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Dr R Rajesh

MBBS, MRCP (UK), MMED (Int Med), ESEGH, SCOPE(WOF)

Associate Consultant

Specialty: Gastroenterology ＆ Hepatology

Sub-specialties: Obesity, Endoscopy

Conditions Treated by this Doctor:
Bariatric and Metabolic Surgery , Chromoendoscopy , Diagnostic and Therapeutic Endoscopy , Endoscopic Resection (EMR ＆ ESD) , Endoscopy , Gastrointestinal Stenting , Percutaneous Endoscopic Gastrostomy (PEG) , Small Bowel Enteroscopy .

Clinical Appointments

Associate Consultant Gastroenterology ＆ Hepatology Singapore General Hospital

Academic Appointments

Core Faculty, Internal Medicine Residency, Singhealth

Physician Faculty, Gastroenterology and Hepatology Residency, Singhealth

Department Lead, MO Training, Education Committee, Gastroenterology and Hepatology, SGH

Senior Associate, Duke-NUS

Clinical Tutor, NUS YLLSOM

Clinical Tutor, LKCSoM

Profile

Dr Rajesh is an accredited specialist in Gastroenterology and Hepatology with subspecialty expertise in advanced endoscopy, focusing on endoscopic cancer resection and metabolic endoscopy for obesity. He is recognized as a rising leader in the field and is actively involved in driving procedural innovation and clinical research.

An award-winning clinician-educator, he has received accolades such as the RISE Inspiring Educator Award and the Med ACP Junior Educator Award. He was most recently awarded the prestigious SingHealth Scholarship to pursue a Master’s in Clinical Investigation at the National University of Singapore (NUS), further affirming his commitment to academic medicine and translational research.

Deeply committed to teaching, he holds academic appointments with all three local medical schools and serves as Core Faculty in the Internal Medicine Residency Program. Within SGH, he leads departmental education efforts and is actively involved in simulation-based training and postgraduate curriculum design.

He is also well published in peer-reviewed international journals and remains actively involved in both clinical and translational research.

Education

SCOPE Certification, World Obesity Federation (2023)
Specialist Accreditation, Gastroenterology & Hepatology, SAB Singapore (2023)
European Specialty Exam in Gastroenterology and Hepatology, Royal College of Physicians (2022)
Member of Royal College of Physicians (UK), Royal College of Physicians (2021)
Master of Medicine (Int Med), National University of Singapore (2021)
Bachelor of Medicine and Bachelor of Surgery(MBBS), National University of Singapore (2015)

Professional Appointments and Committee Memberships

Member, Singapore Association for the Study of Obesity (2023–present)
Member, American Bariatric Endoscopy Association (2021–present)
Member, Gastroenterological Society of Singapore (2020–present)
Member, American Society for Gastrointestinal Endoscopy (2020–present)
Member, Royal College of Physicians, UK (2021- present)

Awards

International Young Endoscopist Award, International Digestive Endoscopy Network (2024)
Service with a Heart Award, SGH (2024)
GI HEP Endoscopy Video- Runner up (2024)
Med ACP Junior Educator Award (2023)
EUS Summit Young Investigator Award (2022)
RISE Inspiring Educator Award (2022)
RISE Outstanding Resident Award (2016, 2017)
NUS Junior Doctor Teaching Award (2016)

Research Interests

Obesity physiology
Bariatric endoscopy and pharmacotherapy
Endoscopic resection techniques
Gastrointestinal bleeding

Publications

Ren, Y. J. J., Rajesh, R., Wan, W. K., Cheah, M., & Tan, Y. Y. (2024). Linitis plastica in a patient with previous breast cancer: Primary gastric cancer or breast cancer metastases? JGH Open, 8(12).
Francisco, C. P. D., Ravi, R., Lopez-Nava, G., & Asokkumar, R. (2024). Endoscopic tips for intragastric balloon use for obesity: What you need to know. VideoGIE, 9(10), 460–462.
Asokkumar, R., Francisco, C. P. D., Wei, L. K., Ravi, R., Cheah, M., & Soetikno, R. (2024). Deconstructing the steps of PEG insertion using the introducer technique. VideoGIE, 9(6), 267–270.
Asokkumar, R., Francisco, C. P. D., Wei, L. K., Ravi, R., Cheah, M., & Soetikno, R. (2024). Deconstructing the steps of pull-type PEG tube insertion. VideoGIE, 9(6), 262–266.
Rajesh, R., Sangameshwar, A., Tan, Y. Y., Teh, K. J. K., Tham, T. Y., & Cheah, C. C. M. (2024). Approach to abnormal liver biochemistries in the primary care setting. Cureus, 16(3), e56541.
Qiu, T., Tan, Y., Tee, C. H. N., & Rajesh, R. (2024). An unusual presentation of cobblestone esophagus from bisphosphonate use. Cureus, 16(1), e52602.
Tee, C. H. N., Ravi, R., Ang, T. L., & Li, J. W. (2023). Role of artificial intelligence in Barrett’s esophagus. Artificial Intelligence in Gastroenterology, 4(2), 28–35.
Asokkumar, R., Ravi, R., Taweerutchana, V., Tan, Y. B., Maipang, K., Hong, L. C., ... Pausawasdi, N. (2023). Endoscopic sleeve gastroplasty using the novel single-channel suturing device: A multicenter experience. DEN Open, 3(1), e213.
Ang, D., Koo, S. H., Chan, Y. H., Tan, T. Y., Soon, G. H., Tan, C. K., ... Rajesh, R., ... Ang, T. L. (2022). Clinical trial: Seven-day vonoprazan- versus 14-day proton pump inhibitor-based triple therapy for first-line Helicobacter pylori eradication. Alimentary Pharmacology & Therapeutics, 56, 436–449.
Yuan, T. Y., Rajesh, R., & Tan, M. (2022). Oral faecal microbiota transplantation in ulcerative colitis. The Lancet Gastroenterology & Hepatology, 7(4), 286.
Negi, A., Asokkumar, R., Ravi, R., Lopez-Nava, G., & Bautista-Castaño, I. (2022). Nutritional management and role of multidisciplinary follow-up after endoscopic bariatric treatment for obesity. Nutrients, 14(16), 3450.