Scientist and University Rankings 2025
North America 357 Scientists Subject Rankings - 2025
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 211 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 years. As of Jun 18, 2025, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (0) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
* Total H Index Rankings
Rankings
48,535
World Rank
19,222
Country Rank
7
University
Ranking Based On Selection:
26
* Total H Index Rankings
Rankings
52,790
World Rank
20,711
Country Rank
45
University
Ranking Based On Selection:
27
Medical and Health Sciences / Geriatrics
Geriatrics | Patient Centered Care | Multimorbidity | Population Health System
Geriatrics | Patient Centered Care | Multimorbidity | Population Health System
H-Index Metrics
-
H-Index60
-
i10 Index192
-
Citation Counts9,913
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* Total H Index Rankings
Rankings
52,832
World Rank
20,723
Country Rank
21
University
Ranking Based On Selection:
28
* Total H Index Rankings
Rankings
59,670
World Rank
23,063
Country Rank
243
University
Ranking Based On Selection:
29
* Total H Index Rankings
Rankings
61,729
World Rank
23,733
Country Rank
158
University
Ranking Based On Selection:
30
* Total H Index Rankings
Rankings
63,420
World Rank
24,338
Country Rank
271
University
Ranking Based On Selection:
31
* Total H Index Rankings
Rankings
74,129
World Rank
3,396
Country Rank
128
University
Ranking Based On Selection:
32
* Total H Index Rankings
Rankings
79,915
World Rank
29,601
Country Rank
57
University
Ranking Based On Selection:
33
Medical and Health Sciences / Geriatrics
Geriatrics | Geriatric Psychiatry | Alzheimer's Disease | Dementia | Lewy Body Diseas
Geriatrics | Geriatric Psychiatry | Alzheimer's Disease | Dementia | Lewy Body Diseas
H-Index Metrics
-
H-Index52
-
i10 Index127
-
Citation Counts16,116
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* Total H Index Rankings
Rankings
80,527
World Rank
29,843
Country Rank
69
University
Ranking Based On Selection:
34
Medical and Health Sciences / Geriatrics
Cardiology | Healthcare disparities | Cardiovascular preventio
Cardiology | Healthcare disparities | Cardiovascular preventio
H-Index Metrics
-
H-Index51
-
i10 Index159
-
Citation Counts86,242
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* Total H Index Rankings
Rankings
80,875
World Rank
3,681
Country Rank
170
University
Ranking Based On Selection:
35
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* Total H Index Rankings
Rankings
84,045
World Rank
30,893
Country Rank
826
University
Ranking Based On Selection:
36
Medical and Health Sciences / Geriatrics
clinical decision support | medical decision making | geriatrics | multimorbidit
clinical decision support | medical decision making | geriatrics | multimorbidit
H-Index Metrics
-
H-Index51
-
i10 Index126
-
Citation Counts9,433
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* Total H Index Rankings
Rankings
86,252
World Rank
31,581
Country Rank
327
University
Ranking Based On Selection:
37
* Total H Index Rankings
Rankings
87,945
World Rank
32,082
Country Rank
158
University
Ranking Based On Selection:
38
* Total H Index Rankings
Rankings
88,192
World Rank
32,158
Country Rank
51
University
Ranking Based On Selection:
39
* Total H Index Rankings
Rankings
93,801
World Rank
34,018
Country Rank
96
University
Ranking Based On Selection:
40
Medical and Health Sciences / Geriatrics
geriatric oncology | gastrointestinal oncology | geriatric assessment | sarcopenia | frailt
geriatric oncology | gastrointestinal oncology | geriatric assessment | sarcopenia | frailt
H-Index Metrics
-
H-Index48
-
i10 Index136
-
Citation Counts9,764
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* Total H Index Rankings
Rankings
94,905
World Rank
4,314
Country Rank
256
University
Ranking Based On Selection:
41
Medical and Health Sciences / Geriatrics
Perioperative Vascular Medicine | Internal Medicine | Thrombosis & Haemostasis | Geriatrics | Research Method
Perioperative Vascular Medicine | Internal Medicine | Thrombosis & Haemostasis | Geriatrics | Research Method
H-Index Metrics
-
H-Index48
-
i10 Index105
-
Citation Counts11,111
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* Total H Index Rankings
Rankings
95,093
World Rank
4,326
Country Rank
95
University
Ranking Based On Selection:
42
* Total H Index Rankings
Rankings
99,043
World Rank
35,605
Country Rank
55
University
Ranking Based On Selection:
43
* Total H Index Rankings
Rankings
100,996
World Rank
4,571
Country Rank
103
University
Ranking Based On Selection:
44
* Total H Index Rankings
Rankings
101,582
World Rank
36,312
Country Rank
23
University
Ranking Based On Selection:
45
Medical and Health Sciences / Geriatrics
Age-Related Chronic Disability | Challenges of Very Late Life | Paid and Unpaid Caregivin
Age-Related Chronic Disability | Challenges of Very Late Life | Paid and Unpaid Caregivin
H-Index Metrics
-
H-Index47
-
i10 Index103
-
Citation Counts7,946
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* Total H Index Rankings
Rankings
104,787
World Rank
37,334
Country Rank
492
University
Ranking Based On Selection:
46
* Total H Index Rankings
Rankings
104,826
World Rank
4,754
Country Rank
108
University
Ranking Based On Selection:
47
Medical and Health Sciences / Geriatrics
Environmental Gerontology | Design for People with Dementia | Environment and Active Livin
Environmental Gerontology | Design for People with Dementia | Environment and Active Livin
H-Index Metrics
-
H-Index46
-
i10 Index96
-
Citation Counts8,031
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* Total H Index Rankings
Rankings
110,248
World Rank
38,932
Country Rank
354
University
Ranking Based On Selection:
48
Medical and Health Sciences / Geriatrics
Community engagement | stakeholder engagement | health equity | geriatrics | cognitive impairmen
Community engagement | stakeholder engagement | health equity | geriatrics | cognitive impairmen
H-Index Metrics
-
H-Index45
-
i10 Index92
-
Citation Counts8,550
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* Total H Index Rankings
Rankings
115,658
World Rank
5,219
Country Rank
122
University
Ranking Based On Selection:
49
Medical and Health Sciences / Geriatrics
psychology | psychometrics | mental health | life course epidemiolog
psychology | psychometrics | mental health | life course epidemiolog
H-Index Metrics
-
H-Index44
-
i10 Index81
-
Citation Counts10,371
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* Total H Index Rankings
Rankings
123,117
World Rank
5,509
Country Rank
257
University
Ranking Based On Selection:
50
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