Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 374 Scientists Citation Rankings - 2025
Discover the world’s highly cited researchers through the AD Scientific Index 2025 Citation Rankings.
These rankings evaluate scientists based on their total and recent citation counts, capturing the breadth and real-time currency of academic recognition. Citation data reveals how widely a scholar’s work is referenced, applied, and extended across diverse disciplines. The rankings are routinely updated to reflect ongoing citation growth, while eliminating distortions from excessive co-authorship and institutional inflation. Premium tools provide access to detailed citation dynamics, unethical citation behavior detection, and field-normalized benchmarking.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
Atherosclerosis
drug safety and musculoskeletal diseas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
57,501
53,746
0.935
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* Total Citation Counts Rankings
Ranking Based On Selection: 2
Quality Use of Medicines
Medication Safety
Clinical Pharmacy
Pharmacy Practice
Evidence-base
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,137
38,209
0.778
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Longitudinal Data Analysis
TB/HIV
Causal Inference
Maternal Health
Machine Learnin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,572
42,845
0.920
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Nutrition interventions
Infectious diseases
Child and Maternal nutrition
NC
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,218
39,487
0.935
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Public healt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,168
23,988
0.770
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Longitudinal
bayesian
survival
Multivariate Data Analysis
Communicable and Non-communicable Disease
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,765
22,894
0.889
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Pharmacolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,967
22,881
0.996
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Communicable and non communicable disease
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,382
16,920
0.791
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Health science
Pharmacolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,842
15,745
0.755
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* Total Citation Counts Rankings
Ranking Based On Selection: 10
Pharmacognos
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,267
16,823
0.873
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Exposome
Diet and Respiratory disease
Air pollution and Respiratory Health
and Climate and Healt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,115
13,543
0.791
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Environmental Science/Technology
Drinking Water Purification
Environmental Health
Sanitatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,102
15,138
0.885
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Preconception care
Public health
Helth promotion
Lifestyle modification
primary car
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,653
9,770
0.917
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,957
7,776
0.977
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Ecolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,633
3,673
0.793
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Hydrology
climate change
pedology
land use change
geoinformatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,047
2,890
0.714
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Malaria
Tuberculosis
Cancer
Cardiovascular System (CVS)
and Diabetes Mellitus (DM) relate
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,988
3,555
0.891
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Dryland rehabilitation
Forestry
Forest ecology
Forests and community unitization of them
Forest Managemen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,673
1,998
0.544
* Total Citation Counts Rankings
Ranking Based On Selection: 19
plant breeding
Seed
agrobiodiversity
Post harvest loss reduction
Gender in Agricultur
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,435
1,216
0.499
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Wildlife Ecology and Conservatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,373
1,289
0.543
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Healthcare Economic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,294
2,157
0.940
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Bio-statistics
Infant feeding
Diabete
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,150
1,888
0.878
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Parasitology and Aquatic Ecolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,139
1,245
0.582
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Environmental Health
Occupational Health
Public Health
One Healt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,045
2,015
0.985
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Plant breeding
genetics
plant genetic resources and Physiolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,825
1,344
0.736
* Total Citation Counts Rankings
Rankings
8,643
7
1
Ranking Based On Selection: 1
Abadi Kahsu Gebre
Mekelle University
Mekelle, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
57,501
53,746
0.935
Atherosclerosis
drug safety and musculoskeletal diseas
* Total Citation Counts Rankings
Rankings
11,054
11
2
Ranking Based On Selection: 2
Tesfay Mehari Atey
Mekelle University
Mekelle, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,137
38,209
0.778
Quality Use of Medicines
Medication Safety
Clinical Pharmacy
Pharmacy Practice
Evidence-base
* Total Citation Counts Rankings
Rankings
12,036
14
3
Ranking Based On Selection: 3
Kebede Embaye Gezae
Mekelle University
Mekelle, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,572
42,845
0.920
Longitudinal Data Analysis
TB/HIV
Causal Inference
Maternal Health
Machine Learnin
* Total Citation Counts Rankings
Rankings
14,144
18
4
Ranking Based On Selection: 4
Meaza Girma Degefa
Mekelle University
Mekelle, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,218
39,487
0.935
Nutrition interventions
Infectious diseases
Child and Maternal nutrition
NC
* Total Citation Counts Rankings
Rankings
22,742
26
5
Ranking Based On Selection: 5
Kidanu Gebremariam Meles
Mekelle University
Mekelle, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,168
23,988
0.770
* Total Citation Counts Rankings
Rankings
30,357
29
6
Ranking Based On Selection: 6
Hagazi Gebre Meles
Mekelle University
Mekelle, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,765
22,894
0.889
Longitudinal
bayesian
survival
Multivariate Data Analysis
Communicable and Non-communicable Disease
* Total Citation Counts Rankings
Rankings
35,767
36
7
Ranking Based On Selection: 7
Kaleab Alemayehu Zewdie
Mekelle University
Mekelle, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,967
22,881
0.996
* Total Citation Counts Rankings
Rankings
39,565
40
8
Ranking Based On Selection: 8
Gebremedhin Berhe Gebregergs
Mekelle University
Mekelle, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,382
16,920
0.791
Communicable and non communicable disease
* Total Citation Counts Rankings
Rankings
41,063
42
9
Ranking Based On Selection: 9
Kald Beshir Tuem
Mekelle University
Mekelle, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,842
15,745
0.755
Health science
Pharmacolog
* Total Citation Counts Rankings
Rankings
45,668
48
10
Ranking Based On Selection: 10
Helen Bitew
Mekelle University
Mekelle, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,267
16,823
0.873
Smart Institutional Plan
Powerful Insights + Smart Membership = Institutional Success
Unlock 360° Real-Time Institutional Analysis to identify your institution’s strengths and areas for improvement.
* Total Citation Counts Rankings
Rankings
53,618
54
11
Ranking Based On Selection: 11
Mulubirhan Assefa Alemayohu
Mekelle University
Mekelle, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,115
13,543
0.791
Exposome
Diet and Respiratory disease
Air pollution and Respiratory Health
and Climate and Healt
* Total Citation Counts Rankings
Rankings
53,675
55
12
Ranking Based On Selection: 12
Adhena Ayaliew Werkneh
Mekelle University
Mekelle, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,102
15,138
0.885
Environmental Science/Technology
Drinking Water Purification
Environmental Health
Sanitatio
* Total Citation Counts Rankings
Rankings
97,439
78
13
Ranking Based On Selection: 13
Beyene Meressa
Mekelle University
Mekelle, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,653
9,770
0.917
Preconception care
Public health
Helth promotion
Lifestyle modification
primary car
* Total Citation Counts Rankings
Rankings
135,451
87
14
Ranking Based On Selection: 14
Gebrekiros Gebremichael Meles
Mekelle University
Mekelle, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,957
7,776
0.977
* Total Citation Counts Rankings
Rankings
233,384
125
15
Ranking Based On Selection: 15
Emiru Birhane
Mekelle University
Mekelle, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,633
3,673
0.793
* Total Citation Counts Rankings
Rankings
264,322
139
16
Ranking Based On Selection: 16
Amanuel Zenebe Abraha
Mekelle University
Mekelle, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,047
2,890
0.714
Hydrology
climate change
pedology
land use change
geoinformatio
* Total Citation Counts Rankings
Rankings
267,736
141
17
Ranking Based On Selection: 17
Dawit Zewdu Wondafrash
Mekelle University
Mekelle, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,988
3,555
0.891
Malaria
Tuberculosis
Cancer
Cardiovascular System (CVS)
and Diabetes Mellitus (DM) relate
* Total Citation Counts Rankings
Rankings
287,510
159
18
Ranking Based On Selection: 18
Kindeya Gebrehiwot
Mekelle University
Mekelle, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,673
1,998
0.544
Dryland rehabilitation
Forestry
Forest ecology
Forests and community unitization of them
Forest Managemen
* Total Citation Counts Rankings
Rankings
401,291
220
19
Ranking Based On Selection: 19
Fetien Abay Abera
Mekelle University
Mekelle, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,435
1,216
0.499
plant breeding
Seed
agrobiodiversity
Post harvest loss reduction
Gender in Agricultur
* Total Citation Counts Rankings
Rankings
408,927
224
20
Ranking Based On Selection: 20
Gidey Yirga
Mekelle University
Mekelle, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,373
1,289
0.543
Wildlife Ecology and Conservatio
* Total Citation Counts Rankings
Rankings
419,296
233
21
Ranking Based On Selection: 21
Yared Belete Belay
Mekelle University
Mekelle, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,294
2,157
0.940
* Total Citation Counts Rankings
Rankings
439,530
248
22
Ranking Based On Selection: 22
Aberash Abay
Mekelle University
Mekelle, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,150
1,888
0.878
* Total Citation Counts Rankings
Rankings
441,253
250
23
Ranking Based On Selection: 23
Tadesse Dejenie
Mekelle University
Mekelle, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,139
1,245
0.582
Parasitology and Aquatic Ecolog
* Total Citation Counts Rankings
Rankings
455,577
266
24
Ranking Based On Selection: 24
Akeza Awealom Asgedom
Mekelle University
Mekelle, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,045
2,015
0.985
Environmental Health
Occupational Health
Public Health
One Healt
* Total Citation Counts Rankings
Rankings
493,100
302
25
Ranking Based On Selection: 25
Dejene Kassahun Mengistu
Mekelle University
Mekelle, Ethiopia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,825
1,344
0.736
Plant breeding
genetics
plant genetic resources and Physiolog