Science Explorer Back to mapMap
Discussion
Hospital / health system · New Delhi · India

Indraprastha Apollo Hospitals

In research, Indraprastha Apollo Hospitals stands highest in Medicine (#5,410 of 8,541 worldwide), Surgery (#1,019 of 1,532 worldwide) and Health Sciences (#6,983 of 9,902 worldwide), 2022-now. Relative to its size it is most specialised in Surgery (Surgery is 7.2× its share of world research).

apollohospdelhi.comROR OpenAlex
World rank, 2022-now
#13,369
of 22,385 · #31,045 all time
Rank in India
#918
of 1,562
Research works
2.4k
▲ 4% vs 2018-21
Citations
16k
6.9 per fractional work
Top-10% rate
5.8%
all institutions 10.0%
vs its own fields
0.70×
1.00× is exactly expected
Open access
49%
world 40%
International
8%
world 18%
Indraprastha Apollo Hospitals

What is Indraprastha Apollo Hospitals known for in research?

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

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
MedicineField #5,410 of 8,541 5.1%408 #12286
SurgerySubfield #1,019 of 1,532 5.9%87 #2560
Health SciencesDomain #6,983 of 9,902 5.3%426 #14984

Each strip is that field's whole ranked pool, with the notch where Indraprastha Apollo Hospitals 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 average mark, because the average differs by field (from about 6% in Dentistry to 21% in Economics).

Which of those standings moved

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

  1. Medicine#12,286 #5,410
  2. Surgery#2,560 #1,019
  3. Health Sciences#14,984 #6,983
all time2022-now, better2022-now, worse

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

Which fields of science does Indraprastha Apollo Hospitals work in?

In 2022-now, 82% of research at Indraprastha Apollo Hospitals is in Health Sciences, 9% in Life Sciences. Its largest fields are Medicine (78%), Biochemistry, Genetics and Molecular Biology (5%), Neuroscience (3%). It does 3.5× the world's share of Health Sciences.

Health Sciences: 472 fractional works · 82.4% of its workMedicine: 450 fractional works · 78.5% of its workSurgery: 97 fractional works · 16.9% of its workPulmonary and Respiratory Medicine: 30 fractional works · 5.1% of its workEpidemiology: 28 fractional works · 4.9% of its workPublic Health, Environmental and Occupational Health: 23 fractional works · 4.1% of its workOncology: 19 fractional works · 3.3% of its workNeurology: 19 fractional works · 3.2% of its workCardiology and Cardiovascular Medicine: 18 fractional works · 3.2% of its workEndocrinology, Diabetes and Metabolism: 18 fractional works · 3.1% of its workPhysiology: 17 fractional works · 3.0% of its workPediatrics, Perinatology and Child Health: 17 fractional works · 2.9% of its workRheumatology: 16 fractional works · 2.8% of its workPathology and Forensic Medicine: 14 fractional works · 2.5% of its workRadiology, Nuclear Medicine and Imaging: 13 fractional works · 2.3% of its workInfectious Diseases: 12 fractional works · 2.1% of its workRehabilitation: 12 fractional works · 2.0% of its workGenetics: 11 fractional works · 1.9% of its workHematology: 10 fractional works · 1.8% of its workHepatology: 9 fractional works · 1.6% of its workPsychiatry and Mental health: 7 fractional works · 1.3% of its workOrthopedics and Sports Medicine: 7 fractional works · 1.1% of its workNephrology: 6 fractional works · 1.0% of its workObstetrics and Gynecology: 6 fractional works · 1.0% of its workUrology: 5 fractional works · 0.9% of its workCritical Care and Intensive Care Medicine: 4 fractional works · 0.7% of its workEmergency Medicine: 4 fractional works · 0.7% of its workOphthalmology: 4 fractional works · 0.7% of its workReproductive Medicine: 4 fractional works · 0.6% of its workHealth Informatics: 3 fractional works · 0.6% of its workTransplantation: 3 fractional works · 0.5% of its workAnesthesiology and Pain Medicine: 2 fractional works · 0.4% of its workOtorhinolaryngology: 2 fractional works · 0.4% of its workGastroenterology: 2 fractional works · 0.4% of its workPharmacology: 2 fractional works · 0.3% of its workDermatology: 2 fractional works · 0.3% of its workInternal Medicine: 1 fractional works · 0.2% of its workFamily Practice: 1 fractional works · 0.2% of its workSmaller subfields together: 2 fractional works · 0.4% of its workHealth Professions: 14 fractional works · 2.4% of its workGeneral Health Professions: 7 fractional works · 1.2% of its workEmergency Medical Services: 2 fractional works · 0.4% of its workHealth Information Management: 1 fractional works · 0.2% of its workSmaller subfields together: 3 fractional works · 0.6% of its workDentistry: 5 fractional works · 0.9% of its workOral Surgery: 3 fractional works · 0.5% of its workPeriodontics: 2 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.2% of its workNursing: 2 fractional works · 0.4% of its workNutrition and Dietetics: 2 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.0% of its workVeterinary: 1 fractional works · 0.2% of its workSmall Animals: 1 fractional works · 0.2% of its workLife Sciences: 52 fractional works · 9.1% of its workBiochemistry, Genetics and Molecular Biology: 31 fractional works · 5.4% of its workGenetics: 12 fractional works · 2.0% of its workMolecular Biology: 10 fractional works · 1.8% of its workClinical Biochemistry: 3 fractional works · 0.5% of its workCancer Research: 2 fractional works · 0.4% of its workSmaller subfields together: 4 fractional works · 0.7% of its workNeuroscience: 15 fractional works · 2.6% of its workNeurology: 7 fractional works · 1.2% of its workCellular and Molecular Neuroscience: 3 fractional works · 0.6% of its workCognitive Neuroscience: 3 fractional works · 0.5% of its workDevelopmental Neuroscience: 1 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workImmunology and Microbiology: 5 fractional works · 0.9% of its workImmunology: 4 fractional works · 0.7% of its workSmaller subfields together: 1 fractional works · 0.2% of its workAgricultural and Biological Sciences: 1 fractional works · 0.2% of its workPharmacology, Toxicology and Pharmaceutics: 1 fractional works · 0.1% of its workSocial Sciences: 28 fractional works · 4.9% of its workPsychology: 7 fractional works · 1.3% of its workClinical Psychology: 3 fractional works · 0.5% of its workExperimental and Cognitive Psychology: 2 fractional works · 0.4% of its workSocial Psychology: 1 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.1% of its workDecision Sciences: 7 fractional works · 1.2% of its workStatistics, Probability and Uncertainty: 5 fractional works · 0.9% of its workInformation Systems and Management: 2 fractional works · 0.3% of its workSocial Sciences: 6 fractional works · 1.0% of its workGender Studies: 2 fractional works · 0.3% of its workEducation: 1 fractional works · 0.2% of its workSmaller subfields together: 2 fractional works · 0.4% of its workEconomics, Econometrics and Finance: 3 fractional works · 0.6% of its workEconomics and Econometrics: 3 fractional works · 0.5% of its workSmaller subfields together: 0 fractional works · 0.1% of its workArts and Humanities: 3 fractional works · 0.5% of its workBusiness, Management and Accounting: 2 fractional works · 0.3% of its workManagement of Technology and Innovation: 1 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.0% of its workPhysical Sciences: 21 fractional works · 3.6% of its workEngineering: 13 fractional works · 2.2% of its workBiomedical Engineering: 10 fractional works · 1.7% of its workSmaller subfields together: 3 fractional works · 0.5% of its workComputer Science: 3 fractional works · 0.5% of its workArtificial Intelligence: 1 fractional works · 0.2% of its workComputer Networks and Communications: 1 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.1% of its workPhysics and Astronomy: 2 fractional works · 0.3% of its workRadiation: 1 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.1% of its workEnvironmental Science: 1 fractional works · 0.2% of its workMathematics: 1 fractional works · 0.2% of its workEnergy: 0 fractional works · 0.1% of its workChemical Engineering: 0 fractional works · 0.0% of its workChemistry: 0 fractional works · 0.0% of its workALL ITS WORKIndraprasthaApollo Hospitals573fractional works, 2022-now
Life Sciences9%Physical Sciences4%Health Sciences82%Social Sciences5%

Each ring splits the one inside it: the four domains of science, their fields, their subfields. Size is fractional works in 2022-now. Every slice is a page; the interactive view zooms down to single topics and colours each by how much more of it this institution does than the world.

Its 4 domains and 24 fields, with their numbers
    1. Medicine45078.5%
    2. Health Professions142.4%
    3. Dentistry50.9%
    4. Nursing20.4%
    5. Veterinary10.2%
    1. Biochemistry, Genetics and Molecular Biology315.4%
    2. Neuroscience152.6%
    3. Immunology and Microbiology50.9%
    4. Agricultural and Biological Sciences10.2%
    5. Pharmacology, Toxicology and Pharmaceutics10.1%
    1. Psychology71.3%
    2. Decision Sciences71.2%
    3. Social Sciences61.0%
    4. Economics, Econometrics and Finance30.6%
    5. Arts and Humanities30.5%
    6. Business, Management and Accounting20.3%
    1. Engineering132.2%
    2. Computer Science30.5%
    3. Physics and Astronomy20.3%
    4. Environmental Science10.2%
    5. Mathematics10.2%
    6. Energy00.1%
    7. Chemical Engineering00.0%
    8. Chemistry00.0%
All of science, and how each field's share has moved since 1950: the Science domain explorer

What does Indraprastha Apollo Hospitals specialise in?

Where its research is concentrated relative to its size: Surgery takes 7.2× the share of its output that it takes of world research.

  1. SurgerySubfield · 96.6 works7.2×
← 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: 0.04× its world share, 1 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.01× its world share, 31 worksBiochemistry, Geneti…Immunology and Microbiology: 0.92× its world share, 5 worksImmunology and Micro…Neuroscience: 1.59× its world share, 15 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.27× its world share, 0 worksPharmacology, Toxico…Chemical Engineering: 0.08× its world share, 0 worksChemical EngineeringChemistry: 0.02× its world share, 0 worksChemistryComputer Science: 0.07× its world share, 3 worksComputer ScienceEnergy: 0.06× its world share, 0 worksEnergyEngineering: 0.15× its world share, 13 worksEngineeringEnvironmental Science: 0.05× its world share, 1 worksEnvironmental ScienceMathematics: 0.14× its world share, 1 worksMathematicsPhysics and Astronomy: 0.14× its world share, 2 worksPhysics and AstronomyDentistry: 1.95× its world share, 5 worksDentistryHealth Professions: 0.90× its world share, 14 worksHealth ProfessionsMedicine: 4.08× its world share, 450 worksMedicineNursing: 0.79× its world share, 2 worksNursingVeterinary: 1.61× its world share, 1 worksVeterinaryArts and Humanities: 0.18× its world share, 3 worksArts and HumanitiesBusiness, Management and Accounting: 0.09× its world share, 2 worksBusiness, Management…Decision Sciences: 1.28× its world share, 7 worksDecision SciencesEconomics, Econometrics and Finance: 0.27× its world share, 3 worksEconomics, Econometr…Psychology: 0.42× its world share, 7 worksPsychologySocial Sciences: 0.08× its world share, 6 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Medicine, 4.1×. Every wedge is a field page.

All 24 fields, with their numbers
  1. Medicine4.08×450 works
  2. Dentistry1.95×5 works
  3. Veterinary1.61×1 works
  4. Neuroscience1.59×15 works
  5. Decision Sciences1.28×7 works
  6. Biochemistry, Genetics and Molecular Biology1.01×31 works
  7. Immunology and Microbiology0.92×5 works
  8. Health Professions0.90×14 works
  9. Nursing0.79×2 works
  10. Psychology0.42×7 works
  11. Pharmacology, Toxicology and Pharmaceutics0.27×0 works
  12. Economics, Econometrics and Finance0.27×3 works
  13. Arts and Humanities0.18×3 works
  14. Engineering0.15×13 works
  15. Mathematics0.14×1 works
  16. Physics and Astronomy0.14×2 works
  17. Business, Management and Accounting0.09×2 works
  18. Chemical Engineering0.08×0 works
  19. Social Sciences0.08×6 works
  20. Computer Science0.07×3 works
  21. Energy0.06×0 works
  22. Environmental Science0.05×1 works
  23. Agricultural and Biological Sciences0.04×1 works
  24. Chemistry0.02×0 works

Who are the top researchers at Indraprastha Apollo Hospitals?

Ranked on the quality score, Rajesh Chawla, Raman Puri and Raju Vaishya lead among researchers whose main affiliation is Indraprastha Apollo Hospitals.

  1. 1 Rajesh Chawla India · #852,866 worldwide 3.3k citations · 130 works
  2. 2 Raman Puri India · #1,309,358 worldwide 1.8k citations · 54 works
  3. 3 Raju Vaishya India · #2,651,972 worldwide 64 citations · 41 works
  4. 4 Rajesh Chawla India · #2,746,728 worldwide 482 citations · 71 works
  5. 5 Rakesh Kumar Chopra India · #3,298,106 worldwide 785 citations · 29 works
  6. 6 Aakanksha Chawla India · #3,465,438 worldwide 796 citations · 24 works
  7. 7 Manav Wadhawan India · #3,911,027 worldwide 2.9k citations · 133 works
  8. 8 Ajay Kumar India · #4,040,091 worldwide 939 citations · 50 works
  9. 9 Sarath Gopalan India · #4,045,052 worldwide 1.6k citations · 53 works
  10. 10 Shefali Agrawal India · #4,133,115 worldwide 1.2k citations · 39 works
All ranked researchers at Indraprastha Apollo Hospitals

What are the most cited papers from Indraprastha Apollo Hospitals?

The most cited paper from Indraprastha Apollo Hospitals is "Artificial Intelligence (AI) applications for COVID-19 pandemic" (Raju Vaishya, Mohd Javaid, Ibrahim Haleem Khan et al., 2020), with 1,535 citations. Next come "Global vitamin D status and determinants of hypovitaminosis D" (1,478) and "SARS-CoV-2 B.1.617.2 Delta variant replication and immune evasion" (1,429).

Most cited papers
#PaperReleasedCitations
1 Artificial Intelligence (AI) applications for COVID-19 pandemic Raju Vaishya, Mohd Javaid, Ibrahim Haleem Khan et al. · Diabetes & Metabolic Syndrome Clinical Research & Reviews Open access 14 Apr 2020 1,535
2 Global vitamin D status and determinants of hypovitaminosis D Ambrish Mithal, Denys A. Wahl, J.‐P. Bonjour et al. · Osteoporosis International Open access 18 Jun 2009 1,478
3 SARS-CoV-2 B.1.617.2 Delta variant replication and immune evasion Petra Mlčochová et al. · Nature Open access261 authors 6 Sep 2021 1,429
4 Human Epidermal Growth Factor Receptor 2 (HER2) in Cancers: Overexpression and Therapeutic Implications Nida Iqbal, Nida Iqbal, Naveed Iqbal et al. · Molecular Biology International Open access 7 Sep 2014 1,412
5 Effects of COVID-19 pandemic in daily life Abid Haleem, Mohd Javaid, Raju Vaishya · Current Medicine Research and Practice Open access Mar 2020 945
All 59 most cited papers, with filters and sorting

Which keywords describe research at Indraprastha Apollo Hospitals?

By fractional works in 2022-now, weighted toward what it does more of than the world: Epidemiology, Treatment, Complications, Surgical Management, Diagnosis, Prognostic Factors, Medical Education and Genetic Mutations.

▲ 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-now 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. Epidemiology73▲ 3.2×87 topics
  2. Treatment30▲ 4.3×37 topics
  3. Diagnosis26▲ 4.9×30 topics
  4. Inflammation26▲ 2.1×49 topics
  5. Complications23▲ 8.0×16 topics
  6. Surgical Management21▲ 9.2×18 topics
  7. Prognostic Factors18▲ 7.4×14 topics
  8. Management18▲ 4.0×26 topics
  9. Quality of Life18▲ 2.1×33 topics
  10. Genetic Mutations17▲ 6.6×20 topics
  11. Medical Education16▲ 11×9 topics
  12. Neurological Disorders15▲ 4.6×15 topics
  13. Cardiovascular Disease15▲ 2.3×26 topics
  14. Immunotherapy15▲ 3.5×15 topics
  15. Primary Care14▲ 6.8×10 topics
  16. Revision Surgery14▲ 19×2 topics
  17. Total Hip Replacement14▲ 19×2 topics
  18. Chemotherapy14▲ 3.4×21 topics
  19. Clinical Practice Guidelines13▲ 4.2×14 topics
  20. Metabolic Syndrome13▲ 2.8×21 topics
  21. Diabetes12▲ 4.3×13 topics
  22. Liver Transplantation12▲ 18×4 topics
  23. Health-related Quality of Life12▲ 8.5×5 topics
  24. Training11▲ 9.2×3 topics
  25. Guidelines11▲ 4.0×12 topics
  26. Curriculum10▲ 18×3 topics
  27. Clinical Skills10▲ 69×2 topics
  28. Rheumatology10▲ 46×2 topics
  29. Musculoskeletal Medicine10▲ 123×1 topic
  30. Orthopaedics10▲ 123×1 topic
  31. Pathophysiology10▲ 5.9×9 topics
  32. Surgery10▲ 4.8×11 topics
  33. Graft Survival10▲ 19×2 topics
  34. Patient Satisfaction9▲ 5.2×8 topics
  35. Prenatal Diagnosis9▲ 11×6 topics
  36. Arthroplasty9▲ 16×2 topics
  37. Autoantibodies8▲ 6.2×7 topics
  38. Outcomes8▲ 17×1 topic
  39. Total Knee Replacement8▲ 21×1 topic
  40. Glycemic Control8▲ 8.3×4 topics

Which research topics does Indraprastha Apollo Hospitals publish most on?

By volume in 2022-now: Musculoskeletal Disorders and Rehabilitation, Total Knee Arthroplasty Outcomes, Organ Transplantation Techniques and Outcomes and Orthopaedic implants and arthroplasty.

Musculoskeletal Disorders and Rehabilitation: 10 fractional worksTotal Knee Arthroplasty Outcomes: 8 fractional worksOrgan Transplantation Te…6Organ Transplantation Techniques and Outcomes: 6 fractional worksOrthopaedic implants and…6Orthopaedic implants and arthroplasty: 6 fractional worksHemoglobinopathies and Related Disorders: 6 fractional worksLiver Disease and Transplantation: 5 fractional worksAcute Lymphoblastic Leuk…4Acute Lymphoblastic Leukemia research: 4 fractional worksOrthopedic Infections an…4Orthopedic Infections and Treatments: 4 fractional worksHealth and Medical Resea…4Health and Medical Research Impacts: 4 fractional worksMeningioma and schwannom…4Meningioma and schwannoma management: 4 fractional works
RehabilitationSurgeryGeneticsHepatology2 others

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

  1. 1 Musculoskeletal Disorders and Rehabilitation Rehabilitation 10 works
  2. 2 Total Knee Arthroplasty Outcomes Surgery 8 works
  3. 3 Organ Transplantation Techniques and Outcomes Surgery 6 works
  4. 4 Orthopaedic implants and arthroplasty Surgery 6 works
  5. 5 Hemoglobinopathies and Related Disorders Genetics 6 works
  6. 6 Liver Disease and Transplantation Hepatology 5 works
  7. 7 Acute Lymphoblastic Leukemia research Public Health, Environmental and Occupational Health 4 works
  8. 8 Orthopedic Infections and Treatments Surgery 4 works
  9. 9 Health and Medical Research Impacts Public Health, Environmental and Occupational Health 4 works
  10. 10 Meningioma and schwannoma management Epidemiology 4 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 available49.1%not open50.9%

World: 40% of research is openly available.

with international co-authors7.7%domestic only92.3%

World: 18% is written across borders.

How has Indraprastha Apollo Hospitals's research output changed?

Output in 2022-2025 was 4% higher than in 2018-2021.

still counting1990200020102020
grewheldshrank

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

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Indraprastha Apollo Hospitals as a percentage of every work published that year, 0.0030% in 2024.

still counting0.0020%0.0040%0.0060%Indraprastha Apollo Hospitals0.0027% in 202519801990200020102020

Fractional works of Indraprastha Apollo Hospitals over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Year by year, against all institutions in the same year.

still counting5%10%15%all institutions10.0% in 2025Indraprastha Apollo Hospitals5.1% in 202520102020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 7.3% in 2020.

Other research institutions in New Delhi

All research institutions in New Delhi

Share Indraprastha Apollo Hospitals's ranking

Indraprastha Apollo Hospitals on Science Explorer

A card with Indraprastha Apollo Hospitals's standing and the fields it leads in, for a post or a slide. A link to this page previews as the same card.

Download the card

1200 × 630 PNG, sized for social posts, drawn from the latest snapshot.

Badges for a website1Each links back here and updates with every snapshot

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners have tabs of their own, above.

Discussion

Ask a question or share a note about Indraprastha Apollo Hospitals. Posts are plain text and can be reported.