Citation Rankings
Highly Cited Researchers

Medical and Health Sciences / Gastroenterology Highly Cited Researchers Citation 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.

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Total 2.440 scientist, 101 country, 902 institution
* Total Citation Counts Rankings
Ranking Based On Selection :1
United States
William Sandborn
Inflammatory bowel disease
Crohn's disease
ulcerative colitis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
192,421
83,893
0.436
* Total Citation Counts Rankings
Ranking Based On Selection :2
Australia
Nicholas Talley
Gastroenterology
Hepatology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
151,274
39,752
0.263
* Total Citation Counts Rankings
Ranking Based On Selection :3
Ireland
John Cryan
Neuropharmacology
stress
neurogastroenterology
microbiome
psychopharmacology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
121,300
79,803
0.658
* Total Citation Counts Rankings
Ranking Based On Selection :4
Germany
Peter Galle
Gastroenterology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
115,354
53,273
0.462
* Total Citation Counts Rankings
Ranking Based On Selection :5
United States
Hashem B El-Serag
medicine
gastroenterology and hepatology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
114,333
49,778
0.435
* Total Citation Counts Rankings
Ranking Based On Selection :6
Germany
Dieter Häussinger
Hepatologie
Zellbiologie
Gastroenterologie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
106,395
31,900
0.300
* Total Citation Counts Rankings
Ranking Based On Selection :7
United States
Michael Camilleri
gastroenterology
enteric neuroscience
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
99,115
35,183
0.355
* Total Citation Counts Rankings
Ranking Based On Selection :8
United States
Yngve Falck Ytter
Hepatology
Evidence-based Medicine
GRADE
guidelines
Gastroenterology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
96,730
57,964
0.599
* Total Citation Counts Rankings
Ranking Based On Selection :9
Hong Kong
Francis Kl Chan
Gastroenterology
Medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
84,738
44,162
0.521
* Total Citation Counts Rankings
Ranking Based On Selection :10
United States
Rohit Loomba
MASLD
fatty liver
NASH
cirrhosis
liver disease
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
84,243
70,871
0.841
* Total Citation Counts Rankings
Ranking Based On Selection :11
Canada
Moayyedi Paul
Gastroenterology
Medicine
Evidence Based Medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
84,196
37,392
0.444
* Total Citation Counts Rankings
Ranking Based On Selection :12
Germany
Frank Tacke
Gastroenterology
Hepatology
Immunology
Infectious Diseases
Critical Care Medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
83,769
55,198
0.659
* Total Citation Counts Rankings
Ranking Based On Selection :13
Australia
Michael Kamm
Gastroenterology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
82,588
22,013
0.267
* Total Citation Counts Rankings
Ranking Based On Selection :14
India
Rakesh Aggarwal
Gastroenterology
Viral hepatitis
Public Health
Health economics
Scientific communication
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
80,837
48,175
0.596
* Total Citation Counts Rankings
Ranking Based On Selection :15
United States
Edward V Loftus Jr
Crohn's disease
ulcerative colitis
inflammatory bowel disease
inflammatory bowel diseases
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
76,933
33,686
0.438
* Total Citation Counts Rankings
Ranking Based On Selection :16
United Kingdom
Jack Satsangi
Gastroenterology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
72,612
24,852
0.342
* Total Citation Counts Rankings
Ranking Based On Selection :17
United States
Bruce E. Sands
Gastroenterology
inflammatory bowel disease
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
71,569
38,970
0.545
* Total Citation Counts Rankings
Ranking Based On Selection :18
United Kingdom
William MC Rosenberg
Hepatology
Gastroenterology
Immunology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70,348
18,344
0.261
* Total Citation Counts Rankings
Ranking Based On Selection :19
Italy
Antonio Craxi
Hepatology - Gastroenterology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,996
24,051
0.370
* Total Citation Counts Rankings
Ranking Based On Selection :20
Hong Kong
Siew C Ng
Gastroenterology
Endoscopy
Medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,998
48,346
0.806
* Total Citation Counts Rankings
Ranking Based On Selection :21
United Arab Emirates
JAZ Jankowski
Gastroenterology
Genomics and Aspirin Chemoprevention
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,646
33,542
0.562
* Total Citation Counts Rankings
Ranking Based On Selection :22
Hong Kong
Man Fung Yuen
Hepatology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
58,705
26,987
0.460
* Total Citation Counts Rankings
Ranking Based On Selection :23
Taiwan
JH Kao
Hepatology and gastroenterology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,832
20,052
0.366
* Total Citation Counts Rankings
Ranking Based On Selection :24
Canada
Richard Hunt
Gastroenterology
Second interest
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,722
14,441
0.264
* Total Citation Counts Rankings
Ranking Based On Selection :25
United States
Robert J Fontana
hepatology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,748
21,385
0.398
* Total Citation Counts Rankings
Rankings
881
United States
363
11
Ranking Based On Selection: 1
William Sandborn
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
192,421
83,893
0.436
Inflammatory bowel disease
Crohn's disease
ulcerative colitis
* Total Citation Counts Rankings
Rankings
1,398
Australia
35
1
Ranking Based On Selection: 2
Nicholas Talley
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
151,274
39,752
0.263
* Total Citation Counts Rankings
Rankings
2,123
Ireland
5
1
Ranking Based On Selection: 3
John Cryan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
121,300
79,803
0.658
Neuropharmacology
stress
neurogastroenterology
microbiome
psychopharmacology
* Total Citation Counts Rankings
Rankings
2,352
Germany
66
1
Ranking Based On Selection: 4
Peter Galle
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
115,354
53,273
0.462
* Total Citation Counts Rankings
Rankings
2,385
United States
1,133
4
Ranking Based On Selection: 5
Hashem B El-Serag
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
114,333
49,778
0.435
* Total Citation Counts Rankings
Rankings
2,763
Germany
85
3
Ranking Based On Selection: 6
Dieter Häussinger
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
106,395
31,900
0.300
* Total Citation Counts Rankings
Rankings
3,167
United States
1,519
11
Ranking Based On Selection: 7
Michael Camilleri
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
99,115
35,183
0.355
* Total Citation Counts Rankings
Rankings
3,331
United States
1,594
5
Ranking Based On Selection: 8
Yngve Falck Ytter
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
96,730
57,964
0.599
Hepatology
Evidence-based Medicine
GRADE
guidelines
Gastroenterology
* Total Citation Counts Rankings
Rankings
4,194
Hong Kong
20
6
Ranking Based On Selection: 9
Francis Kl Chan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
84,738
44,162
0.521
* Total Citation Counts Rankings
Rankings
4,234
United States
2,012
47
Ranking Based On Selection: 10
Rohit Loomba
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
84,243
70,871
0.841
* Total Citation Counts Rankings
Rankings
4,240
Canada
166
28
Ranking Based On Selection: 11
Moayyedi Paul
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
84,196
37,392
0.444
* Total Citation Counts Rankings
Rankings
4,277
Germany
149
3
Ranking Based On Selection: 12
Frank Tacke
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
83,769
55,198
0.659
Gastroenterology
Hepatology
Immunology
Infectious Diseases
Critical Care Medicine
* Total Citation Counts Rankings
Rankings
4,377
Australia
174
17
Ranking Based On Selection: 13
Michael Kamm
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
82,588
22,013
0.267
* Total Citation Counts Rankings
Rankings
4,552
India
53
1
Ranking Based On Selection: 14
Rakesh Aggarwal
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
80,837
48,175
0.596
Gastroenterology
Viral hepatitis
Public Health
Health economics
Scientific communication
* Total Citation Counts Rankings
Rankings
4,999
United States
2,376
21
Ranking Based On Selection: 15
Edward V Loftus Jr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
76,933
33,686
0.438
Crohn's disease
ulcerative colitis
inflammatory bowel disease
inflammatory bowel diseases
* Total Citation Counts Rankings
Rankings
5,483
United Kingdom
457
13
Ranking Based On Selection: 16
Jack Satsangi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
72,612
24,852
0.342
* Total Citation Counts Rankings
Rankings
5,604
United States
2,657
15
Ranking Based On Selection: 17
Bruce E. Sands
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
71,569
38,970
0.545
* Total Citation Counts Rankings
Rankings
5,759
United Kingdom
488
50
Ranking Based On Selection: 18
William MC Rosenberg
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70,348
18,344
0.261
* Total Citation Counts Rankings
Rankings
6,551
Italy
344
1
Ranking Based On Selection: 19
Antonio Craxi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,996
24,051
0.370
* Total Citation Counts Rankings
Rankings
7,458
Hong Kong
49
14
Ranking Based On Selection: 20
Siew C Ng
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,998
48,346
0.806
* Total Citation Counts Rankings
Rankings
7,531
United Arab Emirates
5
1
Ranking Based On Selection: 21
JAZ Jankowski
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,646
33,542
0.562
Gastroenterology
Genomics and Aspirin Chemoprevention
* Total Citation Counts Rankings
Rankings
7,723
Hong Kong
52
15
Ranking Based On Selection: 22
Man Fung Yuen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
58,705
26,987
0.460
* Total Citation Counts Rankings
Rankings
8,645
Taiwan
25
10
Ranking Based On Selection: 23
JH Kao
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,832
20,052
0.366
* Total Citation Counts Rankings
Rankings
8,673
Canada
332
44
Ranking Based On Selection: 24
Richard Hunt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,722
14,441
0.264
* Total Citation Counts Rankings
Rankings
8,933
United States
4,266
79
Ranking Based On Selection: 25
Robert J Fontana
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,748
21,385
0.398