Citation Rankings
Highly Cited Researchers
World Highly Cited Researchers CitationMedical and Health Sciences / Geriatrics Rankings 2025
The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection :26
geriatric heart failure
multiple chronic conditions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,084
17,728
0.570
* Total Citation Counts Rankings
Ranking Based On Selection :27
Stroke
Geriatric Medicine
Randomised controlled trials
General (Internal) Medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,782
15,695
0.510
* Total Citation Counts Rankings
Ranking Based On Selection :28
Neuroinflammation
Alzheimer's disease
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,758
7,068
0.230
* Total Citation Counts Rankings
Ranking Based On Selection :29
geriatric oncology
lung cancer
psycho-oncology
Immigrant health
health equity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,373
7,321
0.241
* Total Citation Counts Rankings
Ranking Based On Selection :30
affective neuroscience
aging
locus coeruleus-norepinephrine system
heart rate variability
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,777
12,818
0.445
* Total Citation Counts Rankings
Ranking Based On Selection :31
Gerontology
Caregiving
Geriatrics
Health communication
Health expectancy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,250
23,102
0.818
* Total Citation Counts Rankings
Ranking Based On Selection :32
Gerontology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,084
3,783
0.135
* Total Citation Counts Rankings
Ranking Based On Selection :33
Geriatrics
Gerontology
Health service research
frailty
sarcopenia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,888
20,868
0.748
* Total Citation Counts Rankings
Ranking Based On Selection :34
Geriatric Medicine
Ageing
COVID-19
Hyponatremia
Clinical Pharmacology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,180
24,040
0.918
* Total Citation Counts Rankings
Ranking Based On Selection :35
gerontology
senescence
ageing
trajectories
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,410
19,128
0.753
* Total Citation Counts Rankings
Ranking Based On Selection :36
geriatrics
gerontology
nutrition
dementia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,068
13,133
0.524
* Total Citation Counts Rankings
Ranking Based On Selection :37
Alzheimer's disease
Aging
Neuropsychology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,758
12,202
0.493
* Total Citation Counts Rankings
Ranking Based On Selection :38
gerontology
primary health care.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,588
11,954
0.486
* Total Citation Counts Rankings
Ranking Based On Selection :39
Ageing
Cancer
Musculoskeletal Health
Physical Function
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,094
9,985
0.414
* Total Citation Counts Rankings
Ranking Based On Selection :40
Gerontology
Aging-Related Preparation & Planning
Interventions for Caregivers
Vision-Loss
Health Disparities
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,961
9,278
0.387
* Total Citation Counts Rankings
Ranking Based On Selection :41
Depression
geriatrics
health services research
mixed methods
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,562
6,768
0.287
* Total Citation Counts Rankings
Ranking Based On Selection :42
Geriatric Medicine
Clinical Pharmacology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,516
13,816
0.614
* Total Citation Counts Rankings
Ranking Based On Selection :43
Geriatric Medicine
Outcome Research
Dementia
Pneumonia
Cardiovascular Epidemiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,026
14,289
0.649
* Total Citation Counts Rankings
Ranking Based On Selection :44
geriatria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,909
13,819
0.631
* Total Citation Counts Rankings
Ranking Based On Selection :45
Metabolism
Muscle
Protein
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,142
7,251
0.343
* Total Citation Counts Rankings
Ranking Based On Selection :46
aging
geriatrics
cardiovascular disease
quality improvement
health disparities
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,391
7,104
0.348
* Total Citation Counts Rankings
Ranking Based On Selection :47
geriatric oncology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,821
7,509
0.379
* Total Citation Counts Rankings
Ranking Based On Selection :48
palliative care
geriatrics
multimorbidity
pain
quality of life
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,820
11,903
0.601
* Total Citation Counts Rankings
Ranking Based On Selection :49
geriatric medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,072
14,561
0.763
* Total Citation Counts Rankings
Ranking Based On Selection :50
geriatric syndromes
incontinence
delirium
falls
osteoporosis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,051
3,875
0.203
* Total Citation Counts Rankings
Rankings
21,080
9,758
10
Ranking Based On Selection: 26
Ali Ahmed
US Veterans Affairs
Washington, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,084
17,728
0.570
geriatric heart failure
multiple chronic conditions
* Total Citation Counts Rankings
Rankings
21,372
911
78
Ranking Based On Selection: 27
Richard Lindley
University of Sydney
Sydney, Australia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,782
15,695
0.510
Stroke
Geriatric Medicine
Randomised controlled trials
General (Internal) Medicine
* Total Citation Counts Rankings
Rankings
21,401
9,902
8
Ranking Based On Selection: 28
W Sue Griffin
University of Arkansas for Medical Sciences
Little Rock, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,758
7,068
0.230
Neuroinflammation
Alzheimer's disease
* Total Citation Counts Rankings
Rankings
21,803
900
13
Ranking Based On Selection: 29
Bonnie Leung
British Columbia Cancer Agency
Vancouver, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,373
7,321
0.241
geriatric oncology
lung cancer
psycho-oncology
Immigrant health
health equity
* Total Citation Counts Rankings
Rankings
23,773
10,945
135
Ranking Based On Selection: 30
Mara Mather
University of Southern California
Los Angeles, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,777
12,818
0.445
affective neuroscience
aging
locus coeruleus-norepinephrine system
heart rate variability
* Total Citation Counts Rankings
Rankings
24,472
152
77
Ranking Based On Selection: 31
Rahul Malhotra
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,250
23,102
0.818
Gerontology
Caregiving
Geriatrics
Health communication
Health expectancy
* Total Citation Counts Rankings
Rankings
24,689
11,337
141
Ranking Based On Selection: 32
Edward L Schneider
University of Southern California
Los Angeles, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,084
3,783
0.135
* Total Citation Counts Rankings
Rankings
24,931
89
2
Ranking Based On Selection: 33
Liang-Kung Chen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,888
20,868
0.748
Geriatrics
Gerontology
Health service research
frailty
sarcopenia
* Total Citation Counts Rankings
Rankings
27,405
2,372
24
Ranking Based On Selection: 34
Roy L Soiza
University of Aberdeen
Aberdeen, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,180
24,040
0.918
Geriatric Medicine
Ageing
COVID-19
Hyponatremia
Clinical Pharmacology
* Total Citation Counts Rankings
Rankings
28,647
745
61
Ranking Based On Selection: 35
Andrea B Maier
VU University of Amsterdam
Amsterdam, Netherlands
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,410
19,128
0.753
gerontology
senescence
ageing
trajectories
* Total Citation Counts Rankings
Rankings
29,243
261
66
Ranking Based On Selection: 36
T Kwok
Chinese University of Hong Kong
Central Ave, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,068
13,133
0.524
geriatrics
gerontology
nutrition
dementia
* Total Citation Counts Rankings
Rankings
29,794
1,235
39
Ranking Based On Selection: 37
Belleville Sylvie
Université de Montréal
Montréal, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,758
12,202
0.493
Alzheimer's disease
Aging
Neuropsychology
* Total Citation Counts Rankings
Rankings
30,101
101
39
Ranking Based On Selection: 38
NM Kerse
University of Auckland
Auckland, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,588
11,954
0.486
gerontology
primary health care.
* Total Citation Counts Rankings
Rankings
31,034
1,360
10
Ranking Based On Selection: 39
Dennis R Taaffe
Edith Cowan University
Joondalup, Australia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,094
9,985
0.414
Ageing
Cancer
Musculoskeletal Health
Physical Function
* Total Citation Counts Rankings
Rankings
31,277
14,154
51
Ranking Based On Selection: 40
Silvia Sörensen
University of Rochester
Rochester, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,961
9,278
0.387
Gerontology
Aging-Related Preparation & Planning
Interventions for Caregivers
Vision-Loss
Health Disparities
* Total Citation Counts Rankings
Rankings
32,051
14,471
182
Ranking Based On Selection: 41
Joseph J Gallo
Johns Hopkins University
Baltimore, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,562
6,768
0.287
Depression
geriatrics
health services research
mixed methods
* Total Citation Counts Rankings
Rankings
34,125
1,496
133
Ranking Based On Selection: 42
Sarah Hilmer
University of Sydney
Sydney, Australia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,516
13,816
0.614
Geriatric Medicine
Clinical Pharmacology
* Total Citation Counts Rankings
Rankings
35,227
3,088
31
Ranking Based On Selection: 43
Phyo Kyaw Myint
University of Aberdeen
Aberdeen, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,026
14,289
0.649
Geriatric Medicine
Outcome Research
Dementia
Pneumonia
Cardiovascular Epidemiology
* Total Citation Counts Rankings
Rankings
35,497
94
1
Ranking Based On Selection: 44
Luis Miguel Gutierrez Robledo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,909
13,819
0.631
* Total Citation Counts Rankings
Rankings
37,334
16,633
16
Ranking Based On Selection: 45
Arny Ferrando
University of Arkansas for Medical Sciences
Little Rock, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,142
7,251
0.343
* Total Citation Counts Rankings
Rankings
39,297
17,428
37
Ranking Based On Selection: 46
Richard M Allman
George Washington University
Washington, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,391
7,104
0.348
aging
geriatrics
cardiovascular disease
quality improvement
health disparities
* Total Citation Counts Rankings
Rankings
40,909
18,052
12
Ranking Based On Selection: 47
Martine Extermann
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,821
7,509
0.379
* Total Citation Counts Rankings
Rankings
40,911
18,053
909
Ranking Based On Selection: 48
Christine Ritchie
Harvard University
Cambridge, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,820
11,903
0.601
palliative care
geriatrics
multimorbidity
pain
quality of life
* Total Citation Counts Rankings
Rankings
43,035
3,754
73
Ranking Based On Selection: 49
Andrew Clegg
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,072
14,561
0.763
* Total Citation Counts Rankings
Rankings
43,082
18,906
199
Ranking Based On Selection: 50
Neil Resnick
University of Pittsburgh
Pittsburgh, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,051
3,875
0.203
geriatric syndromes
incontinence
delirium
falls
osteoporosis