World Scientist and University Rankings 2025

United States Medical and Health Sciences / Neurosurgery 1.125 Scientists Subject Rankings - 2025

The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 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 yearsAs of Jan 30, 2025, the rankings are determined according to the Total H IndexBETA 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 (873.690) 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 1.125 scientists, 1 country, 163 institution
* Total H IndexRankings
Ranking Based On Selection: 1
Edward Oldfield
neurosurgery
neurology
endocrinology
Metrics
H-Index
i10 Index
Citation Counts
129
461
60,947
* Total H IndexRankings
Ranking Based On Selection: 2
Van Meir Erwin G
Cancer Research
Oncology
brain tumors
neurooncology
Metrics
H-Index
i10 Index
Citation Counts
112
219
78,906
* Total H IndexRankings
Ranking Based On Selection: 3
Geoffrey Manley
traumatic brain injury
precision medicine
neurosurgery
neurocritical care
Metrics
H-Index
i10 Index
Citation Counts
110
324
52,100
* Total H IndexRankings
Ranking Based On Selection: 4
John H Sampson
Neurosurgery
Immunotherapy
Neuro-oncology
Immunology
Metrics
H-Index
i10 Index
Citation Counts
107
319
40,994
* Total H IndexRankings
Ranking Based On Selection: 5
James Connor
brain iron metabolism
mechanisms of iron homeostasis in the brain
Metrics
H-Index
i10 Index
Citation Counts
105
332
39,539
* Total H IndexRankings
Ranking Based On Selection: 8
Douglas H Smith
Traumatic Brain Injury
Concussion
Neurorepair
Diffuse Axonal Injury
Metrics
H-Index
i10 Index
Citation Counts
100
247
36,372
* Total H IndexRankings
Ranking Based On Selection: 9
Bob S Carter
Neurosurgery
Exosomes and Biomarkers
Brain Tumors
Brain Aneurysms and AVMs
CAR-T cells
Metrics
H-Index
i10 Index
Citation Counts
98
254
43,467
* Total H IndexRankings
Ranking Based On Selection: 10
Issam Awad
Neurosurgery
stroke
vascular biology
cerebral hemorrhage
vascular malformations of the brain
Metrics
H-Index
i10 Index
Citation Counts
98
315
104,882

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* Total H IndexRankings
Ranking Based On Selection: 11
Michael Vogelbaum
Neurosurgical Oncology
Neurosurgery
Drug Delivery Technology
Clinical Trials
Metrics
H-Index
i10 Index
Citation Counts
95
277
36,146
* Total H IndexRankings
Ranking Based On Selection: 13
Cameron Brennan
Neurosurgery
Neuro-oncology
Brain Tumors
Cancer Genomics
Metrics
H-Index
i10 Index
Citation Counts
91
145
76,912
* Total H IndexRankings
Ranking Based On Selection: 15
Robert M Starke
Neurosurgery
Endovascular
Metrics
H-Index
i10 Index
Citation Counts
89
422
53,044
* Total H IndexRankings
Ranking Based On Selection: 16
Edward C Benzel
Neurosurgery
Spine Surgery
Cervical Deformity
Spondylosis
Metrics
H-Index
i10 Index
Citation Counts
89
409
29,117
* Total H IndexRankings
Ranking Based On Selection: 17
Neil A. Martin
Quality/Value
neurosurgery
stroke
Metrics
H-Index
i10 Index
Citation Counts
89
247
34,056
* Total H IndexRankings
Ranking Based On Selection: 20
Christopher S Ogilvy
Neurosurgery
Cerebrovacular surgery
Endovascular
Metrics
H-Index
i10 Index
Citation Counts
85
378
33,477
* Total H IndexRankings
Ranking Based On Selection: 23
Linda Liau
Brain Tumors
Brain Cancer
Neurosurgical Oncology
Metrics
H-Index
i10 Index
Citation Counts
83
199
37,728
* Total H IndexRankings
Ranking Based On Selection: 25
Pascal Jabbour
Neurosurgery
Stroke
Aneurysms
AVMs
Intra-Arterial Chemotherapy
Metrics
H-Index
i10 Index
Citation Counts
79
398
25,142
* Total H Index Rankings
Rankings
Ranking Based On Selection: 1
Edward Oldfield
Metrics
H-Index
i10-Index
Citation Counts
129
461
60,947
* Total H Index Rankings
Rankings
Ranking Based On Selection: 2
Van Meir Erwin G
Metrics
H-Index
i10-Index
Citation Counts
112
219
78,906
Cancer Research
Oncology
brain tumors
neurooncology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 3
Geoffrey Manley
Metrics
H-Index
i10-Index
Citation Counts
110
324
52,100
traumatic brain injury
precision medicine
neurosurgery
neurocritical care
* Total H Index Rankings
Rankings
Ranking Based On Selection: 4
John H Sampson
Metrics
H-Index
i10-Index
Citation Counts
107
319
40,994
Neurosurgery
Immunotherapy
Neuro-oncology
Immunology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 5
James Connor
Metrics
H-Index
i10-Index
Citation Counts
105
332
39,539
brain iron metabolism
mechanisms of iron homeostasis in the brain
* Total H Index Rankings
Rankings
Ranking Based On Selection: 6
Clark C Chen
Metrics
H-Index
i10-Index
Citation Counts
103
559
47,555
* Total H Index Rankings
Rankings
Ranking Based On Selection: 7
Claudia Robertson
Metrics
H-Index
i10-Index
Citation Counts
102
315
37,789
* Total H Index Rankings
Rankings
Ranking Based On Selection: 8
Douglas H Smith
Metrics
H-Index
i10-Index
Citation Counts
100
247
36,372
Traumatic Brain Injury
Concussion
Neurorepair
Diffuse Axonal Injury
* Total H Index Rankings
Rankings
Ranking Based On Selection: 9
Bob S Carter
Metrics
H-Index
i10-Index
Citation Counts
98
254
43,467
Neurosurgery
Exosomes and Biomarkers
Brain Tumors
Brain Aneurysms and AVMs
CAR-T cells
* Total H Index Rankings
Rankings
Ranking Based On Selection: 10
Issam Awad
Metrics
H-Index
i10-Index
Citation Counts
98
315
104,882
Neurosurgery
stroke
vascular biology
cerebral hemorrhage
vascular malformations of the brain

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

* Total H Index Rankings
Rankings
Ranking Based On Selection: 11
Michael Vogelbaum
Metrics
H-Index
i10-Index
Citation Counts
95
277
36,146
Neurosurgical Oncology
Neurosurgery
Drug Delivery Technology
Clinical Trials
* Total H Index Rankings
Rankings
Ranking Based On Selection: 12
Jason Sheehan
Metrics
H-Index
i10-Index
Citation Counts
93
489
31,311
* Total H Index Rankings
Rankings
Ranking Based On Selection: 13
Cameron Brennan
Metrics
H-Index
i10-Index
Citation Counts
91
145
76,912
Neurosurgery
Neuro-oncology
Brain Tumors
Cancer Genomics
* Total H Index Rankings
Rankings
Ranking Based On Selection: 14
Edward Neuwelt
Metrics
H-Index
i10-Index
Citation Counts
90
289
30,539
* Total H Index Rankings
Rankings
Ranking Based On Selection: 15
Robert M Starke
Metrics
H-Index
i10-Index
Citation Counts
89
422
53,044
* Total H Index Rankings
Rankings
Ranking Based On Selection: 16
Edward C Benzel
Metrics
H-Index
i10-Index
Citation Counts
89
409
29,117
Neurosurgery
Spine Surgery
Cervical Deformity
Spondylosis
* Total H Index Rankings
Rankings
Ranking Based On Selection: 17
Neil A. Martin
Metrics
H-Index
i10-Index
Citation Counts
89
247
34,056
* Total H Index Rankings
Rankings
Ranking Based On Selection: 18
Sander Connolly
Metrics
H-Index
i10-Index
Citation Counts
87
233
33,453
* Total H Index Rankings
Rankings
Ranking Based On Selection: 19
Amy Heimberger
Metrics
H-Index
i10-Index
Citation Counts
85
212
31,198
* Total H Index Rankings
Rankings
Ranking Based On Selection: 20
Christopher S Ogilvy
Metrics
H-Index
i10-Index
Citation Counts
85
378
33,477
Neurosurgery
Cerebrovacular surgery
Endovascular
* Total H Index Rankings
Rankings
Ranking Based On Selection: 21
Timothy Wang
Metrics
H-Index
i10-Index
Citation Counts
84
354
65,275
* Total H Index Rankings
Rankings
Ranking Based On Selection: 22
Bruce Pollock
Metrics
H-Index
i10-Index
Citation Counts
84
207
23,907
* Total H Index Rankings
Rankings
Ranking Based On Selection: 23
Linda Liau
Metrics
H-Index
i10-Index
Citation Counts
83
199
37,728
Brain Tumors
Brain Cancer
Neurosurgical Oncology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 24
David Warren Newell
Metrics
H-Index
i10-Index
Citation Counts
81
174
28,636
* Total H Index Rankings
Rankings
Ranking Based On Selection: 25
Pascal Jabbour
Metrics
H-Index
i10-Index
Citation Counts
79
398
25,142
Neurosurgery
Stroke
Aneurysms
AVMs
Intra-Arterial Chemotherapy