World's Best Scientists 2026 revealed!
Kazuichi Okazaki

Kazuichi Okazaki

D-Index & Metrics

Medicine

D-Index
96
Citations
41332
World Ranking
9545
National Ranking
264

Kazuichi Okazaki 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 Kazuichi Okazaki 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: 800 publications — 87th percentile

87% of scientists in this discipline score the same or lower.

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

Kazuichi Okazaki 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 Kazuichi Okazaki 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: 96 D-Index — 53rd percentile

53% of scientists in this discipline score the same or lower.

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

Overview

Kazuichi Okazaki is affiliated with Kansai Medical University in Japan and has a significant publication record in the field of medicine, particularly focusing on surgery, epidemiology, rheumatology, oncology, and molecular biology. Their research primarily addresses IgG4-related and inflammatory diseases, neuroendocrine tumor advances, pancreatitis pathology and treatment, gastrointestinal disorders and treatments, pancreatic and hepatic oncology research, gallbladder and bile duct disorders, and TGF-β signaling in diseases.

Frequent publication venues for Okazaki include:

  • Pancreatology
  • Gastroenterology
  • Digestive Endoscopy
  • Journal of Gastroenterology
  • Pancreas

Okazaki has collaborated often with the following co-authors:

  • Tsukasa Ikeura
  • Makoto Naganuma
  • Kazushige Uchida
  • Atsushi Masamune
  • Terumi Kamisawa

Among their recent papers are the following publications:

  • The 2020 revised comprehensive diagnostic (RCD) criteria for IgG4-RD, 2020, Modern Rheumatology
  • Clinical Practice Guidelines for Pancreatic Cancer 2019 From the Japan Pancreas Society, 2020, Pancreas
  • Variants That Affect Function of Calcium Channel TRPV6 Are Associated With Early-Onset Chronic Pancreatitis, 2020, Gastroenterology
  • Amendment of the Japanese consensus guidelines for autoimmune pancreatitis, 2020, 2022, Journal of Gastroenterology
  • Gastrointestinal endoscopy in the era of the acute pandemic of coronavirus disease 2019: Recommendations by Japan Gastroenterological Endoscopy Society (Issued on April 9th, 2020), 2020, Digestive Endoscopy

Okazaki's body of work encompasses a total of 251 publications in the broad field of medicine, with contributions heavily concentrated in surgery (81 publications), epidemiology (47 publications), and rheumatology (45 publications). Their specialization in pancreatic diseases is underscored by numerous studies addressing pancreatitis pathology and treatment, as well as pancreatic and hepatic oncology research.

This research profile highlights a focus on understanding inflammatory and immune-related mechanisms, along with contributions to guidelines and consensus criteria development relevant to autoimmune pancreatitis and other gastrointestinal diseases. Okazaki's scholarly activity also reflects engagement with multidisciplinary teams and contributions to clinical practice guidelines and pandemic-related recommendations for gastrointestinal endoscopy.

Best Publications

  • Consensus statement on the pathology of IgG4-related disease

    Vikram Deshpande;Yoh Zen;John Kc Chan;Eunhee E Yi

  • Comprehensive diagnostic criteria for IgG4-related disease (IgG4-RD), 2011

    Hisanori Umehara;Kazuichi Okazaki;Yasufumi Masaki;Mitsuhiro Kawano

  • International consensus diagnostic criteria for autoimmune pancreatitis: guidelines of the International Association of Pancreatology.

    Tooru Shimosegawa;Suresh T. Chari;Luca Frulloni;Terumi Kamisawa

  • International Consensus Guidance Statement on the Management and Treatment of IgG4-Related Disease

    A. Khosroshahi;Z. S. Wallace;J. L. Crowe;T. Akamizu

  • A novel clinical entity, IgG4-related disease (IgG4RD): general concept and details

    Hisanori Umehara;Kazuichi Okazaki;Yasufumi Masaki;Mitsuhiro Kawano

  • Standard steroid treatment for autoimmune pancreatitis

    Terumi Kamisawa;Tooru Shimosegawa;Kazuichi Okazaki;Takayoshi Nishino

  • IgG4-Related Disease

    John H. Stone;John K. C. Chan;Vikram Deshpande;Kazuichi Okazaki

  • The 2019 American College of Rheumatology/European League Against Rheumatism classification criteria for IgG4-related disease

    Zachary S. Wallace;Ray P. Naden;Suresh Chari;Hyon K. Choi

  • Clinical diagnostic criteria of autoimmune pancreatitis: revised proposal.

    Kazuichi Okazaki;Shigeyuki Kawa;Terumi Kamisawa;Satoru Naruse

  • Autoimmune-related pancreatitis is associated with autoantibodies and a Th1/Th2-type cellular immune response.

    Kazuichi Okazaki;Kazushige Uchida;Masaya Ohana;Hiroshi Nakase

  • Long-term outcomes of autoimmune pancreatitis: a multicentre, international analysis

    Phil A. Hart;Terumi Kamisawa;William R. Brugge;Jae Bock Chung

  • Recommendations for the nomenclature of IgG4-related disease and its individual organ system manifestations

    John H. Stone;Arezou Khosroshahi;Vikram Deshpande;John K. C. Chan

  • Asian diagnostic criteria for autoimmune pancreatitis: consensus of the Japan-Korea Symposium on Autoimmune Pancreatitis.

    Makoto Otsuki;Jae Bock Chung;Kazuichi Okazaki;Myung Hwan Kim

  • The 2019 American College of Rheumatology/European League Against Rheumatism Classification Criteria for IgG4-Related Disease.

    Zachary S Wallace;Ray P Naden;Suresh Chari;Hyon Choi

  • Autoimmune related pancreatitis

    K. Okazaki;Tsutomu Chiba

  • Controversies in clinical pancreatology: autoimmune pancreatitis: does it exist?

    Randall K Pearson;Daniel S Longnecker;Suresh T Chari;Thomas C Smyrk

  • Clinical diagnostic criteria of IgG4-related sclerosing cholangitis 2012.

    Hirotaka Ohara;Kazuichi Okazaki;Hirohito Tsubouchi;Kazuo Inui

  • Chronic inflammation associated with hepatitis C virus infection perturbs hepatic transforming growth factor β signaling, promoting cirrhosis and hepatocellular carcinoma

    Koichi Matsuzaki;Miki Murata;Katsunori Yoshida;Go Sekimoto

  • Recent advances in the concept and diagnosis of autoimmune pancreatitis and IgG4-related disease

    Kazuichi Okazaki;Kazushige Uchida;Masanori Koyabu;Hideaki Miyoshi

  • Comprehensive Diagnostic Criteria for IgG4-Related Disease

    Hisanori Umehara;Kazuichi Okazaki

Frequent Co-Authors

Tsutomu Chiba
Tsutomu Chiba Kyoto University
Terumi Kamisawa
Terumi Kamisawa Tokyo Metropolitan Komagome Hospital
Shigeyuki Kawa
Shigeyuki Kawa Matsumoto Dental University
Tooru Shimosegawa
Tooru Shimosegawa Tohoku University
Atsushi Kanno
Atsushi Kanno National Institute of Information and Communications Technology
Suresh T. Chari
Suresh T. Chari The University of Texas MD Anderson Cancer Center
Atsushi Masamune
Atsushi Masamune Tohoku University
Myung-Hwan Kim
Myung-Hwan Kim University of Ulsan
Takao Itoi
Takao Itoi Tokyo Medical University
Giuseppe Zamboni
Giuseppe Zamboni University of Verona

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 medical careers in the USA doesn't always require a traditional campus-based education. Online healthcare degrees offer flexibility and affordability, making them appealing for aspiring professionals. For those starting their journey, many colleges now offer the cheapest online nursing program options, allowing students to study at their own pace without breaking the bank.

If you’re already a registered nurse, advancing your career could be easier with an cheapest accredited online rn to bsn programs. These accredited programs enable RNs to earn their BSN online, improving job prospects and earning potential. For nursing professionals aiming for leadership or teaching roles, pursuing the cheapest dnp online program can open doors to top positions in the field.

Even those without a nursing background can enter the field through direct entry online msn programs, designed for non-nurses seeking a master’s in nursing. Exploring these flexible online pathways is a smart move for anyone wanting to start or advance a meaningful healthcare career in the U.S.

Best Scientists Citing Kazuichi Okazaki

Trending Scientists