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Hospital / health system · Houston · United States

Memorial Hermann

In research, Memorial Hermann stands highest in Health Sciences (#3,437 of 11,982 worldwide) and Medicine (#3,145 of 10,443 worldwide), 2022–2025. Relative to its size it is most specialised in Cardiology and Cardiovascular Medicine and Surgery — Cardiology and Cardiovascular Medicine is 7.9× its share of world research.

memorialhermann.orgROR OpenAlex
World rank, 2022–2025
#12,065
of 28,054 · #7,564 all time
Rank in United States
#1,642
of 4,192
Research works
1.9k
▲ 26% vs 2013–17
Citations
42k
21.8 per fractional work
Top-10% rate
11.8%
record average 16.5%
Open access
32%
world 28%

What is Memorial Hermann 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 #3,437 of 11,982 12.1%288 #1392
MedicineField #3,145 of 10,443 12.0%266 #2069

Each strip is that field’s whole ranked pool, with the notch where Memorial Hermann 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).

What does Memorial Hermann specialise in?

Where its research is concentrated relative to its size: Cardiology and Cardiovascular Medicine takes 7.9× the share of its output that it takes of world research.

  1. Cardiology and Cardiovascular MedicineSubfield · 30.3 works7.9×
  2. SurgerySubfield · 56.6 works6.7×
← 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: 0.11× its world share, 2 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.88× its world share, 17 worksBiochemistry, Geneti…Immunology and Microbiology: 1.01× its world share, 4 worksImmunology and Micro…Neuroscience: 1.17× its world share, 7 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.53× its world share, 1 worksPharmacology, Toxico…Chemical Engineering: 0.01× its world share, 0 worksChemical EngineeringChemistry: 0.09× its world share, 0 worksChemistryComputer Science: 0.09× its world share, 2 worksComputer ScienceEarth and Planetary Sciences: 0.01× its world share, 0 worksEarth and Planetary …Engineering: 0.19× its world share, 10 worksEngineeringEnvironmental Science: 0.04× its world share, 1 worksEnvironmental ScienceMaterials Science: 0.03× its world share, 0 worksMaterials ScienceMathematics: 0.18× its world share, 1 worksMathematicsPhysics and Astronomy: 0.02× its world share, 0 worksPhysics and AstronomyDentistry: 0.69× its world share, 1 worksDentistryHealth Professions: 1.72× its world share, 16 worksHealth ProfessionsMedicine: 3.81× its world share, 266 worksMedicineNursing: 2.08× its world share, 4 worksNursingArts and Humanities: 0.58× its world share, 6 worksArts and HumanitiesBusiness, Management and Accounting: 0.17× its world share, 2 worksBusiness, Management…Decision Sciences: 0.03× its world share, 0 worksDecision SciencesEconomics, Econometrics and Finance: 0.31× its world share, 2 worksEconomics, Econometr…Psychology: 0.60× its world share, 7 worksPsychologySocial Sciences: 0.27× its world share, 12 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Medicine, 3.8×. Every wedge is a field page.

Who are the top researchers at Memorial Hermann?

Ranked on the composite score, Hazim J. Safi, Nils P. Johnson and Matthew T. Harting lead among researchers whose main affiliation is Memorial Hermann.

  1. 1 Hazim J. Safi United States · #12,418 worldwide 631 citations · 78 works
  2. 2 Nils P. Johnson United States · #143,693 worldwide 187 citations · 49 works
  3. 3 Matthew T. Harting United States · #222,599 worldwide 53 citations · 27 works
  4. 4 Eyal Porat United States · #443,921 worldwide 65 citations · 16 works
  5. 5 Arnaud Villani United States · #559,849 worldwide 0 citations · 20 works
  6. 6 Tam T. Huynh United States · #674,366 worldwide 42 citations · 20 works
  7. 7 L. Lamki United States · #847,740 worldwide 59 citations · 30 works
  8. 8 Bruce J. Barron United States · #976,199 worldwide 20 citations · 23 works
  9. 9 Jorge D. Salazar United States · #1,205,167 worldwide 18 citations · 25 works
  10. 10 K Kerfoot United States · #1,338,189 worldwide 6 citations · 19 works
All ranked researchers at Memorial Hermann

Which keywords describe research at Memorial Hermann?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Epidemiology, Neurodevelopmental Outcomes, Congenital Heart Disease, Cardiac Surgery, Mortality Risk, Risk Factors, Adult Congenital Heart Disease and Pulmonary Valve Replacement.

▲ 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. Epidemiology37▲ 2.6×84 topics
  2. Risk Factors19▲ 4.7×21 topics
  3. Neurodevelopmental Outcomes18▲ 27×5 topics
  4. Congenital Heart Disease17▲ 55×3 topics
  5. Cardiac Surgery16▲ 62×2 topics
  6. Mortality Risk15▲ 18×4 topics
  7. Adult Congenital Heart Disease15▲ 76×1 topic
  8. Pulmonary Valve Replacement15▲ 76×1 topic
  9. Myocardial Infarction14▲ 17×6 topics
  10. Prenatal Diagnosis13▲ 25×6 topics
  11. Treatment13▲ 2.9×26 topics
  12. Diagnosis12▲ 3.7×25 topics
  13. Heart Failure12▲ 7.8×11 topics
  14. Complications12▲ 6.5×16 topics
  15. Extracorporeal Membrane Oxygenation12▲ 41×2 topics
  16. Guidelines11▲ 6.5×12 topics
  17. Percutaneous Coronary Intervention10▲ 21×4 topics
  18. Genetic Mutations10▲ 6.2×15 topics
  19. Echocardiography9▲ 9.2×7 topics
  20. Surgical Management9▲ 5.8×12 topics
  21. Maternal Mortality8▲ 10×5 topics
  22. Fetal Surgery8▲ 40×2 topics
  23. Pulmonary Hypertension8▲ 15×3 topics
  24. Preterm Infants7▲ 16×4 topics
  25. Dilated Cardiomyopathy7▲ 28×2 topics
  26. Neuroprotection7▲ 5.6×9 topics
  27. Surgical Aortic-Valve Replacement7▲ 26×1 topic
  28. Transcatheter Aortic-Valve Replacement7▲ 26×1 topic
  29. Clinical Outcomes7▲ 8.6×4 topics
  30. Thrombosis7▲ 6.6×4 topics
  31. Endothelial Dysfunction6▲ 7.6×6 topics
  32. Surgical Repair6▲ 43×1 topic
  33. Ventricular Reconstruction6▲ 43×1 topic
  34. Congenital Diaphragmatic Hernia6▲ 57×1 topic
  35. Lung Volume6▲ 57×1 topic
  36. Prevention Guidelines6▲ 16×2 topics
  37. Ischemic Stroke6▲ 11×3 topics
  38. Cardiac Imaging6▲ 13×3 topics
  39. Catheter Ablation6▲ 13×2 topics
  40. Revascularization6▲ 10×2 topics

Which research topics does Memorial Hermann publish most on?

By volume in 2022–2025: Congenital Heart Disease Studies, Cardiac Valve Diseases and Treatments, Cardiac Structural Anomalies and Repair and Congenital Diaphragmatic Hernia Studies.

Congenital Heart Disease…15Congenital Heart Disease Studies: 15 fractional worksCardiac Valve Diseases and Treatments: 7 fractional worksCardiac Structural Anomalies and Repair: 6 fractional worksCongenital Diaphragmatic Hernia Studies: 6 fractional worksMechanical Circulatory Support Devices: 5 fractional worksAcute Ischemic Stroke Management: 5 fractional worksCardiac Arrhythmias and …5Cardiac Arrhythmias and Treatments: 5 fractional worksCardiac Imaging and Diag…5Cardiac Imaging and Diagnostics: 5 fractional worksNeonatal Respiratory Hea…4Neonatal Respiratory Health Research: 4 fractional worksCoronary Interventions a…4Coronary Interventions and Diagnostics: 4 fractional works
EpidemiologyCardiology and Cardiovascular MedicineSurgeryBiomedical Engineering2 others

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

  1. 1 Congenital Heart Disease Studies Epidemiology 15 works
  2. 2 Cardiac Valve Diseases and Treatments Cardiology and Cardiovascular Medicine 7 works
  3. 3 Cardiac Structural Anomalies and Repair Surgery 6 works
  4. 4 Congenital Diaphragmatic Hernia Studies Surgery 6 works
  5. 5 Mechanical Circulatory Support Devices Biomedical Engineering 5 works
  6. 6 Acute Ischemic Stroke Management Epidemiology 5 works
  7. 7 Cardiac Arrhythmias and Treatments Cardiology and Cardiovascular Medicine 5 works
  8. 8 Cardiac Imaging and Diagnostics Radiology, Nuclear Medicine and Imaging 5 works
  9. 9 Neonatal Respiratory Health Research Pulmonary and Respiratory Medicine 4 works
  10. 10 Coronary Interventions and Diagnostics Surgery 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 available31.5%not open68.5%

World: 28% of research is openly available.

with international co-authors10.5%domestic only89.5%

World: 19% is written across borders.

How has Memorial Hermann's research output changed?

Output in 2018–2022 was 26% 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 Houston

All research institutions in Houston

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.