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University · Philadelphia · United States

University of Pennsylvania

In research, University of Pennsylvania stands highest in Health Sciences (#2 of 11,982 worldwide), Medicine (#8 of 10,443 worldwide) and Life Sciences (#9 of 7,800 worldwide), 2022–2025. Relative to its size it is most specialised in Equine, Transplantation and Aging — Equine is 10.5× its share of world research.

upenn.eduROR OpenAlex
World rank, 2022–2025
#36
of 28,054 · #17 all time
Rank in United States
#9
of 4,192
Research works
161k
▲ 8% vs 2013–17
Citations
8M
49.7 per fractional work
Top-10% rate
23.5%
record average 16.5%
Open access
39%
world 28%

What is University of Pennsylvania 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
Health SciencesDomain #2 of 11,982 20.3%8,454 #5
MedicineField #8 of 10,443 19.6%7,398 #8
Life SciencesDomain #9 of 7,800 25.6%3,448 #10
Biochemistry, Genetics and Molecular BiologyField #14 of 3,579 25.9%2,000 #18
Social SciencesDomain #55 of 10,521 29.9%3,416 #12
Immunology and MicrobiologyField #4 of 682 24.8%467 #9
EpidemiologySubfield #6 of 976 20.2%581 #8
Molecular BiologySubfield #14 of 2,175 26.5%1,124 #13
OncologySubfield #6 of 772 19.5%604 #11
NursingField #2 of 213 29.0%91 #1

Each strip is that field’s whole ranked pool, with the notch where University of Pennsylvania 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. Health Sciences#5 #2
  2. Medicine#8 #8
  3. Life Sciences#10 #9
  4. Biochemistry, Genetics and Molecular Biology#18 #14
  5. Social Sciences#12 #55
  6. Immunology and Microbiology#9 #4
  7. Epidemiology#8 #6
  8. Molecular Biology#13 #14
  9. Oncology#11 #6
  10. Nursing#1 #2
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 University of Pennsylvania specialise in?

Where its research is concentrated relative to its size: Equine takes 10.5× the share of its output that it takes of world research.

  1. EquineSubfield · 25.3 works10×
  2. TransplantationSubfield · 46.2 works5.6×
  3. AgingSubfield · 22.3 works5.0×
  4. VeterinaryField · 116.7 works4.6×
  5. Statistics and ProbabilitySubfield · 162.5 works4.1×
  6. Small AnimalsSubfield · 91.4 works4.0×
  7. Emergency MedicineSubfield · 145.1 works3.2×
← 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: 0.21× its world share, 186 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 2.02× its world share, 2,000 worksBiochemistry, Geneti…Immunology and Microbiology: 2.50× its world share, 467 worksImmunology and Micro…Neuroscience: 2.47× its world share, 744 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.79× its world share, 52 worksPharmacology, Toxico…Chemical Engineering: 0.39× its world share, 25 worksChemical EngineeringChemistry: 0.69× its world share, 202 worksChemistryComputer Science: 0.52× its world share, 753 worksComputer ScienceEarth and Planetary Sciences: 0.28× its world share, 82 worksEarth and Planetary …Energy: 0.23× its world share, 40 worksEnergyEngineering: 0.33× its world share, 915 worksEngineeringEnvironmental Science: 0.28× its world share, 258 worksEnvironmental ScienceMaterials Science: 0.48× its world share, 314 worksMaterials ScienceMathematics: 1.20× its world share, 262 worksMathematicsPhysics and Astronomy: 0.88× its world share, 362 worksPhysics and AstronomyDentistry: 1.69× its world share, 152 worksDentistryHealth Professions: 1.43× its world share, 696 worksHealth ProfessionsMedicine: 2.08× its world share, 7,398 worksMedicineNursing: 1.00× its world share, 91 worksNursingVeterinary: 4.63× its world share, 117 worksVeterinaryArts and Humanities: 0.51× its world share, 273 worksArts and HumanitiesBusiness, Management and Accounting: 0.51× its world share, 305 worksBusiness, Management…Decision Sciences: 0.80× its world share, 144 worksDecision SciencesEconomics, Econometrics and Finance: 1.16× its world share, 460 worksEconomics, Econometr…Psychology: 1.48× its world share, 835 worksPsychologySocial Sciences: 0.60× its world share, 1,399 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Veterinary, 4.6×. Every wedge is a field page.

Who are the top researchers at University of Pennsylvania?

Ranked on the composite score, Martin E. P. Seligman, Francis X. Diebold and Thomas A. Wadden lead among researchers whose main affiliation is University of Pennsylvania.

  1. 1 Martin E. P. Seligman · #854 worldwide 7.1k citations · 91 works
  2. 2 Francis X. Diebold · #1,164 worldwide 3.2k citations · 96 works
  3. 3 Thomas A. Wadden · #1,225 worldwide 2.2k citations · 91 works
  4. 4 Aaron T. Beck · #1,453 worldwide 2.7k citations · 90 works
  5. 5 Lee A. Fleisher · #1,742 worldwide 1.2k citations · 103 works
  6. 6 H. H. Williams · #1,881 worldwide 5.3k citations · 235 works
  7. 7 Daniel H. Janzen · #1,965 worldwide 2.1k citations · 131 works
  8. 8 Carl H. June · #2,077 worldwide 1.8k citations · 148 works
  9. 9 Samuel H. Preston · #2,470 worldwide 1.4k citations · 77 works
  10. 10 Bárbara Riegel · #2,628 worldwide 1.2k citations · 99 works
All ranked researchers at University of Pennsylvania

Which keywords describe research at University of Pennsylvania?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Epidemiology, Inflammation, Immunotherapy, Oxidative Stress, Cancer Immunotherapy, Quality of Life, Biomarkers and Risk Factors.

▲ 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. Epidemiology1,304▲ 1.78×131 topics
  2. Inflammation654▲ 1.70×83 topics
  3. Oxidative Stress487▲ 1.61×62 topics
  4. Quality of Life455▲ 1.70×54 topics
  5. Machine Learning444▼ 0.73×83 topics
  6. Immunotherapy440▲ 3.3×19 topics
  7. Cancer404▲ 1.63×55 topics
  8. Risk Factors378▲ 1.86×37 topics
  9. Mental Health377▲ 1.39×43 topics
  10. Public Health372▲ 1.38×67 topics
  11. Treatment368▲ 1.64×52 topics
  12. Biomarkers322▲ 2.5×18 topics
  13. Diagnosis290▲ 1.68×41 topics
  14. Cardiovascular Disease286▲ 1.39×39 topics
  15. Chemotherapy276▲ 2.1×25 topics
  16. Depression265▲ 1.63×23 topics
  17. Management262▲ 1.80×34 topics
  18. Neurological Disorders259▲ 2.5×20 topics
  19. Genetics257▲ 1.98×26 topics
  20. Clinical Trials253▲ 2.0×19 topics
  21. Aging243▲ 2.5×18 topics
  22. Gene Expression241▲ 2.1×19 topics
  23. Mortality237▲ 2.2×13 topics
  24. Genetic Mutations236▲ 2.9×23 topics
  25. Cancer Immunotherapy213▲ 7.5×3 topics
  26. Primary Care203▲ 2.9×15 topics
  27. Precision Medicine203▲ 2.4×8 topics
  28. Prognostic Factors197▲ 2.4×14 topics
  29. Lymphoma196▲ 6.6×4 topics
  30. Radiotherapy192▲ 2.7×13 topics
  31. Neurodegeneration192▲ 3.5×11 topics
  32. Neuroimaging188▲ 3.8×11 topics
  33. Guidelines186▲ 2.1×13 topics
  34. Tumor Regression168▲ 8.3×2 topics
  35. Ethical Considerations168▲ 2.7×17 topics
  36. Neuroinflammation162▲ 3.1×6 topics
  37. Leukemia154▲ 9.9×2 topics
  38. Mortality Risk152▲ 3.4×6 topics
  39. CAR T Cells149▲ 11×1 topic
  40. Chimeric Antigen Receptor149▲ 11×1 topic

Which research topics does University of Pennsylvania publish most on?

By volume in 2022–2025: CAR-T cell therapy research, Dementia and Cognitive Impairment Research, Radiomics and Machine Learning in Medical Imaging and Alzheimer's disease research and treatments.

CAR-T cell therapy research: 149 fractional worksDementia and Cognitive Impairment Research: 94 fractional worksRadiomics and Machine Learning in Medical Imaging: 65 fractional worksAlzheimer's disease research and treatments: 65 fractional worksCancer Immunotherapy and Biomarkers: 65 fractional worksHealth Systems, Economic Evaluations, Quality of Life: 64 fractional worksHealthcare Policy and Ma…62Healthcare Policy and Management: 62 fractional worksDiversity and Career in Medicine: 61 fractional worksFunctional Brain Connectivity Studies: 60 fractional worksImmune Cell Function and…55Immune Cell Function and Interaction: 55 fractional works
OncologyPsychiatry and Mental healthRadiology, Nuclear Medicine and ImagingPhysiology4 others

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

  1. 1 CAR-T cell therapy researchOncology 149 works
  2. 2 Dementia and Cognitive Impairment ResearchPsychiatry and Mental health 94 works
  3. 3 Radiomics and Machine Learning in Medical ImagingRadiology, Nuclear Medicine and Imaging 65 works
  4. 4 Alzheimer's disease research and treatmentsPhysiology 65 works
  5. 5 Cancer Immunotherapy and BiomarkersOncology 65 works
  6. 6 Health Systems, Economic Evaluations, Quality of LifeEconomics and Econometrics 64 works
  7. 7 Healthcare Policy and ManagementEconomics and Econometrics 62 works
  8. 8 Diversity and Career in MedicineGender Studies 61 works
  9. 9 Functional Brain Connectivity StudiesCognitive Neuroscience 60 works
  10. 10 Immune Cell Function and InteractionImmunology 55 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 available39.3%not open60.7%

World: 28% of research is openly available.

with international co-authors12.9%domestic only87.1%

World: 19% is written across borders.

How has University of Pennsylvania's research output changed?

Output in 2018–2022 was 8% 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 Philadelphia

All research institutions in Philadelphia

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.