World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

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

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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