World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
94
Citations
35645
World Ranking
10407
National Ranking
5358

Mark A. Riddle 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 Mark A. Riddle 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: 273 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.

Mark A. Riddle 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 Mark A. Riddle 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: 94 D-Index — 49th percentile

49% of scientists in this discipline score the same or lower.

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

Overview

Mark A. Riddle is affiliated with the Johns Hopkins University School of Medicine in the United States. Their research primarily spans the field of Psychology with a focus on Clinical Psychology, Cognitive Neuroscience, Developmental and Educational Psychology, General Health Professions, and Psychiatry and Mental health.

The scientist's work addresses several main topics, including:

  • Child and Adolescent Psychosocial and Emotional Development
  • Obsessive-Compulsive Spectrum Disorders
  • Autism Spectrum Disorder Research
  • Child and Adolescent Health
  • Adolescent and Pediatric Healthcare
  • Diet and metabolism studies
  • Cognitive and developmental aspects of mathematical skills

Mark A. Riddle has contributed to multiple recent publications. Selected papers include:

  • Metformin add-on vs. antipsychotic switch vs. continued antipsychotic treatment plus healthy lifestyle education in overweight or obese youth with severe mental illness: results from the IMPACT trial (2020), published in World Psychiatry
  • Exome sequencing in obsessive-compulsive disorder reveals a burden of rare damaging coding variants (2021), published in Nature Neuroscience
  • Genome-wide association study of pediatric obsessive-compulsive traits: shared genetic risk between traits and disorder (2021), published in Translational Psychiatry
  • Is Persistent Motor or Vocal Tic Disorder a Milder Form of Tourette Syndrome? (2021), published in Movement Disorders
  • Genome-wide association study identifies new locus associated with OCD (2021), published in bioRxiv (Cold Spring Harbor Laboratory)

Their frequent co-authors include O. Joseph Bienvenu, Janice Krasnow, Fernando S. Goes, Gerald Nestadt, and Jack Samuels. Mark A. Riddle commonly publishes in the Journal of the American Academy of Child & Adolescent Psychiatry, Psychiatric Services, World Psychiatry, Nature Neuroscience, and Translational Psychiatry.

Mark A. Riddle has also contributed to book publications, notably the title Pediatric Psychopharmacology for Primary Care (2021), published by the American Academy of PediatricsItasca, IL eBooks.

Best Publications

  • The Yale Global Tic Severity Scale: Initial Testing of a Clinician-Rated Scale of Tic Severity

    James F. Leckman;Mark A. Riddle;Maureen T. Hardin;Sharon I. Ort

  • Children's Yale-Brown Obsessive Compulsive Scale: Reliability and Validity

    Lawrence Scahill;Mark A. Riddle;Maureen McSWIGGIN-HARDIN;Sharon I. Ort

  • Analysis of shared heritability in common disorders of the brain

    Verneri Anttila;Verneri Anttila;Brendan Bulik-Sullivan;Brendan Bulik-Sullivan;Hilary K. Finucane;Raymond K. Walters;Raymond K. Walters

  • A family study of obsessive-compulsive disorder.

    Gerald Nestadt;Jack Samuels;Mark Riddle;O. Joseph Bienvenu

  • The relationship of obsessive–compulsive disorder to possible spectrum disorders: results from a family study

    O. Joseph Bienvenu;Jack F. Samuels;Mark A. Riddle;Rudolf Hoehn-Saric

  • Psychotropic practice patterns for youth: a 10-year perspective.

    Julie Magno Zito;Daniel J. Safer;Susan dosReis;James F. Gardner

  • Efficacy and Safety of Immediate-Release Methylphenidate Treatment for Preschoolers with ADHD.

    Laurence Greenhill;Scott Kollins;Howard Abikoff;James Mccracken

  • Revealing the complex genetic architecture of obsessive-compulsive disorder using meta-analysis

    Paul D. Arnold;Kathleen D. Askland;Cristina Barlassina;Laura Bellodi

  • Fluvoxamine for the Treatment of Anxiety Disorders in Children and Adolescents

    John T. Walkup;Michael J. Labellarte;Mark A. Riddle;Daniel S. Pine;Daniel S. Pine

  • Prevalence and correlates of hoarding behavior in a community-based sample.

    Jack F. Samuels;O. Joseph Bienvenu;Marco A. Grados;Bernadette Cullen

  • Reduced basal ganglia volumes in Tourette's syndrome using three-dimensional reconstruction techniques from magnetic resonance images

    B. Peterson;M. A. Riddle;D. J. Cohen;L. D. Katz

  • The Pediatric Anxiety Rating Scale (PARS): Development and Psychometric Properties

    Ma Riddle;Gs Ginsburg;Jt Walkup;Mj Labellarte

  • Fluvoxamine for children and adolescents with obsessive-compulsive disorder: a randomized, controlled, multicenter trial.

    Mark A. Riddle;Elizabeth A. Reeve;Jose A. Yaryura-Tobias;Hwa Ming Yang

  • Clonidine treatment of Gilles de la Tourette's syndrome

    James F. Leckman;Maureen T. Hardin;Mark A. Riddle;John Stevenson

  • Hoarding in obsessive compulsive disorder: Results from a case-control study

    J. Samuels;O. Joseph Bienvenu;M.A. Riddle;B.A.M. Cullen

  • Treatment of ADHD in children with tics: A randomized controlled trial

    Roger Kurlan;Christopher G. Goetz;Michael P. McDermott;Sandra Plumb

  • Double-blind, crossover trial of fluoxetine and placebo in children and adolescents with obsessive-compulsive disorder.

    Mark A. Riddle;Lawrence Scahill;Robert A. King;Maureen T. Hardin

  • Genome-wide association study of obsessive-compulsive disorder.

    S. E. Stewart;D. Yu;J. M. Scharf;B. M. Neale

  • Obsessive compulsive disorder in children and adolescents: phenomenology and family history.

    Mark A. Riddle;Lawrence Scahill;Robert King;Maureen T. Hardin

  • Beyond the serotonin hypothesis: A role for dopamine in some forms of obsessive compulsive disorder?

    Wayne K. Goodman;Christopher J. McDougle;Lawrence H. Price;Mark A. Riddle

Frequent Co-Authors

James T. McCracken
James T. McCracken University of California, Los Angeles
Gerald Nestadt
Gerald Nestadt Johns Hopkins University School of Medicine
James F. Leckman
James F. Leckman Yale University
David L. Pauls
David L. Pauls Harvard University
Donald J. Cohen
Donald J. Cohen Yale University
John Piacentini
John Piacentini University of California, Los Angeles
Benjamin D. Greenberg
Benjamin D. Greenberg Brown University
Yin Yao Shugart
Yin Yao Shugart National Institutes of Health
Abby J. Fyer
Abby J. Fyer Columbia University
John T. Walkup
John T. Walkup Lurie Children's Hospital

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