World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
84
Citations
34408
World Ranking
14896
National Ranking
7531

Kenneth Marek 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 Kenneth Marek 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: 384 publications — 35th percentile

35% of scientists in this discipline score the same or lower.

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

Kenneth Marek 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 Kenneth Marek 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: 84 D-Index — 27th percentile

27% of scientists in this discipline score the same or lower.

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

Overview

Kenneth Marek is affiliated with the Institute for Neurodegenerative Disorders in the United States. Their research focuses primarily on medicine with a specialized emphasis on neurology. Among their subfields of study are physiology, radiology, nuclear medicine and imaging, cellular and molecular neuroscience, and cognitive neuroscience.

The scientist's work centers around key topics such as Parkinson's disease mechanisms and treatments, neurological disorders and treatments in general, Alzheimer's disease research and treatments, autism spectrum disorder research, olfactory and sensory function studies, nuclear receptors and signaling, and traumatic brain injury research.

Kenneth Marek has contributed to several peer-reviewed papers, including:

  • "Assessment of heterogeneity among participants in the Parkinson's Progression Markers Initiative cohort using α-synuclein seed amplification: a cross-sectional study" (2023), published in The Lancet Neurology
  • "A biological definition of neuronal α-synuclein disease: towards an integrated staging system for research" (2024), published in The Lancet Neurology
  • "Trial of Prasinezumab in Early-Stage Parkinson's Disease" (2022), published in New England Journal of Medicine
  • "Assessment of 18F-PI-2620 as a Biomarker in Progressive Supranuclear Palsy" (2020), published in JAMA Neurology
  • "Validation of Serum Neurofilament Light Chain as a Biomarker of Parkinson's Disease Progression" (2020), published in Movement Disorders

Frequent co-authors include:

  • Andrew Siderowf
  • Tanya Simuni
  • Lana M. Chahine
  • Michael C. Brumm
  • Brit Mollenhauer

Kenneth Marek's research has been published in a range of venues, with a particularly strong presence in:

  • bioRxiv (Cold Spring Harbor Laboratory)
  • Neurology
  • Journal of Parkinson's Disease
  • npj Parkinson's Disease
  • Alzheimer's & Dementia

Best Publications

  • MDS clinical diagnostic criteria for Parkinson's disease

    Ronald B. Postuma;Daniela Berg;Matthew Stern;Werner Poewe

  • Levodopa and the progression of Parkinson's disease.

    Fahn S;Oakes D;Shoulson I;Kieburtz K

  • The Parkinson Progression Marker Initiative (PPMI)

    Kenneth Marek;Danna Jennings;Shirley Lasch;Andrew Siderowf

  • MDS research criteria for prodromal Parkinson's disease

    Daniela Berg;Ronald B. Postuma;Charles H. Adler;Bastiaan R. Bloem

  • Pramipexole vs Levodopa as initial treatment for Parkinson disease: A randomized controlled trial

    R. Holloway;I. Shoulson;K. Kieburtz;M. McDermott

  • Past, present, and future of Parkinson's disease: A special essay on the 200th Anniversary of the Shaking Palsy

    J.A. Obeso;M. Stamelou;M. Stamelou;C.G. Goetz;W. Poewe

  • A controlled trial of rasagiline in early Parkinson disease: The tempo study

    Andrew Siderowf;Matthew Stern;Ira Shoulson;Karl Kieburtz

  • Pramipexole vs levodopa as initial treatment for Parkinson disease: a 4-year randomized controlled trial.

    Robert G Holloway;Ira Shoulson;Stanley Fahn;Karl Kieburtz

  • The Parkinson's progression markers initiative (PPMI): establishing a PD biomarker cohort

    Kenneth Marek;Sohini Chowdhury;Andrew Siderowf;Shirley Lasch

  • Unilateral transplantation of human fetal mesencephalic tissue into the caudate nucleus of patients with parkinson’s disease

    Dennis D. Spencer;Dennis D. Spencer;Richard J. Robbins;Frederick Naftolin;Frederick Naftolin;Kenneth L. Marek;Kenneth L. Marek

  • Evidence for more widespread cerebral pathology in early HD: An MRI-based morphometric analysis

    H. D. Rosas;W. J. Koroshetz;Y. I. Chen;C. Skeuse

  • Looking backward to move forward: early detection of neurodegenerative disorders.

    Steven T. DeKosky;Kenneth Marek

  • Time to redefine PD? Introductory statement of the MDS Task Force on the definition of Parkinson's disease

    Daniela Berg;Ronald B. Postuma;Bastiaan Bloem;Piu Chan

  • [sup 123 I] beta-CIT/SPECT imaging demonstrates bilateral loss of dopamine transporters in hemi-Parkinson's disease

    K. L. Marek;J. P. Seibyl;S. S. Zoghbi;Y. Zea-Ponce

  • [123I]β-CIT SPECT imaging assessment of the rate of Parkinson’s disease progression

    K. Marek;R. Innis;C. van Dyck;B. Fussell

  • Association of Cerebrospinal Fluid β-Amyloid 1-42, T-tau, P-tau181, and α-Synuclein Levels With Clinical Features of Drug-Naive Patients With Early Parkinson Disease

    Ju-Hee Kang;Ju-Hee Kang;David J. Irwin;Alice S. Chen-Plotkin;Andrew Siderowf

  • The role of radiotracer imaging in Parkinson disease

    B. Ravina;D. Eidelberg;J. E. Ahlskog;R. L. Albin

  • Serum Urate as a Predictor of Clinical and Radiographic Progression in Parkinson Disease

    Michael A. Schwarzschild;Steven R. Schwid;Kenneth Marek;Arthur Watts

  • The specificity and sensitivity of transcranial ultrasound in the differential diagnosis of Parkinson's disease: a prospective blinded study

    Alexandra Gaenslen;Barbara Unmuth;Jana Godau;Inga Liepelt

  • Heterozygosity for a mutation in the parkin gene leads to later onset Parkinson disease

    Tatiana Foroud;S. K. Uniacke;L. Liu;Nathan D Pankratz

Frequent Co-Authors

John Seibyl
John Seibyl Yale University
Danna Jennings
Danna Jennings Denali Therapeutics (United States)
Gilles Tamagnan
Gilles Tamagnan Yale University
Caroline M. Tanner
Caroline M. Tanner University of California, San Francisco
Karl Kieburtz
Karl Kieburtz University of Rochester Medical Center
Andrew Siderowf
Andrew Siderowf University of Pennsylvania
Anthony E. Lang
Anthony E. Lang University of Toronto
Robert A. Hauser
Robert A. Hauser University of South Florida
Brit Mollenhauer
Brit Mollenhauer University of Göttingen
Matthew B. Stern
Matthew B. Stern University of Pennsylvania

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

If you are interested in studying Medicine in the USA but seeking flexible alternatives, there are many related online degrees available. Online nursing programs have become particularly popular for students looking to balance studies with work or other commitments. Accredited nursing school online options offer convenience and often greater affordability compared to traditional in-person programs.

For those already holding a registered nurse license, pursuing a bachelor's degree is a natural next step. The cheapest online rn to bsn programs can help you advance your career and open the door to higher-level roles in healthcare.

Aspiring advanced practice nurses might consider enrolling in the cheapest nurse practitioner programs available online. These programs often lead to rewarding, high-demand careers in a variety of healthcare settings.

For those looking toward academic or research-centered roles, a phd in nursing provides the credentials needed for university teaching, policy leadership, or advanced clinical research.

Best Scientists Citing Kenneth Marek

Trending Scientists

Recently Published Articles