World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
104
Citations
38863
World Ranking
7065
National Ranking
3714

Robert A. Zimmerman 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 Robert A. Zimmerman 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: 469 publications — 52nd percentile

52% of scientists in this discipline score the same or lower.

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

Robert A. Zimmerman 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 Robert A. Zimmerman 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: 104 D-Index — 66th percentile

66% of scientists in this discipline score the same or lower.

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

Overview

Robert A. Zimmerman was affiliated with the Children's Hospital of Philadelphia in the United States. Their research spanned several interdisciplinary fields with a focus on statistical methods, astrophysics, and medical imaging.

Their research contributions included work in the following main topics:

  • Bayesian Methods and Mixture Models
  • Stellar, planetary, and galactic studies
  • Statistical Methods and Bayesian Inference
  • Statistical Distribution Estimation and Applications
  • Infectious Diseases and Tuberculosis
  • Advanced Neuroimaging Techniques and Applications
  • RNA regulation and disease

Zimmerman's research output covered multiple subfields of study including:

  • Statistics and Probability
  • Artificial Intelligence
  • Astronomy and Astrophysics
  • Surgery
  • Radiology, Nuclear Medicine and Imaging

Frequent collaborators in their work were:

  • Radu V. Craiu
  • Vianey Leos-Barajas
  • Daniel M. Tartakovsky
  • David A. van Dyk
  • V. Kashyap

Zimmerman published extensively across several scientific venues. Notable publication venues included:

  • arXiv (Cornell University)
  • Journal of Fluid Mechanics
  • Monthly Notices of the Royal Astronomical Society
  • Journal of the American Statistical Association
  • American Journal of Neuroradiology

Their recent papers demonstrated a variety of research interests and methodologies. Selected publications include:

  • Solute dispersion in bifurcating networks (2020) published in the Journal of Fluid Mechanics
  • MR Imaging of White Matter Disease in Children (2024) published in the American Journal of Neuroradiology
  • Separating states in astronomical sources using hidden Markov models: with a case study of flaring and quiescence on EV Lac (2024) published in Monthly Notices of the Royal Astronomical Society
  • Copula Modeling of Serially Correlated Multivariate Data with Hidden Structures (2023) published in the Journal of the American Statistical Association

Robert A. Zimmerman's body of work reflected cross-disciplinary scholarship, with a particular emphasis on statistical and Bayesian modeling techniques applied to biomedical and astrophysical data.

Best Publications

  • Prevention of a First Stroke by Transfusions in Children with Sickle Cell Anemia and Abnormal Results on Transcranial Doppler Ultrasonography

    R J Adams;V C McKie;L Hsu;B Files

  • Subcortical brain volume differences in participants with attention deficit hyperactivity disorder in children and adults: a cross-sectional mega-analysis

    Martine Hoogman;Janita Bralten;Derrek P. Hibar;Maarten Mennes

  • Intracranial hematomas: imaging by high-field MR.

    J M Gomori;R I Grossman;H I Goldberg;R A Zimmerman

  • Nonaccidental head injury in infants--the "shaken-baby syndrome".

    Ann-Christine Duhaime;Cindy W. Christian;Lucy Balian Rorke;Robert A. Zimmerman

  • Brain maturation is delayed in infants with complex congenital heart defects

    Daniel J. Licht;David M. Shera;Robert R. Clancy;Gil Wernovsky

  • An MRI study of neurological injury before and after congenital heart surgery.

    William T. Mahle;Federica Tavani;Robert A. Zimmerman;Susan C. Nicolson

  • Cognitive functioning and brain magnetic resonance imaging in children with sickle Cell disease. Neuropsychology Committee of the Cooperative Study of Sickle Cell Disease.

    Armstrong Fd;Thompson Rj;Wang W;Zimmerman R

  • Proton magnetic resonance spectroscopy in patients with glial tumors: a multicenter study

    William G. Negendank;Rolf Sauter;Truman R. Brown;Jeffrey L. Evelhoch

  • Total and regional brain volumes in a population-based normative sample from 4 to 18 years: The NIH MRI study of normal brain development

    W. S. Ball;A. W. Byars;M. Schapiro;W. Bommer

  • Magnetic resonance scans should replace biopsies for the diagnosis of diffuse brain stem gliomas: a report from the Children's Cancer Group.

    A. Albright;Roger Packer;Robert Zimmerman;Lucy Rorke

  • Brain MR: Pathologic Correlation with Gross and Histopathology. 2. Hyperintense White-Matter Foci in the Elderly

    Bruce H. Braffman;Robert A. Zimmerman;John Q. Trojanowski;Nicholas K. Gonatas

  • Brain MR: pathologic correlation with gross and histopathology. 1. Lacunar infarction and Virchow-Robin spaces.

    Bruce H. Braffman;Robert A. Zimmerman;John Q. Trojanowski;Nicholas K. Gonatas

  • Longitudinal changes in brain magnetic resonance imaging findings in children with sickle cell disease

    Charles H. Pegelow;Eric A. Macklin;Franklin G. Moser;Winfred C. Wang

  • Analysis of brain and cerebrospinal fluid volumes with MR imaging. Part I. Methods, reliability, and validation.

    M I Kohn;N K Tanna;G T Herman;S M Resnick

  • Neuropsychologic performance in school-aged children with sickle cell disease: a report from the Cooperative Study of Sickle Cell Disease.

    Winfred Wang;Laura Enos;Dianne Gallagher;Robert Thompson

  • Periventricular leukomalacia is common after neonatal cardiac surgery.

    Kristen K Galli;Robert A Zimmerman;Gail P Jarvik;Gil Wernovsky

  • Preoperative cerebral blood flow is diminished in neonates with severe congenital heart defects.

    Daniel J. Licht;Jiongjiong Wang;David W. Silvestre;Susan C. Nicolson

  • Silent Cerebral Infarcts in Sickle Cell Anemia: A Risk Factor Analysis

    Thomas R. Kinney;Lynn A. Sleeper;Winfred C. Wang;Robert A. Zimmerman

  • Neurofibromatosis type 1: Pathologic substrate of high-signal-intensity foci in the brain

    D P DiPaolo;R A Zimmerman;L B Rorke;E H Zackai

  • Magnetic Resonance Scans Should Replace Biopsies for the Diagnosis of Diffuse Brain Stem Gliomas

    A. Leland Albright;Roger J. Packer;Robert Zimmerman;Lucy B. Rorke

Frequent Co-Authors

Larissa T. Bilaniuk
Larissa T. Bilaniuk Children's Hospital of Philadelphia
Robert I. Grossman
Robert I. Grossman New York University
Roger J. Packer
Roger J. Packer Children’s National Health System
Leslie N. Sutton
Leslie N. Sutton University of Pennsylvania
Lucy B. Rorke
Lucy B. Rorke Children's Hospital of Philadelphia
Peter J. Savino
Peter J. Savino University of California, San Diego
Robert R. Clancy
Robert R. Clancy New York University
Abass Alavi
Abass Alavi University of Pennsylvania
J. William Gaynor
J. William Gaynor Children's Hospital of Philadelphia
Gil Wernovsky
Gil Wernovsky Children's Hospital of Philadelphia

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Exploring a career in medicine doesn't always mean becoming a doctor. Today, there are many related online degrees and career pathways that play a vital role in healthcare. For example, those interested in food science can pursue nutrition degrees online, which open doors to careers in dietary consulting and public health.

For those focusing on leadership roles in healthcare systems, consider cahme accredited mha online programs to develop expertise in healthcare administration. Registered nurses seeking to advance their education can enroll in rn to bsn online with no clinicals programs, which provide flexibility and career advancement without the need for additional clinical hours.

For nurses who aspire to reach the highest levels of practice, short dnp programs offer an accelerated route to a Doctor of Nursing Practice degree. Each of these online pathways can help you make a meaningful impact in healthcare, whether you’re on the frontlines or behind the scenes.

Best Scientists Citing Robert A. Zimmerman

Recently Published Articles