World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
92
Citations
28366
World Ranking
11396
National Ranking
5841

Daniel T. O'Connor 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 Daniel T. O'Connor 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: 530 publications — 63rd percentile

63% of scientists in this discipline score the same or lower.

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

Daniel T. O'Connor 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 Daniel T. O'Connor 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: 92 D-Index — 45th percentile

45% of scientists in this discipline score the same or lower.

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

Overview

Daniel T. O'Connor is affiliated with the University of California, San Diego in the United States. Their research spans multiple fields with a strong focus on Medicine and Biochemistry, Genetics and Molecular Biology. The subfields they have contributed to include Molecular Biology, Surgery, Cardiology and Cardiovascular Medicine, Public Health, Environmental and Occupational Health, and Genetics.

The main topics of their work cover areas such as Opioid Use Disorder Treatment, Anesthesia and Pain Management, Genetic Associations and Epidemiology, Cardiomyopathy and Myosin Studies, Cardiovascular Function and Risk Factors, Pluripotent Stem Cells Research, and CRISPR and Genetic Engineering.

Several frequent coauthors have collaborated with them, including Matteo D'Antonio, Jennifer Nguyen, Timothy D. Arthur, Kelly A. Frazer, and Hiroko Matsui.

O'Connor has published extensively in venues such as Nature Communications, UNC Libraries, JAAOS Global Research and Reviews, Cells, and Digital Commons@Becker (Washington University School of Medicine).

Recent papers authored or co-authored by Daniel T. O'Connor highlight their involvement in cutting-edge research:

  • Fine mapping spatiotemporal mechanisms of genetic variants underlying cardiac traits and disease, 2023, Nature Communications
  • Complex regulatory networks influence pluripotent cell state transitions in human iPSCs, 2024, Nature Communications
  • eQTL mapping in fetal-like pancreatic progenitor cells reveals early developmental insights into diabetes risk, 2023, Nature Communications
  • Natural History of Opioid Use in Naive and Tolerant Patients in Revision Total Hip Arthroplasty, 2024, JAAOS Global Research and Reviews
  • Wnt/PKC Signaling Inhibits Sensory Hair Cell Formation in the Developing Mammalian Cochlea, 2025, Cells

Best Publications

  • Effect of ramipril vs amlodipine on renal outcomes in hypertensive nephrosclerosis: a randomized controlled trial.

    L. Y. Agodoa;L. Appel;G. L. Bakris;G. Beck

  • The Chromogranin–Secretogranin Family

    Laurent Taupenot;Kimberly L. Harper;Daniel T. O'Connor

  • Secretion of chromogranin A by peptide-producing endocrine neoplasms.

    Daniel T. O'Connor;Leonard J. Deftos

  • Novel autocrine feedback control of catecholamine release. A discrete chromogranin a fragment is a noncompetitive nicotinic cholinergic antagonist.

    S. K. Mahata;D. T. O'connor;M. Mahata;Seung Hyun Yoo

  • Plasma hydrogen peroxide production in hypertensives and normotensive subjects at genetic risk of hypertension.

    Fred Lacy;Daniel O'Connor;Geert Schmid-Schönbein

  • Genetic influences on endometriosis in an Australian twin sample

    Susan A Treloar;Daniel T O’Connor;Vivienne M O’Connor;Nicholas G Martin

  • Assessment of Plasma C-Reactive Protein as a Biomarker of Posttraumatic Stress Disorder Risk

    Satish A. Eraly;Satish A. Eraly;Caroline M. Nievergelt;Caroline M. Nievergelt;Adam X. Maihofer;Donald A. Barkauskas

  • Hypertension from targeted ablation of chromogranin A can be rescued by the human ortholog

    Nitish R. Mahapatra;Daniel T. O’Connor;Sucheta M. Vaingankar;Amiya P. Sinha Hikim

  • Plasma Hydrogen Peroxide Production in Human Essential Hypertension Role of Heredity, Gender, and Ethnicity

    Fred Lacy;Mala T. Kailasam;Daniel T. O’Connor;Geert W. Schmid-Schönbein

  • Whole-Genome Analysis of Sporadic Amyotrophic Lateral Sclerosis

    Travis Dunckley;Matthew J. Huentelman;David W. Craig;John V. Pearson

  • Genomewide Linkage Study in 1,176 Affected Sister Pair Families Identifies a Significant Susceptibility Locus for Endometriosis on Chromosome 10q26

    Susan A. Treloar;Susan A. Treloar;Jacqueline Wicks;Jacqueline Wicks;Dale R. Nyholt;Dale R. Nyholt;Grant W. Montgomery;Grant W. Montgomery

  • Chromogranin A: Immunohistology reveals its universal occurrence in normal polypeptide hormone producing endocrine glands

    Daniel T. O'Connor;Daniel T. O'Connor;Douglas Burton;Douglas Burton;Leonard J. Deftos;Leonard J. Deftos

  • Radioimmunoassay of Chromogranin a in Plasma as a Measure of Exocytotic Sympathoadrenal Activity in Normal Subjects and Patients with Pheochromocytoma

    Daniel T. O'Connor;Keevin N. Bernstein

  • Comparison of cross-sectional renal function measurements in African Americans with hypertensive nephrosclerosis and of primary formulas to estimate glomerular filtration rate ☆ ☆☆ ★ ★★

    Julia Lewis;Lawrence Agodoa;DeAnna Cheek;Tom Greene

  • Early decline in the catecholamine release-inhibitory peptide catestatin in humans at genetic risk of hypertension.

    Daniel T O'Connor;Mala T Kailasam;Brian P Kennedy;Michael G Ziegler

  • Chromogranin: widespread immunoreactivity in polypeptide hormone producing tissues and in serum.

    Daniel T. O'Connor;Daniel T. O'Connor

  • Chromogranin A, the major catecholamine storage vesicle soluble protein. Multiple size forms, subcellular storage, and regional distribution in chromaffin and nervous tissue elucidated by radioimmunoassay.

    D T O'Connor;R P Frigon

  • Chromogranin A in uremia: progressive retention of immunoreactive fragments.

    Ray J. Hsiao;Matthew S. Mezger;Daniel T. O'Connor

  • Laminar, tangential and regional organization of the noradrenergic innervation of monkey cortex: Dopamine-β-hydroxylase immunohistochemistry

    John H. Morrison;Stephen L. Foote;Daniel O'Connor;Floyd E. Bloom

  • IMMUNOREACTIVE HUMAN CHROMOGRANIN A IN DIVERSE POLYPEPTIDE HORMONE PRODUCING HUMAN TUMORS AND NORMAL ENDOCRINE TISSUES

    Daniel T. O’Connor;Douglas Burton;Leonard J. Deftos

Frequent Co-Authors

Sushil K. Mahata
Sushil K. Mahata University of California, San Diego
Michael G. Ziegler
Michael G. Ziegler University of California, San Diego
Nicholas J. Schork
Nicholas J. Schork Translational Genomics Research Institute
Caroline M. Nievergelt
Caroline M. Nievergelt University of California, San Diego
Rebecca E. Lee
Rebecca E. Lee Arizona State University
Andrew J. Pollard
Andrew J. Pollard University of Oxford
Dewleen G. Baker
Dewleen G. Baker University of California, San Diego
Anatoly V. Zayats
Anatoly V. Zayats King's College London
Richard J. Simpson
Richard J. Simpson La Trobe University
Gregory A. Wurtz
Gregory A. Wurtz King's College London

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Related Online Degrees & Career Pathways

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For those interested in the administrative side of medicine, becoming a certified medical coder or biller is also a worthwhile option. There are several accredited medical billing and coding schools with financial aid available online, making this a flexible and accessible career pathway.

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