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Hospital / health system · Tokyo · Japan

Nippon Medical School Hospital

In research, Nippon Medical School Hospital stands highest in Medicine (#5,370 of 10,443 worldwide), Health Sciences (#6,579 of 11,982 worldwide) and Surgery (#1,747 of 1,816 worldwide), 2022–2025. Relative to its size it is most specialised in Surgery, Pulmonary and Respiratory Medicine and Cardiology and Cardiovascular Medicine — Surgery is 8.7× its share of world research.

hosp.nms.ac.jpROR OpenAlex
World rank, 2022–2025
#15,532
of 28,054 · #16,165 all time
Rank in Japan
#414
of 1,070
Research works
1.7k
▲ 32% vs 2013–17
Citations
21k
11.9 per fractional work
Top-10% rate
6.9%
record average 16.5%
Open access
54%
world 28%

What is Nippon Medical School Hospital known for in research?

The fields where it stands highest, 2022–2025, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
MedicineField #5,370 of 10,443 6.3%284 #5140
Health SciencesDomain #6,579 of 11,982 6.3%292 #6840
SurgerySubfield #1,747 of 1,816 2.6%70 #3056

Each strip is that field’s whole ranked pool, with the notch where Nippon Medical School Hospital sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

Which of those standings moved

The same fields on both windows: where it stood over the whole record, and where it stands in 2022–2025. The distance is the story, and it is the one thing the two rank columns above cannot show.

  1. Medicine#5,140 #5,370
  2. Health Sciences#6,840 #6,579
  3. Surgery#3,056 #1,747
all time2022–2025, better2022–2025, worse

A dot further right is a better standing. Fields it was not ranked in over the whole record are left out.

What does Nippon Medical School Hospital specialise in?

Where its research is concentrated relative to its size: Surgery takes 8.7× the share of its output that it takes of world research.

  1. SurgerySubfield · 69.7 works8.7×
  2. Pulmonary and Respiratory MedicineSubfield · 35.1 works6.6×
  3. Cardiology and Cardiovascular MedicineSubfield · 23.5 works6.5×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 0.05× its world share, 1 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.03× its world share, 19 worksBiochemistry, Geneti…Immunology and Microbiology: 1.78× its world share, 6 worksImmunology and Micro…Neuroscience: 1.52× its world share, 8 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 1.33× its world share, 2 worksPharmacology, Toxico…Chemical Engineering: 0.04× its world share, 0 worksChemical EngineeringComputer Science: 0.07× its world share, 2 worksComputer ScienceEngineering: 0.13× its world share, 7 worksEngineeringEnvironmental Science: 0.06× its world share, 1 worksEnvironmental ScienceMaterials Science: 0.05× its world share, 1 worksMaterials SciencePhysics and Astronomy: 0.13× its world share, 1 worksPhysics and AstronomyDentistry: 0.33× its world share, 0 worksDentistryHealth Professions: 0.58× its world share, 5 worksHealth ProfessionsMedicine: 4.30× its world share, 284 worksMedicineNursing: 0.79× its world share, 1 worksNursingVeterinary: 0.95× its world share, 0 worksVeterinaryArts and Humanities: 0.04× its world share, 0 worksArts and HumanitiesDecision Sciences: 0.12× its world share, 0 worksDecision SciencesEconomics, Econometrics and Finance: 0.15× its world share, 1 worksEconomics, Econometr…Psychology: 0.19× its world share, 2 worksPsychologySocial Sciences: 0.03× its world share, 1 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Medicine, 4.3×. Every wedge is a field page.

Who are the top researchers at Nippon Medical School Hospital?

Ranked on the composite score, Masaaki Hirano, Hitoshi Mizuno and Shinya Yamashita lead among researchers whose main affiliation is Nippon Medical School Hospital.

  1. 1 Masaaki Hirano Japan · #617,380 worldwide 57 citations · 28 works
  2. 2 Hitoshi Mizuno Japan · #1,174,416 worldwide 24 citations · 46 works
  3. 3 Shinya Yamashita Japan · #1,316,057 worldwide 9 citations · 22 works
  4. 4 Shirou Katayama Japan · #1,320,266 worldwide 13 citations · 18 works
  5. 5 Yuya Ise Japan · #1,388,160 worldwide 12 citations · 22 works
  6. 6 Shuhei Tara Japan · #1,388,362 worldwide 28 citations · 29 works
All ranked researchers at Nippon Medical School Hospital

Which keywords describe research at Nippon Medical School Hospital?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Epidemiology, Treatment, Chemotherapy, Guidelines, Complications, Immunotherapy, Diagnosis and Molecular Characterization.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Epidemiology41▲ 3.0×77 topics
  2. Treatment24▲ 5.8×35 topics
  3. Chemotherapy21▲ 8.7×21 topics
  4. Inflammation20▲ 2.8×49 topics
  5. Diagnosis17▲ 5.3×28 topics
  6. Guidelines16▲ 10×11 topics
  7. Quality of Life16▲ 3.2×27 topics
  8. Immunotherapy16▲ 6.5×15 topics
  9. Complications16▲ 9.1×14 topics
  10. Molecular Characterization14▲ 22×5 topics
  11. Heart Failure13▲ 8.9×13 topics
  12. Neoadjuvant Therapy13▲ 16×5 topics
  13. Clinical Practice Guidelines13▲ 6.9×13 topics
  14. Genetic Mutations11▲ 7.7×16 topics
  15. Management11▲ 4.2×24 topics
  16. Surgical Management11▲ 7.9×17 topics
  17. Risk Factors11▲ 2.9×16 topics
  18. Cardiovascular Disease10▲ 2.7×19 topics
  19. Prognostic Factors10▲ 6.8×13 topics
  20. Survival Analysis10▲ 10×6 topics
  21. Clinical Guidelines8▲ 7.7×8 topics
  22. Prognosis8▲ 6.8×9 topics
  23. Echocardiography7▲ 8.0×7 topics
  24. Neuroprotection7▲ 6.1×7 topics
  25. Anticoagulant Therapy7▲ 17×4 topics
  26. Tumor Microenvironment7▲ 4.7×7 topics
  27. Autoantibodies7▲ 8.9×7 topics
  28. Gastric Cancer7▲ 18×3 topics
  29. Radiotherapy7▲ 5.4×11 topics
  30. Pathophysiology7▲ 6.8×10 topics
  31. Stroke Prevention7▲ 16×2 topics
  32. Magnetic Resonance Imaging6▲ 7.3×4 topics
  33. Endoscopic Resection6▲ 18×2 topics
  34. Breast Reconstruction6▲ 28×2 topics
  35. Survival Rates6▲ 17×2 topics
  36. Catheter Ablation6▲ 13×2 topics
  37. Cancer Risk6▲ 7.3×8 topics
  38. Urothelial Carcinoma5▲ 36×2 topics
  39. Bladder Cancer5▲ 41×1 topic
  40. Cystectomy5▲ 41×1 topic

Which research topics does Nippon Medical School Hospital publish most on?

By volume in 2022–2025: Bladder and Urothelial Cancer Treatments, Reconstructive Surgery and Microvascular Techniques, Gastric Cancer Management and Outcomes and Atrial Fibrillation Management and Outcomes.

Bladder and Urothelial C…5Bladder and Urothelial Cancer Treatments: 5 fractional worksReconstructive Surgery a…4Reconstructive Surgery and Microvascular Techniques: 4 fractional worksGastric Cancer Management and Outcomes: 4 fractional worksAtrial Fibrillation Management and Outcomes: 4 fractional worksCardiac Arrest and Resuscitation: 4 fractional worksCancer Immunotherapy and Biomarkers: 3 fractional worksHeart Failure Treatment and Management: 3 fractional worksCardiovascular Function …3Cardiovascular Function and Risk Factors: 3 fractional worksCerebrovascular and Carotid Artery Diseases: 3 fractional worksGastrointestinal disorders and treatments: 3 fractional works
SurgeryPulmonary and Respiratory MedicineCardiology and Cardiovascular MedicineEmergency Medicine1 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Bladder and Urothelial Cancer Treatments Surgery 5 works
  2. 2 Reconstructive Surgery and Microvascular Techniques Surgery 4 works
  3. 3 Gastric Cancer Management and Outcomes Pulmonary and Respiratory Medicine 4 works
  4. 4 Atrial Fibrillation Management and Outcomes Cardiology and Cardiovascular Medicine 4 works
  5. 5 Cardiac Arrest and Resuscitation Emergency Medicine 4 works
  6. 6 Cancer Immunotherapy and Biomarkers Oncology 3 works
  7. 7 Heart Failure Treatment and Management Cardiology and Cardiovascular Medicine 3 works
  8. 8 Cardiovascular Function and Risk Factors Cardiology and Cardiovascular Medicine 3 works
  9. 9 Cerebrovascular and Carotid Artery Diseases Pulmonary and Respiratory Medicine 3 works
  10. 10 Gastrointestinal disorders and treatments Surgery 3 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available53.5%not open46.5%

World: 28% of research is openly available.

with international co-authors7.9%domestic only92.1%

World: 19% is written across borders.

How has Nippon Medical School Hospital's research output changed?

Output in 2018–2022 was 32% higher than in 2013–2017.

1990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Other research institutions in Tokyo

All research institutions in Tokyo

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.