World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
82
Citations
27216
World Ranking
16020
National Ranking
8061

G. Caleb Alexander 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 G. Caleb Alexander 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: 404 publications — 39th percentile

39% of scientists in this discipline score the same or lower.

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

G. Caleb Alexander 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 G. Caleb Alexander 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: 82 D-Index — 21st percentile

21% of scientists in this discipline score the same or lower.

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

Overview

G. Caleb Alexander is affiliated with Johns Hopkins University in the United States and has an extensive research record primarily in the field of medicine. Their scholarly output includes a strong focus on public health and pharmacology, particularly related to opioid use disorder, health systems, pharmaceutical practices, and the effects of COVID-19. Their work encompasses various subfields such as economics and econometrics, infectious diseases, cardiology, and geriatrics.

The scientist has published numerous papers in high-impact journals. Significant recent papers include:

  • Use and Content of Primary Care Office-Based vs Telemedicine Care Visits During the COVID-19 Pandemic in the US (2020, JAMA Network Open)
  • An Epidemic in the Midst of a Pandemic: Opioid Use Disorder and COVID-19 (2020, Annals of Internal Medicine)
  • Evaluation of Aducanumab for Alzheimer Disease (2021, JAMA)
  • Association Between Renin-Angiotensin System Blockade Discontinuation and All-Cause Mortality Among Persons With Low Estimated Glomerular Filtration Rate (2020, JAMA Internal Medicine)
  • The Evolving Overdose Epidemic: Synthetic Opioids and Rising Stimulant-Related Harms (2020, Epidemiologic Reviews)

Frequent co-authors collaborating with G. Caleb Alexander include:

  • Hemalkumar B. Mehta
  • Dima M. Qato
  • Kathleen M. Andersen
  • Jodi B Segal
  • James Heyward

The scientist regularly publishes in several prominent venues, with multiple contributions to journals such as:

  • JAMA Network Open
  • Annals of Internal Medicine
  • JAMA
  • bioRxiv (Cold Spring Harbor Laboratory)
  • Health Affairs

Their research spans important topics including:

  • Opioid Use Disorder Treatment
  • Health Systems, Economic Evaluations, Quality of Life
  • Pharmaceutical Practices and Patient Outcomes
  • COVID-19 Clinical Research Studies
  • Pharmaceutical Economics and Policy
  • Medication Adherence and Compliance
  • Long-Term Effects of COVID-19

In total, the scientist has contributed 327 publications within the broad field of medicine, emphasizing the intersection of clinical research, health economics, and public health policy. Their work integrates epidemiological methods with health systems analysis, addressing key issues such as medication adherence and the impacts of opioid-related disorders.

Best Publications

  • The Prescription Opioid and Heroin Crisis: A Public Health Approach to an Epidemic of Addiction

    Andrew Kolodny;David T. Courtwright;Catherine S. Hwang;Peter Kreiner

  • Use of Prescription and Over-the-counter Medications and Dietary Supplements Among Older Adults in the United States

    Dima M. Qato;G. Caleb Alexander;G. Caleb Alexander;Rena M. Conti;Michael Johnson

  • Prescription Opioid Analgesics Commonly Unused After Surgery: A Systematic Review.

    Mark C. Bicket;Jane J. Long;Peter J. Pronovost;Peter J. Pronovost;G. Caleb Alexander

  • Changes in Prescription and Over-the-Counter Medication and Dietary Supplement Use Among Older Adults in the United States, 2005 vs 2011

    Dima M. Qato;Jocelyn Wilder;L. Philip Schumm;Victoria Gillet

  • National trends in ambulatory oral anticoagulant use

    Geoffrey D. Barnes;Eleanor Lucas;G. Caleb Alexander;Zachary D. Goldberger

  • Barriers to cadaveric renal transplantation among blacks, women, and the poor.

    G. Caleb Alexander;Ashwini R. Sehgal;Ashwini R. Sehgal

  • Reconsidering Medication Appropriateness for Patients Late in Life

    Holly M. Holmes;Déon Cox Hayley;G. Caleb Alexander;Greg A. Sachs

  • Effect of Adherence to Oral Anticoagulants on Risk of Stroke and Major Bleeding Among Patients With Atrial Fibrillation

    Xiaoxi Yao;Neena S. Abraham;G. Caleb Alexander;William Crown

  • Patient-physician communication about out-of-pocket costs.

    G. Caleb Alexander;Lawrence P. Casalino;David O. Meltzer

  • Use and Content of Primary Care Office-Based vs Telemedicine Care Visits During the COVID-19 Pandemic in the US

    G. Caleb Alexander;Matthew Tajanlangit;James Heyward;Omar Mansour

  • Comparative risk of gastrointestinal bleeding with dabigatran, rivaroxaban, and warfarin: population based cohort study

    Neena S Abraham;Sonal Singh;G Caleb Alexander;Herbert Heien

  • Ambulatory diagnosis and treatment of nonmalignant pain in the united states, 2000-2010

    Matthew Daubresse;Hsien Yen Chang;Yuping Yu;Shilpa Viswanathan

  • Outpatient hypertension treatment, treatment intensification, and control in Western Europe and the United States.

    Y. Richard Wang;G. Caleb Alexander;G. Caleb Alexander;Randall S. Stafford

  • National Trends in Oral Anticoagulant Use in the United States, 2007 to 2011

    Kate Kirley;Dima M. Qato;Rachel Kornfield;Randall S. Stafford

  • Estimated Costs of Pivotal Trials for Novel Therapeutic Agents Approved by the US Food and Drug Administration, 2015-2016

    Thomas J. Moore;Hanzhe Zhang;Gerard Anderson;G. Caleb Alexander

  • An Epidemic in the Midst of a Pandemic: Opioid Use Disorder and COVID-19.

    G. Caleb Alexander;Kenneth B. Stoller;Rebecca Lee Haffajee;Brendan Saloner

  • Knowledge and Early Adoption of the HPV Vaccine Among Girls and Young Women: Results of a National Survey

    Rachel Caskey;Stacy Tessler Lindau;Stacy Tessler Lindau;G. Caleb Alexander

  • Effect of Florida’s Prescription Drug Monitoring Program and Pill Mill Laws on Opioid Prescribing and Use

    Lainie Rutkow;Hsien Yen Chang;Matthew Daubresse;Daniel W. Webster

  • National trends in treatment of type 2 diabetes mellitus, 1994-2007.

    G. Caleb Alexander;Niraj L. Sehgal;Rachael M. Moloney;Randall S. Stafford

  • Impact of FDA Black Box Advisory on Antipsychotic Medication Use

    E. Ray Dorsey;Atonu Rabbani;Sarah A. Gallagher;Rena M. Conti

Frequent Co-Authors

Jodi B. Segal
Jodi B. Segal Johns Hopkins University
Matthew K. Wynia
Matthew K. Wynia University of Colorado Denver
Randall S. Stafford
Randall S. Stafford Stanford University
Morgan E. Grams
Morgan E. Grams Johns Hopkins University
Josef Coresh
Josef Coresh New York University
David O. Meltzer
David O. Meltzer University of Chicago
Lesley A. Inker
Lesley A. Inker Tufts Medical Center
Ramin Mojtabai
Ramin Mojtabai Johns Hopkins University
Stacie B. Dusetzina
Stacie B. Dusetzina Vanderbilt University
Haiden A. Huskamp
Haiden A. Huskamp Harvard University

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