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Best Scientists

D-Index
194
Citations
203976
World Ranking
354
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236

Medicine

D-Index
194
Citations
208604
World Ranking
221
National Ranking
148

Ralph A. DeFronzo 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 Ralph A. DeFronzo 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: 610 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: 983 publications — 94th percentile

94% of scientists in this discipline score the same or lower.

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

Ralph A. DeFronzo 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 Ralph A. DeFronzo 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: 399 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: 194 D-Index — 99th percentile

99% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 2025 - Research.com Best Scientists Award
  • 2023 - Research.com Medicine in United States Leader Award
  • Member of the Association of American Physicians
  • Member of the Association of American Physicians
  • Member of the Association of American Physicians
  • Member of the Association of American Physicians

Overview

Ralph A. DeFronzo is affiliated with The University of Texas Health Science Center at San Antonio in the United States. Their research primarily focuses on the field of Medicine, with a significant concentration on Endocrinology, Diabetes, and Metabolism. Their work spans several subfields including Surgery, Molecular Biology, Physiology, and Cardiology and Cardiovascular Medicine.

The scientist's main topics of work cover a variety of areas related to diabetes and metabolism. These include:

  • Diabetes Treatment and Management
  • Pancreatic function and diabetes
  • Metabolism, Diabetes, and Cancer
  • Diabetes Management and Research
  • Diabetes, Cardiovascular Risks, and Lipoproteins
  • Diet and metabolism studies
  • Liver Disease Diagnosis and Treatment

Frequent publication venues highlight where the scientist's research contributions have appeared regularly. These venues include:

  • Diabetes Obesity and Metabolism
  • The Journal of Clinical Endocrinology & Metabolism
  • Diabetes Care
  • Endocrine Practice
  • bioRxiv (Cold Spring Harbor Laboratory)

Collaboration has been a notable feature of their research, with several frequent co-authors. Notable collaborators include:

  • Muhammad Abdul-Ghani
  • Curtis Triplitt
  • John M. Adams
  • Yehuda Handelsman
  • John Blangero

Among recent scholarly papers attributed to this scientist are:

  • Consensus Statement by the American Association of Clinical Endocrinologists and American College of Endocrinology on the Comprehensive Type 2 Diabetes Management Algorithm - 2020 Executive Summary (2020, Endocrine Practice)
  • American Association of Clinical Endocrinology Clinical Practice Guideline: Developing a Diabetes Mellitus Comprehensive Care Plan-2022 Update (2022, Endocrine Practice)
  • Insulin: The master regulator of glucose metabolism (2022, Metabolism)
  • Early intervention and intensive management of patients with diabetes, cardiorenal, and metabolic diseases (2023, Journal of Diabetes and its Complications)
  • Therapeutic Manipulation of Myocardial Metabolism (2021, Journal of the American College of Cardiology)

Ralph A. DeFronzo has also been recognized as a Member of the Association of American Physicians.

Best Publications

  • Report of the expert committee on the diagnosis and classification of diabetes mellitus

    James R. Gavin;K. G M M Alberti;Mayer B. Davidson;Ralph A. DeFronzo

  • Glucose clamp technique: a method for quantifying insulin secretion and resistance.

    Ralph A. Defronzo;Jordan D. Tobin;Reubin Andres

  • Insulin Resistance: A Multifaceted Syndrome Responsible for NIDDM, Obesity, Hypertension, Dyslipidemia, and Atherosclerotic Cardiovascular Disease

    Ralph A. DeFronzo;Eleuterio Ferrannini

  • Insulin sensitivity indices obtained from oral glucose tolerance testing: comparison with the euglycemic insulin clamp.

    Masafumi Matsuda;Ralph A. DeFronzo

  • Insulin Sensitivity Indices Obtained from Oral Glucose Tolerance Test: Comparison with the Euglycemic Insulin Clamp

    Masafumi Matsuda;Ralph A. Defronzo

  • Lilly lecture 1987. The triumvirate: beta-cell, muscle, liver. A collusion responsible for NIDDM.

    Ralph A DeFronzo

  • From the Triumvirate to the Ominous Octet: A New Paradigm for the Treatment of Type 2 Diabetes Mellitus

    Ralph A. DeFronzo

  • Follow-up report on the diagnosis of diabetes mellitus.

    Saul Genuth;K. G M M Alberti;Peter Bennett;John Buse

  • International Expert Committee Report on the Role of the A1C Assay in the Diagnosis of Diabetes

    David M. Nathan;Beverly Balkau;Enzo Bonora;Knut Borch-Johnsen

  • Pathogenesis of NIDDM: A balanced overview

    Ralph A DeFronzo;Riccardd C Bonadonna;Eleuterio Ferrannini

  • Coordinated reduction of genes of oxidative metabolism in humans with insulin resistance and diabetes: Potential role of PGC1 and NRF1

    Mary Elizabeth Patti;Atul J. Butte;Sarah Crunkhorn;Kenneth Cusi

  • The Effect of Insulin on the Disposal of Intravenous Glucose: Results from Indirect Calorimetry and Hepatic and Femoral Venous Catheterization

    R. A. DeFronzo;E. Jacot;E. Jequier;E. Maeder

  • A Placebo-Controlled Trial of Pioglitazone in Subjects with Nonalcoholic Steatohepatitis

    Renata Belfort;Stephen A. Harrison;Kenneth Brown;Celia Darland

  • Effects of Exenatide (Exendin-4) on Glycemic Control and Weight Over 30 Weeks in Metformin-Treated Patients With Type 2 Diabetes

    Ralph A. DeFronzo;Robert E. Ratner;Jenny Han;Dennis D. Kim

  • Skeletal Muscle Insulin Resistance Is the Primary Defect in Type 2 Diabetes

    Ralph A. DeFronzo;Devjit Tripathy

  • Impaired fasting glucose and impaired glucose tolerance: implications for care.

    David M. Nathan;Mayer B. Davidson;Ralph A. DeFronzo;Robert J. Heine

  • Type 2 diabetes mellitus.

    Ralph A. DeFronzo;Ele Ferrannini;Leif Groop;Robert R. Henry

  • Pharmacologic Therapy for Type 2 Diabetes Mellitus

    Ralph A. DeFronzo

  • Efficacy of metformin in patients with non-insulin-dependent diabetes mellitus

    Ralph A. DeFronzo;Anita M. Goodman

  • Pathogenesis of type 2 diabetes mellitus

    Ralph A DeFronzo

Frequent Co-Authors

Amalia Gastaldelli
Amalia Gastaldelli National Research Council (CNR)
Lawrence J. Mandarino
Lawrence J. Mandarino University of Arizona
Leif Groop
Leif Groop Lund University
John Blangero
John Blangero The University of Texas Rio Grande Valley
Ravindranath Duggirala
Ravindranath Duggirala Texas A&M University – San Antonio
Kenneth Cusi
Kenneth Cusi University of Florida
Franco Folli
Franco Folli University of Milan
Philip Felig
Philip Felig Yale University
Jason Flannick
Jason Flannick Broad Institute
John C. Chambers
John C. Chambers Guy's and St Thomas' NHS Foundation Trust

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