Citation Rankings
Highly Cited Researchers
World Highly Cited Researchers CitationMedical and Health Sciences / Gastroenterology 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 :1
Inflammatory bowel disease
Crohn's disease
ulcerative colitis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
190,725
82,341
0.432
* Total Citation Counts Rankings
Ranking Based On Selection :2
Gastroenterology
Hepatology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
150,730
39,307
0.261
* Total Citation Counts Rankings
Ranking Based On Selection :3
Neuropharmacology
stress
neurogastroenterology
microbiome
psychopharmacology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
119,676
78,282
0.654
* Total Citation Counts Rankings
Ranking Based On Selection :4
Gastroenterology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
114,284
52,243
0.457
* Total Citation Counts Rankings
Ranking Based On Selection :5
medicine
gastroenterology and hepatology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
113,675
49,181
0.433
* Total Citation Counts Rankings
Ranking Based On Selection :6
Hepatologie
Zellbiologie
Gastroenterologie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
105,949
31,512
0.297
* Total Citation Counts Rankings
Ranking Based On Selection :7
gastroenterology
enteric neuroscience
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
98,539
34,700
0.352
* Total Citation Counts Rankings
Ranking Based On Selection :8
Hepatology
Evidence-based Medicine
GRADE
guidelines
Gastroenterology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
95,981
57,247
0.596
* Total Citation Counts Rankings
Ranking Based On Selection :9
Gastroenterology
Medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
84,001
43,486
0.518
* Total Citation Counts Rankings
Ranking Based On Selection :10
Gastroenterology
Medicine
Evidence Based Medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
83,499
36,798
0.441
* Total Citation Counts Rankings
Ranking Based On Selection :11
Gastroenterology
Hepatology
Immunology
Infectious Diseases
Critical Care Medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
82,811
54,287
0.656
* Total Citation Counts Rankings
Ranking Based On Selection :12
MASLD
fatty liver
NASH
cirrhosis
liver disease
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
82,596
69,251
0.838
* Total Citation Counts Rankings
Ranking Based On Selection :13
Gastroenterology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
82,291
21,750
0.264
* Total Citation Counts Rankings
Ranking Based On Selection :14
Gastroenterology
Viral hepatitis
Public Health
Health economics
Scientific communication
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
80,211
47,581
0.593
* Total Citation Counts Rankings
Ranking Based On Selection :15
Crohn's disease
ulcerative colitis
inflammatory bowel disease
inflammatory bowel diseases
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
76,393
33,200
0.435
* Total Citation Counts Rankings
Ranking Based On Selection :16
Gastroenterology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
72,209
24,556
0.340
* Total Citation Counts Rankings
Ranking Based On Selection :17
Gastroenterology
inflammatory bowel disease
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70,665
38,095
0.539
* Total Citation Counts Rankings
Ranking Based On Selection :18
Hepatology
Gastroenterology
Immunology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70,147
18,148
0.259
* Total Citation Counts Rankings
Ranking Based On Selection :19
Hepatology - Gastroenterology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,662
23,752
0.367
* Total Citation Counts Rankings
Ranking Based On Selection :20
Gastroenterology
Genomics and Aspirin Chemoprevention
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,416
33,338
0.561
* Total Citation Counts Rankings
Ranking Based On Selection :21
Gastroenterology
Endoscopy
Medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,129
47,505
0.803
* Total Citation Counts Rankings
Ranking Based On Selection :22
Hepatology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
58,332
26,645
0.457
* Total Citation Counts Rankings
Ranking Based On Selection :23
Hepatology and gastroenterology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,515
19,765
0.363
* Total Citation Counts Rankings
Ranking Based On Selection :24
Gastroenterology
Second interest
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,468
14,225
0.261
* Total Citation Counts Rankings
Ranking Based On Selection :25
hepatology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,467
21,130
0.395
* Total Citation Counts Rankings
Rankings
886
366
11
Ranking Based On Selection: 1
William Sandborn
University of California San Diego
San Diego, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
190,725
82,341
0.432
Inflammatory bowel disease
Crohn's disease
ulcerative colitis
* Total Citation Counts Rankings
Rankings
1,390
34
1
Ranking Based On Selection: 2
Nicholas Talley
University of Newcastle
Callaghan, Australia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
150,730
39,307
0.261
Gastroenterology
Hepatology
* Total Citation Counts Rankings
Rankings
2,157
6
2
Ranking Based On Selection: 3
John Cryan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
119,676
78,282
0.654
Neuropharmacology
stress
neurogastroenterology
microbiome
psychopharmacology
* Total Citation Counts Rankings
Rankings
2,362
66
1
Ranking Based On Selection: 4
Peter Galle
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
114,284
52,243
0.457
* Total Citation Counts Rankings
Rankings
2,390
1,131
4
Ranking Based On Selection: 5
Hashem B El-Serag
Baylor College of Medicine
Houston, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
113,675
49,181
0.433
medicine
gastroenterology and hepatology
* Total Citation Counts Rankings
Rankings
2,757
82
3
Ranking Based On Selection: 6
Dieter Häussinger
Heinrich Heine Universität Düsseldorf
Düsseldorf, Germany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
105,949
31,512
0.297
Hepatologie
Zellbiologie
Gastroenterologie
* Total Citation Counts Rankings
Rankings
3,175
1,521
11
Ranking Based On Selection: 7
Michael Camilleri
Mayo Clinic
Rochester, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
98,539
34,700
0.352
gastroenterology
enteric neuroscience
* Total Citation Counts Rankings
Rankings
3,353
1,604
5
Ranking Based On Selection: 8
Yngve Falck Ytter
Case Western Reserve University
Cleveland, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
95,981
57,247
0.596
Hepatology
Evidence-based Medicine
GRADE
guidelines
Gastroenterology
* Total Citation Counts Rankings
Rankings
4,221
20
6
Ranking Based On Selection: 9
Francis Kl Chan
Chinese University of Hong Kong
Central Ave, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
84,001
43,486
0.518
Gastroenterology
Medicine
* Total Citation Counts Rankings
Rankings
4,266
166
28
Ranking Based On Selection: 10
Moayyedi Paul
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
83,499
36,798
0.441
Gastroenterology
Medicine
Evidence Based Medicine
* Total Citation Counts Rankings
Rankings
4,333
153
3
Ranking Based On Selection: 11
Frank Tacke
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
82,811
54,287
0.656
Gastroenterology
Hepatology
Immunology
Infectious Diseases
Critical Care Medicine
* Total Citation Counts Rankings
Rankings
4,345
2,070
49
Ranking Based On Selection: 12
Rohit Loomba
University of California San Diego
San Diego, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
82,596
69,251
0.838
MASLD
fatty liver
NASH
cirrhosis
liver disease
* Total Citation Counts Rankings
Rankings
4,374
173
17
Ranking Based On Selection: 13
Michael Kamm
University of Melbourne
Melbourne, Australia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
82,291
21,750
0.264
* Total Citation Counts Rankings
Rankings
4,579
55
1
Ranking Based On Selection: 14
Rakesh Aggarwal
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
80,211
47,581
0.593
Gastroenterology
Viral hepatitis
Public Health
Health economics
Scientific communication
* Total Citation Counts Rankings
Rankings
5,015
2,383
21
Ranking Based On Selection: 15
Edward V Loftus Jr
Mayo Clinic
Rochester, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
76,393
33,200
0.435
Crohn's disease
ulcerative colitis
inflammatory bowel disease
inflammatory bowel diseases
* Total Citation Counts Rankings
Rankings
5,499
454
14
Ranking Based On Selection: 16
Jack Satsangi
University of Edinburgh
Edinburgh, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
72,209
24,556
0.340
* Total Citation Counts Rankings
Rankings
5,675
2,690
15
Ranking Based On Selection: 17
Bruce E. Sands
Icahn School of Medicine at Mount Sinai
New York City, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70,665
38,095
0.539
Gastroenterology
inflammatory bowel disease
* Total Citation Counts Rankings
Rankings
5,738
482
48
Ranking Based On Selection: 18
William MC Rosenberg
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70,147
18,148
0.259
Hepatology
Gastroenterology
Immunology
* Total Citation Counts Rankings
Rankings
6,564
341
1
Ranking Based On Selection: 19
Antonio Craxi
Università degli Studi di Palermo
Palermo, Italy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,662
23,752
0.367
Hepatology - Gastroenterology
* Total Citation Counts Rankings
Rankings
7,527
5
1
Ranking Based On Selection: 20
JAZ Jankowski
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,416
33,338
0.561
Gastroenterology
Genomics and Aspirin Chemoprevention
* Total Citation Counts Rankings
Rankings
7,585
49
14
Ranking Based On Selection: 21
Siew C Ng
Chinese University of Hong Kong
Central Ave, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,129
47,505
0.803
Gastroenterology
Endoscopy
Medicine
* Total Citation Counts Rankings
Rankings
7,749
52
15
Ranking Based On Selection: 22
Man Fung Yuen
University of Hong Kong
Pok Fu Lam, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
58,332
26,645
0.457
* Total Citation Counts Rankings
Rankings
8,665
25
10
Ranking Based On Selection: 23
JH Kao
National Taiwan University
Taipei City, Taiwan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,515
19,765
0.363
Hepatology and gastroenterology
* Total Citation Counts Rankings
Rankings
8,677
331
44
Ranking Based On Selection: 24
Richard Hunt
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,468
14,225
0.261
Gastroenterology
Second interest
* Total Citation Counts Rankings
Rankings
8,939
4,262
79
Ranking Based On Selection: 25
Robert J Fontana
University of Michigan
Ann Arbor, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,467
21,130
0.395