World's Best Scientists 2026 revealed!
Henry P. Parkman

Henry P. Parkman

D-Index & Metrics

Medicine

D-Index
95
Citations
37160
World Ranking
9983
National Ranking
5138

Henry P. Parkman 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 Henry P. Parkman 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: 810 publications — 88th percentile

88% of scientists in this discipline score the same or lower.

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

Henry P. Parkman 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 Henry P. Parkman 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: 95 D-Index — 51st percentile

51% of scientists in this discipline score the same or lower.

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

Overview

Henry P. Parkman is affiliated with Temple University in the United States and has a robust body of research primarily within the field of Medicine. Their work focuses extensively on gastroenterology, with significant contributions to understanding gastrointestinal motility and disorders.

Their research covers multiple subfields including gastroenterology, surgery, physiology, complementary and alternative medicine, and pulmonary and respiratory medicine. The main topics addressed across their publications include:

  • Gastrointestinal motility and disorders
  • Gastroesophageal reflux and treatments
  • Helicobacter pylori-related gastroenterology studies
  • Esophageal and GI pathology
  • Diet and metabolism studies
  • Acupuncture treatment research studies
  • Complementary and alternative medicine studies

Parkman has published in numerous scientific journals, with frequent contributions to the following venues:

  • Gastroenterology
  • The American Journal of Gastroenterology
  • Neurogastroenterology & Motility
  • Clinical Gastroenterology and Hepatology
  • Digestive Diseases and Sciences

Notable recent papers include:

  • "Functional Dyspepsia and Gastroparesis in Tertiary Care are Interchangeable Syndromes With Common Clinical and Pathologic Features" (2021, Gastroenterology)
  • "Avoidant/restrictive food intake disorder symptoms are frequent in patients presenting for symptoms of gastroparesis" (2020, Neurogastroenterology & Motility)
  • "Autonomic function in gastroparesis and chronic unexplained nausea and vomiting: Relationship with etiology, gastric emptying, and symptom severity" (2020, Neurogastroenterology & Motility)
  • "Efficacy and Safety of Tradipitant in Patients With Diabetic and Idiopathic Gastroparesis in a Randomized, Placebo-Controlled Trial" (2020, Gastroenterology)
  • "Principles and clinical methods of body surface gastric mapping: Technical review" (2023, Neurogastroenterology & Motility)

Their research collaborations include frequent coauthors such as Zubair Malik, Richard W. McCallum, Braden Kuo, Thomas L. Abell, and Irene Sarosiek, with whom they have collectively published numerous papers.

Best Publications

  • Prevention and management of gastroesophageal varices and variceal hemorrhage in cirrhosis.

    Guadalupe Garcia-Tsao;Arun J. Sanyal;Norman D. Grace;William D. Carey

  • Practice guidelines in acute pancreatitis.

    Peter A. Banks;Martin L. Freeman;Ronnie Fass;Darren S. Baroni

  • Consensus recommendations for gastric emptying scintigraphy: a joint report of the American Neurogastroenterology and Motility Society and the Society of Nuclear Medicine.

    Thomas L. Abell;Michael Camilleri;Kevin Donohoe;William L. Hasler

  • Clinical Guideline: Management of Gastroparesis

    Michael Camilleri;Henry P. Parkman;Mehnaz A. Shafi;Thomas L. Abell

  • American Gastroenterological Association technical review on the diagnosis and treatment of gastroparesis

    Henry P. Parkman;William L. Hasler;Robert S. Fisher

  • Development and Validation of the Rome IV Diagnostic Questionnaire for Adults

    Olafur S. Palsson;William E. Whitehead;Miranda A.L. Van Tilburg;Lin Chang

  • ACG practice guidelines: esophageal reflux testing

    Ikuo Hirano;Joel E. Richter;Ronnie Fass;Darren S. Baroni

  • Treatment of gastroparesis: a multidisciplinary clinical review

    T. L. Abell;R. K. Bernstein;T. Cutts;G. Farrugia

  • Cellular changes in diabetic and idiopathic gastroparesis.

    Madhusudan Grover;Gianrico Farrugia;Matthew S. Lurken;Cheryl E. Bernard

  • Measurement of gastrointestinal motility in the GI laboratory

    Michael Camilleri;William L. Hasler;Henry P. Parkman;Eamonn M.M. Quigley

  • Electrogastrography: a document prepared by the gastric section of the American Motility Society Clinical GI Motility Testing Task Force.

    Henry P. Parkman;W. L. Hasler;J. L. Barnett;E. Y. Eaker

  • Evaluation of gastrointestinal transit in clinical practice: position paper of the American and European Neurogastroenterology and Motility Societies.

    S. S. C. Rao;M. Camilleri;W. L. Hasler;A. H. Maurer

  • Gastric emptying of a non-digestible solid: assessment with simultaneous SmartPill pH and pressure capsule, antroduodenal manometry, gastric emptying scintigraphy.

    D. Cassilly;S. Kantor;L. C. Knight;A. H. Maurer

  • Investigation of Colonic and Whole-Gut Transit With Wireless Motility Capsule and Radiopaque Markers in Constipation

    Satish S.C. Rao;Braden Kuo;Richard W. McCallum;William D. Chey

  • Comparison of gastric emptying of a nondigestible capsule to a radio-labelled meal in healthy and gastroparetic subjects.

    B. Kuo;R. W. McCALLUM;K. L. Koch;M. D. Sitrin

  • Gastroparesis-Related Hospitalizations in the United States: Trends, Characteristics, and Outcomes, 1995–2004

    Yize R Wang;Robert S Fisher;Henry P Parkman

  • Botulinum toxin A for the treatment of delayed gastric emptying.

    Frank K Friedenberg;Amiya Palit;Henry P Parkman;Alexandra Hanlon

  • Clinical features of idiopathic gastroparesis vary with sex, body mass, symptom onset, delay in gastric emptying, and gastroparesis severity

    Henry P. Parkman;Katherine Yates;William L. Hasler;Linda Nguyen

  • Wireless Capsule Motility: Comparison of the SmartPill ® GI Monitoring System with Scintigraphy for Measuring Whole Gut Transit

    Sabba Maqbool;Henry P. Parkman;Frank K. Friedenberg

  • Treatment of gastroparesis: a multidisciplinary clinical

    T. L. Abell;R. K. Bernstein;T. Cutts;G. Farrugia

Frequent Co-Authors

Richard W. McCallum
Richard W. McCallum Texas Tech University Health Sciences Center
Pankaj J. Pasricha
Pankaj J. Pasricha Johns Hopkins University
James Tonascia
James Tonascia Johns Hopkins University
Satish S.C. Rao
Satish S.C. Rao Augusta University
William D. Chey
William D. Chey University of Michigan–Ann Arbor
Guenther Boden
Guenther Boden Temple University
Joel E. Richter
Joel E. Richter University of South Florida

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