World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
90
Citations
43720
World Ranking
11990
National Ranking
6148

A. Thomas McLellan 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 A. Thomas McLellan 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: 274 publications — 12th percentile

12% of scientists in this discipline score the same or lower.

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

A. Thomas McLellan 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 A. Thomas McLellan 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: 90 D-Index — 41st percentile

41% of scientists in this discipline score the same or lower.

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

Overview

A. Thomas McLellan is affiliated with the Treatment Research Institute in the United States. Their research portfolio spans key areas in medicine and psychology, focusing particularly on digital mental health interventions, treatment of major depression, and substance abuse treatment and outcomes.

Their recent publications cover a range of topics primarily related to addiction, mental health, and patient involvement in health services. Notable papers include:

  • Patient and public involvement in health services: Paying more than lip service, 2024, Developmental Medicine & Child Neurology
  • Can Smartphone-Based Support Apps Add Value to the Treatment of Opioid Use Disorder?, 2024, American Journal of Psychiatry
  • Demonstration of an app-delivered digital therapeutic program for methamphetamine use disorder, 2023, Frontiers in Psychiatry
  • The Concept of Treatment-Refractory Addiction: Implications for Addiction Treatment Systems and Research, 2024, Journal of Addiction Medicine

Their scholarly work is frequently published in journals such as the Journal of Addiction Medicine, Frontiers in Psychiatry, Developmental Medicine & Child Neurology, and the American Journal of Psychiatry.

In addition to their primary focus on medicine and psychology, they engage in subfields including applied psychology, pharmacology, experimental and cognitive psychology, psychiatry and mental health, and epidemiology.

The scientist has collaborated with several frequent co-authors, including Edward V. Nunes, Kristin Muhlner, Jeff DeFlavio, Alfonso Ang, and Michael Zito.

Their research themes include:

  • Digital Mental Health Interventions
  • Treatment of Major Depression
  • Mental Health Research Topics
  • Schizophrenia Research and Treatment
  • Substance Abuse Treatment and Outcomes
  • Opioid Use Disorder Treatment
  • Mental Health and Patient Involvement

Best Publications

  • An improved diagnostic evaluation instrument for substance abuse patients. The Addiction Severity Index.

    A T McLellan;L Luborsky;G E Woody;C P O'Brien

  • Drug Dependence, a Chronic Medical Illness: Implications for Treatment, Insurance, and Outcomes Evaluation

    A. Thomas McLellan;David C. Lewis;Herbert D. Kleber

  • Neurobiologic Advances from the Brain Disease Model of Addiction

    Nora D. Volkow;George F. Koob;A. Thomas McLellan

  • Opioid Abuse in Chronic Pain — Misconceptions and Mitigation Strategies

    Nora D. Volkow;A. Thomas McLellan

  • Predicting Response to Alcohol and Drug Abuse Treatments: Role of Psychiatric Severity

    A T McLellan;L Luborsky;G E Woody;C P O'Brien

  • Meta‐Analysis of Therapist Effects in Psychotherapy Outcome Studies

    Paul Crits-Christoph;Kathryn Baranackie;Julie S. Kurcias;Aaron T. Beck

  • Myths about the treatment of addiction

    CharlesP. O'Brien;A. Thomas McLellan

  • Classical conditioning in drug-dependent humans.

    Charles P. O'brien;Anna Rose Childress;A. Thomas McLELLAN;Ronald Ehrman

  • Can the national addiction treatment infrastructure support the public's demand for quality care?

    A Thomas McLellan;Deni Carise;Herbert D Kleber

  • Five year outcomes in a cohort study of physicians treated for substance use disorders in the United States

    A Thomas McLellan;Gregory S Skipper;Michael Campbell;Robert L DuPont

  • Self-help organizations for alcohol and drug problems: Toward evidence-based practice and policy

    Keith Humphreys;Stephen Wing;Dennis McCarty;John Chappel

  • Abstinent Opiate Abusers Exhibit Conditioned Craving, Conditioned Withdrawal and Reductions in both through Extinction

    Anna Rose Childress;A. Thomas McLELLAN;Charles P. O'brien

  • Increased effectiveness of substance abuse treatment. A prospective study of patient-treatment "matching".

    A. McLELLAN;George Woody;Lester Luborsky;Charles O'brien

  • The Psychotherapist Matters: Comparison of Outcomes Across Twenty-Two Therapists and Seven Patient Samples

    Lester Luborsky;A. Thomas McLellan;Louis Diguer;George Woody

  • Naltrexone pharmacotherapy for opioid dependent federal probationers

    James W. Cornish;James W. Cornish;David Metzger;David Metzger;George E. Woody;George E. Woody;David Wilson

  • Is Treatment for Substance Abuse Effective

    A. Thomas McLellan;Lester Luborsky;Charles P. O'Brien;George E. Woody

  • Use and Misuse of Opioids in Chronic Pain

    Nora Volkow;Helene Benveniste;A Thomas McLellan

  • Can induced moods trigger drug-related responses in opiate abuse patients? ☆

    Anna Rose Childress;Ronald Ehrman;A.Thomas McLellan;James MacRae

  • Psychotherapy in community methadone programs: a validation study.

    G E Woody;A T McLellan;L Luborsky;C P O'Brien

  • How are addicted physicians treated? A national survey of physician health programs

    Robert L. DuPont;A. Thomas McLellan;Gary Carr;Michael Gendel

Frequent Co-Authors

Nora D. Volkow
Nora D. Volkow National Institutes of Health
Richard E. Brown
Richard E. Brown Dalhousie University
David J. Nutt
David J. Nutt Imperial College London
Michael T. French
Michael T. French University of Miami
Thomas F. Babor
Thomas F. Babor University of Connecticut
Amelia M. Arria
Amelia M. Arria University of Maryland, College Park
John Strang
John Strang King's College London
George F. Koob
George F. Koob National Institute on Drug Abuse
Constance Weisner
Constance Weisner Kaiser Permanente

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