1999.

    Ted R Mikuls;J. T. Farrar;W. B. Bilker;S. Fernandes

  • Interpreting the clinical importance of group differences in chronic pain clinical trials: IMMPACT recommendations

    Robert H. Dworkin;Dennis C. Turk;Michael P. McDermott;Sarah Peirce-Sandner

  • Clinically Important Changes in Acute Pain Outcome Measures: A Validation Study

    John T Farrar;Jesse A Berlin;Brian L Strom

  • Identifying important outcome domains for chronic pain clinical trials: an IMMPACT survey of people with pain.

    Dennis C. Turk;Robert H. Dworkin;Dennis Revicki;Gale Harding

  • Research design considerations for confirmatory chronic pain clinical trials: IMMPACT recommendations.

    Robert H. Dworkin;Dennis C. Turk;Sarah Peirce-Sandner;Ralf Baron

  • Side effects of opioids during short-term administration: Effect of age, gender, and race

    M Soledad Cepeda;John T Farrar;Mona Baumgarten;Ray Boston

  • The dorsal posterior insula subserves a fundamental role in human pain

    Andrew R Segerdahl;Melvin Mezue;Thomas W Okell;John T Farrar

  • Advances in neuropathic pain: Diagnosis, mechanisms, and treatment recommendations. Editorial

    Robert H. Dworkin;Miroslav Backonja;Michael C. Rowbotham;Robert R. Allen

Frequent Co-Authors

Robert H. Dworkin
Robert H. Dworkin University of Rochester Medical Center
Dennis C. Turk
Dennis C. Turk University of Washington
Michael P. McDermott
Michael P. McDermott University of Rochester
Brian L. Strom
Brian L. Strom Rutgers, The State University of New Jersey
Angela DeMichele
Angela DeMichele University of Pennsylvania
Sharon X. Xie
Sharon X. Xie University of Pennsylvania
David Cella
David Cella Northwestern University
Robert D. Kerns
Robert D. Kerns Yale University
Srinivasa N. Raja
Srinivasa N. Raja Johns Hopkins University
Kristine E. Ensrud
Kristine E. Ensrud University of Minnesota

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