World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
106
Citations
38740
World Ranking
6575
National Ranking
3493

John P. Roberts 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 John P. Roberts 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: 524 publications — 62nd percentile

62% of scientists in this discipline score the same or lower.

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

John P. Roberts 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 John P. Roberts 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: 106 D-Index — 69th percentile

69% of scientists in this discipline score the same or lower.

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

Overview

John P. Roberts is affiliated with the University of California, San Francisco in the United States. Their research contributions focus largely on medicine, with a particular emphasis on surgery, hepatology, transplantation, public health, and oncology.

The main topics covered in Roberts's work include:

  • Organ Transplantation Techniques and Outcomes
  • Liver Disease and Transplantation
  • Organ Donation and Transplantation
  • Renal Transplantation Outcomes and Treatments
  • Liver Disease Diagnosis and Treatment
  • Hepatocellular Carcinoma Treatment and Prognosis
  • COVID-19 and healthcare impacts

The scholar has published extensively, with key papers including:

  • Liver Transplantation for Hepatocellular Carcinoma. Working Group Report from the ILTS Transplant Oncology Consensus Conference, 2020, Transplantation
  • Pretransplant solid organ malignancy and organ transplant candidacy: A consensus expert opinion statement, 2020, American Journal of Transplantation
  • Ten-Year Outcomes of Liver Transplant and Downstaging for Hepatocellular Carcinoma, 2022, JAMA Surgery
  • Preexisting melanoma and hematological malignancies, prognosis, and timing to solid organ transplantation: A consensus expert opinion statement, 2020, American Journal of Transplantation
  • A novel waitlist dropout score for hepatocellular carcinoma - identifying a threshold that predicts worse post-transplant survival, 2020, Journal of Hepatology

Roberts frequently collaborates with other researchers in the field. Among the most common coauthors are:

  • Nancy L. Ascher
  • Hillary J. Braun
  • Chris E. Freise
  • Garrett R. Roll
  • Neil Mehta

Their work appears regularly in several publication venues prominent in transplantation and hepatology, including:

  • American Journal of Transplantation
  • Transplantation
  • Clinical Transplantation
  • Liver Transplantation
  • JAMA Network Open

With 181 publications categorized within medicine, Roberts maintains a significant focus on surgery (48 publications), hepatology (43 publications), public health, environmental and occupational health (26 publications), transplantation (15 publications), and oncology (12 publications).

Best Publications

  • Liver transplantation for hepatocellular carcinoma: Expansion of the tumor size limits does not adversely impact survival

    Francis Y. Yao;Linda Ferrell;Nathan M. Bass;Jessica J. Watson

  • Liver Transplantation for Hepatocellular Carcinoma: Validation of the UCSF-Expanded Criteria Based on Preoperative Imaging

    F. Y. Yao;L. Xiao;N. M. Bass;R. Kerlan

  • Excellent outcome following down-staging of hepatocellular carcinoma prior to liver transplantation: an intention-to-treat analysis.

    Francis Y. Yao;Robert K. Kerlan;Ryutaro Hirose;Timothy J. Davern

  • Creation of transjugular intrahepatic portosystemic shunts with the wallstent endoprosthesis: results in 100 patients.

    Jeanne M. LaBerge;Ernest J. Ring;Roy L. Gordon;John R. Lake

  • Recurrent and acquired hepatitis C viral infection in liver transplant recipients.

    Teresa L. Wright;Teresa L. Wright;Teresa L. Wright;Elizabeth Donegan;Elizabeth Donegan;Elizabeth Donegan;Henry H. Hsu;Henry H. Hsu;Henry H. Hsu;Linda Ferrell;Linda Ferrell;Linda Ferrell

  • Liver transplantation for hepatocellular carcinoma: comparison of the proposed UCSF criteria with the Milan criteria and the Pittsburgh modified TNM criteria.

    Francis Y. Yao;Linda Ferrell;Nathan M. Bass;Peter Bacchetti

  • Serum sodium predicts mortality in patients listed for liver transplantation.

    Scott W. Biggins;Harry J. Rodriguez;Peter Bacchetti;Nathan M. Bass

  • Liver transplantation for hepatocellular carcinoma: analysis of survival according to the intention-to-treat principle and dropout from the waiting list.

    Francis Y. Yao;Nathan M. Bass;Bev Nikolai;Timothy J. Davern

  • The risk of transmission of hepatitis B from HBsAg(-), HBcAb(+), HBIgM(-) organ donors.

    Michael E. Wachs;William J. Amend;Nancy L. Ascher;Peter N. Bretan

  • Downstaging of hepatocellular cancer before liver transplant: Long-term outcome compared to tumors within Milan criteria

    Francis Y. Yao;Neil Mehta;Jennifer Flemming;Jennifer Dodge

  • Functional analysis of grafts from living donors. Implications for the treatment of older recipients.

    Jean C. Emond;John F. Renz;Linda D. Ferrell;Philip Rosenthal

  • Bioavailability of cyclosporine with concomitant rifampin administration is markedly less than predicted by hepatic enzyme induction.

    Mary F Hebert;John P Roberts;Thomayant Prueksaritanont;Leslie Z Benet

  • Development of a novel frailty index to predict mortality in patients with end-stage liver disease

    Jennifer C. Lai;Kenneth E. Covinsky;Jennifer L. Dodge;W. John Boscardin

  • Report of a national conference on liver allocation in patients with hepatocellular carcinoma in the United States.

    Elizabeth A. Pomfret;Kenneth Washburn;Christoph Wald;Michael A. Nalesnik

  • Complete immunosuppression withdrawal and subsequent allograft function among pediatric recipients of parental living donor liver transplants.

    Sandy Feng;Udeme D. Ekong;Steven J. Lobritto;Anthony J. Demetris

  • Report of the Crystal City Meeting to Maximize the Use of Organs Recovered from the Cadaver Donor

    Bruce R. Rosengard;Sandy Feng;Edward J. Alfrey;Jonathan G. Zaroff

  • "Occult" hepatitis B virus as source of infection in liver transplant recipients

    O. Chazouillères;D. Mamish;M. Kim;K. Carey

  • ASTS recommended practice guidelines for controlled donation after cardiac death organ procurement and transplantation.

    D. J. Reich;D. C. Mulligan;P. L. Abt;T. L. Pruett

  • Two-year outcome following transjugular intrahepatic portosystemic shunt for variceal bleeding: Results in 90 patients

    Jeanne M. Laberge;Kenneth A. Somberg;John R. Lake;Roy L. Gordon

  • Tacrolimus oral bioavailability doubles with coadministration of ketoconazole

    Leslie C. Floren;Ihor Bekersky;Leslie Z. Benet;Qais Mekki

Frequent Co-Authors

Nancy L. Ascher
Nancy L. Ascher University of California, San Francisco
John R. Lake
John R. Lake University of Minnesota
Linda D. Ferrell
Linda D. Ferrell University of California, San Francisco
Norah A. Terrault
Norah A. Terrault University of Southern California
Nathan M. Bass
Nathan M. Bass University of California, San Francisco
Philip J. Rosenthal
Philip J. Rosenthal University of California, San Francisco
Teresa L. Wright
Teresa L. Wright GlaxoSmithKline (United States)
Peter Bacchetti
Peter Bacchetti University of California, San Francisco
Robert M. Merion
Robert M. Merion University of Michigan–Ann Arbor
Richard B. Freeman
Richard B. Freeman Harvard University

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