
Dr. Songphol Malakorn
Colorectal Surgeon
- With +15 years of medical expertise, Dr. Songphol Malakorn is a Colo-Rectal Surgeon in Thailand.
- His special interests lie in Robotic-Assisted Colorectal Surgery, Laparoscopic-Assisted Colorectal Surgery, Colorectal Surgical Oncology and Benign Anorectal Diseases.
- Dr. Songphol Malakorn is a member of the Thai Subboard of Surgical Oncology and the Thai Board of Surgery and the Thai Medical Council.
- He has completed MD (2003) from Chulalongkorn University, Thailand.
- He has obtained Fellowships in Corolectal Surgery (2012) from the King Chulalongkorn Memorial Hospital and Advanced Colon and Rectal Surgical Oncology (2019) from the University of Texas, MD Anderson Cancer Center, Texas, USA.
- Dr. Songphol Malakorn is well-versed in Thai and English.
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- With +15 years of medical expertise, Dr. Songphol Malakorn is a Colo-Rectal Surgeon in Thailand.
- His special interests lie in Robotic-Assisted Colorectal Surgery, Laparoscopic-Assisted Colorectal Surgery, Colorectal Surgical Oncology and Benign Anorectal Diseases.
- Dr. Songphol Malakorn is a member of the Thai Subboard of Surgical Oncology and the Thai Board of Surgery and the Thai Medical Council.
- He has completed MD (2003) from Chulalongkorn University, Thailand.
- He has obtained Fellowships in Corolectal Surgery (2012) from the King Chulalongkorn Memorial Hospital and Advanced Colon and Rectal Surgical Oncology (2019) from the University of Texas, MD Anderson Cancer Center, Texas, USA.
- Dr. Songphol Malakorn is well-versed in Thai and English.

Dr. Thanyadej Nimmanwudipong
Surgical Gastroenterologist
- Dr. Thanyadej Nimmanwudipong is one of the best surgical gastroenterologists in Thailand and has over 30 years of experience in this field.
- Areas of expertise include Gastroenterology Surgery, Advanced Laparoscopic Abdominal and Gastrointestinal Surgery and Minimal Invasive Surgery.
- His caring behaviour has earned him a stellar patient record.
- He completed Fellowship in Surgical Research from the University of Lousville and a Diplomate from the Thai Board of Critical Care Medicine.
- The Doctor holds a Certificate of Proficiency in General Surgery from Mahidol University in 1986.
- Dr. Thanyadej is proficient in English & Thai.
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- Dr. Thanyadej Nimmanwudipong is one of the best surgical gastroenterologists in Thailand and has over 30 years of experience in this field.
- Areas of expertise include Gastroenterology Surgery, Advanced Laparoscopic Abdominal and Gastrointestinal Surgery and Minimal Invasive Surgery.
- His caring behaviour has earned him a stellar patient record.
- He completed Fellowship in Surgical Research from the University of Lousville and a Diplomate from the Thai Board of Critical Care Medicine.
- The Doctor holds a Certificate of Proficiency in General Surgery from Mahidol University in 1986.
- Dr. Thanyadej is proficient in English & Thai.

Dr. Somkiat Ussavarojpong
Colorectal Surgeon
- Dr. Somkiat Ussavarojpong is a General Surgeon with experience of 28 years.
- He completed Medical degree, from the faculty of medicine, Siriraj Hospital, Mahidol University 1995 and Diplomate from Thai board of General surgery in 2001
- He is specialized in Colorectal Surgery, Laparoscopic & Endoscopic surgery
- Dr. Somkiat has written several extensive publications for international and national journals.
- He also Certificates in Endoscopic Surgery, Advanced traumatic life support, and Breast reconstruction.
- His special clinical interest lies in General Surgery, and Colorectal Surgery.
- He is fluent in English and Thai.
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- Dr. Somkiat Ussavarojpong is a General Surgeon with experience of 28 years.
- He completed Medical degree, from the faculty of medicine, Siriraj Hospital, Mahidol University 1995 and Diplomate from Thai board of General surgery in 2001
- He is specialized in Colorectal Surgery, Laparoscopic & Endoscopic surgery
- Dr. Somkiat has written several extensive publications for international and national journals.
- He also Certificates in Endoscopic Surgery, Advanced traumatic life support, and Breast reconstruction.
- His special clinical interest lies in General Surgery, and Colorectal Surgery.
- He is fluent in English and Thai.

Assoc. Prof. Varayu Prachayakul
Hepatopancreatobiliary Surgeon
- Dr. Varayu Prachayakul is an accomplished Gastroenterologist having 27+ years of experience in this field.
- He is adept in performing cholangioscopy / pancreatoscopy and single balloon assisted enteroscopy.
- His area of interest is gastrointestinal bleeding, colon cancer screening, endoscopic ultrasound (EUS) in both diagnosis and therapeutic procedures.
- He has done Certification in Advanced Therapeutic Endoscopy and Endosonography, University Medical Center Hamburg-Eppendorf, Germany (2008).
- He was awarded for the outstanding medical student (1993).
- He had published some case reports, case series and articles in various Journals.
- He is a member of Thai Board of Gastroenterology.
- He pursued MD from Faculty of Medicine, Siriraj Hospital, Mahidol University (1993).
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- Dr. Varayu Prachayakul is an accomplished Gastroenterologist having 27+ years of experience in this field.
- He is adept in performing cholangioscopy / pancreatoscopy and single balloon assisted enteroscopy.
- His area of interest is gastrointestinal bleeding, colon cancer screening, endoscopic ultrasound (EUS) in both diagnosis and therapeutic procedures.
- He has done Certification in Advanced Therapeutic Endoscopy and Endosonography, University Medical Center Hamburg-Eppendorf, Germany (2008).
- He was awarded for the outstanding medical student (1993).
- He had published some case reports, case series and articles in various Journals.
- He is a member of Thai Board of Gastroenterology.
- He pursued MD from Faculty of Medicine, Siriraj Hospital, Mahidol University (1993).
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Dr. Chalermrat Bunchorntavakul
Hepatopancreatobiliary Surgeon
- Dr. Chalermrat Bunchorntavakul is a famous Gastroenterologist and Hepatologist having 20+ years of experience.
- He is dexterous in performing liver transplant and treating gastrointestinal diseases such as viral hepatitis, cirrhosis etc.
- His areas of interest are Digestive disorders, Treatment by Endoscopy, and Internal Medicine.
- He is the acting Medical Director of the Liver Transplant Program for the Excellent Center of Organ Transplantation, Ministry of Public Health.
- He is member of various esteemed Associations which include Gastroenterological Association of Thailand, Thai Association for the Study of the Liver, Society of Parenteral and Enteral Nutrition of Thailand, and Royal College of Physicians of Thailand
- He has authored and co-authored over 48 peer-reviewed papers on a variety of GI and liver diseases, especially in the field of viral hepatitis, cirrhosis and liver transplantation.
- He has actively participated in clinical trials and scientific presentations at international meetings. He serves on the editorial boards of Journal of Clinical and Translational Hepatology, and also as a reviewer for several international journals.
- He pursued MD (2001) from the faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok (first class honors). He completed a clinical fellowship (Gastroenterology) at Siriraj Hospital, Thailand, and research fellowship (Hepatology and Liver Transplantation) at the University of Pennsylvania, USA.
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- Dr. Chalermrat Bunchorntavakul is a famous Gastroenterologist and Hepatologist having 20+ years of experience.
- He is dexterous in performing liver transplant and treating gastrointestinal diseases such as viral hepatitis, cirrhosis etc.
- His areas of interest are Digestive disorders, Treatment by Endoscopy, and Internal Medicine.
- He is the acting Medical Director of the Liver Transplant Program for the Excellent Center of Organ Transplantation, Ministry of Public Health.
- He is member of various esteemed Associations which include Gastroenterological Association of Thailand, Thai Association for the Study of the Liver, Society of Parenteral and Enteral Nutrition of Thailand, and Royal College of Physicians of Thailand
- He has authored and co-authored over 48 peer-reviewed papers on a variety of GI and liver diseases, especially in the field of viral hepatitis, cirrhosis and liver transplantation.
- He has actively participated in clinical trials and scientific presentations at international meetings. He serves on the editorial boards of Journal of Clinical and Translational Hepatology, and also as a reviewer for several international journals.
- He pursued MD (2001) from the faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok (first class honors). He completed a clinical fellowship (Gastroenterology) at Siriraj Hospital, Thailand, and research fellowship (Hepatology and Liver Transplantation) at the University of Pennsylvania, USA.

Dr. Thawatchai Akaraviputh
Surgical Gastroenterologist
- Dr. Thawatchai Akaraviputh is a renowned Surgical Gastroenterologist with experience of more than 19+ years.
- He has expertise in the Abdominal hepatobiliary system.
- Dr. Thawatchai has several publications in national and international journals.
- He completed Fellowship in Surgical Endoscopy from Hamburg University in 2002 and a Doctor of Medicine from Mahidol University in 1992.
- The Doctor has received awards also for his incredible contribution to Gastroenterology.
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- Dr. Thawatchai Akaraviputh is a renowned Surgical Gastroenterologist with experience of more than 19+ years.
- He has expertise in the Abdominal hepatobiliary system.
- Dr. Thawatchai has several publications in national and international journals.
- He completed Fellowship in Surgical Endoscopy from Hamburg University in 2002 and a Doctor of Medicine from Mahidol University in 1992.
- The Doctor has received awards also for his incredible contribution to Gastroenterology.

Dr. Apichart Suramethakul
Colorectal Surgeon
- Dr. Apichart Suramethakul is a proficient gastroenterologist having vast experience in this field.
- He is adept in providing diagnosis, treatment, and consultations about disease or abnormalities in the gastrointestinal system and liver.
- He is an expert in cancer screening gastrointestinal tumors, in the high-risk group including people whose family members have cancer or tumor.
- His other areas of expertise are endoscopy, gastroesophageal reflux diseases, irritable bowel syndrome, gastrointestinal bleeding, and pylori infection in the stomach.
- He is also a member of various esteemed Associations which include the Royal College of Physicians of Thailand, the Royal College of Family Physicians of Thailand, the Gastroenterological Association of Thailand (GAT), and the Thai Association for Gastrointestinal Endoscopy (TAGE).
- He graduated with a degree in medicine (MD) from Chulalongkorn University, Thailand.
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- Dr. Apichart Suramethakul is a proficient gastroenterologist having vast experience in this field.
- He is adept in providing diagnosis, treatment, and consultations about disease or abnormalities in the gastrointestinal system and liver.
- He is an expert in cancer screening gastrointestinal tumors, in the high-risk group including people whose family members have cancer or tumor.
- His other areas of expertise are endoscopy, gastroesophageal reflux diseases, irritable bowel syndrome, gastrointestinal bleeding, and pylori infection in the stomach.
- He is also a member of various esteemed Associations which include the Royal College of Physicians of Thailand, the Royal College of Family Physicians of Thailand, the Gastroenterological Association of Thailand (GAT), and the Thai Association for Gastrointestinal Endoscopy (TAGE).
- He graduated with a degree in medicine (MD) from Chulalongkorn University, Thailand.

Dr. Boonchai Ngamsirimas
Colorectal Surgeon
- Dr. Boonchai Ngamsirimas is a leading Colo-Rectal Surgeon who has been practiicng for the past +27 years.
- In 1994 he completed his MD from Srinakharinwirot University, Thailand and then went on to do diplomas between 1998 to 2005 and then in 2011 did a certificate fellowship in 2011 from The Catholic University of Korea Seoul St. Mary's Hospital.
- Dr. Ngamsirimas is well-known to perform colectomy, colostomy, endoscopic surgery, hemorrhoidectomy, IBD surgery, internal sphincterotomy, rectopexy, full/aprtial resection.
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- Dr. Boonchai Ngamsirimas is a leading Colo-Rectal Surgeon who has been practiicng for the past +27 years.
- In 1994 he completed his MD from Srinakharinwirot University, Thailand and then went on to do diplomas between 1998 to 2005 and then in 2011 did a certificate fellowship in 2011 from The Catholic University of Korea Seoul St. Mary's Hospital.
- Dr. Ngamsirimas is well-known to perform colectomy, colostomy, endoscopic surgery, hemorrhoidectomy, IBD surgery, internal sphincterotomy, rectopexy, full/aprtial resection.

Dr. Narong Lertakyamanee
Colorectal Surgeon
- Dr. Narong Lertakyamanee has over 44 years of expertise as an experienced and professional Colo-Rectal Surgeon.
- He is a member of the Thai Medical Council.
- Dr. Narong Lertakyamanee completed MD (1977) from Siriraj Hospital, Mahidol University, Thailand.
- He is trained in Surgery (1982) from Siriraj Hospital, Thailand.
- Dr. Narong Lertakyamanee is well-versed in English and Thai.
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- Dr. Narong Lertakyamanee has over 44 years of expertise as an experienced and professional Colo-Rectal Surgeon.
- He is a member of the Thai Medical Council.
- Dr. Narong Lertakyamanee completed MD (1977) from Siriraj Hospital, Mahidol University, Thailand.
- He is trained in Surgery (1982) from Siriraj Hospital, Thailand.
- Dr. Narong Lertakyamanee is well-versed in English and Thai.

Assoc. Prof. Dr. Jirawat Pattana-Arun
Colorectal Surgeon
- Assoc. Prof. Dr. Jirawat Pattana-Arun is a leading Colo-Rectal Surgeon who has worked in the medical field for over 31 years.
- He specializes in Colorectal Surgery.
- He is a member of the Thai Medical Council, the Thai Board of Surgery and the Thai Subboard of Colon and Rectal Surgery.
- Assoc. Prof. Dr. Jirawat Pattana-Arun has completed MD (1991) and Colon and Rectal Surgery (2001) from Chulalongkorn University, Thailand.
- He has trained in Surgery (1995) from Chulalongkorn University, Thailand.
- Assoc. Prof. Dr. Jirawat Pattana-Arun is well-versed in English, German and Thai.
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- Assoc. Prof. Dr. Jirawat Pattana-Arun is a leading Colo-Rectal Surgeon who has worked in the medical field for over 31 years.
- He specializes in Colorectal Surgery.
- He is a member of the Thai Medical Council, the Thai Board of Surgery and the Thai Subboard of Colon and Rectal Surgery.
- Assoc. Prof. Dr. Jirawat Pattana-Arun has completed MD (1991) and Colon and Rectal Surgery (2001) from Chulalongkorn University, Thailand.
- He has trained in Surgery (1995) from Chulalongkorn University, Thailand.
- Assoc. Prof. Dr. Jirawat Pattana-Arun is well-versed in English, German and Thai.

Dr. Prapon Kanjanasilp
Colorectal Surgeon
- With +20 years of medical experience, Dr. Prapon Kanjanasilp is a skilled Colo-Rectal Surgeon.
- He is a member of the Thai Medical Council.
- Dr. Prapon Kanjanasilp has completed MD (2002) from Chulalongkorn University, Thailand.
- He has trained in Surgery (2009) from Chulalongkorn University, Thailand.
- Dr. Prapon Kanjanasilp is well-versed in English and Thai.
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- With +20 years of medical experience, Dr. Prapon Kanjanasilp is a skilled Colo-Rectal Surgeon.
- He is a member of the Thai Medical Council.
- Dr. Prapon Kanjanasilp has completed MD (2002) from Chulalongkorn University, Thailand.
- He has trained in Surgery (2009) from Chulalongkorn University, Thailand.
- Dr. Prapon Kanjanasilp is well-versed in English and Thai.

Dr. Vitoon Chainswangwatanakul
Colorectal Surgeon
- Dr. Vitoon Chainswangwatanakul is a trained Colo-Rectal Surgeon with 25 years of experience.
- He is interested in minimally invasive and robotic surgery, hernia, surgical infection, nutrition and carcinogenesis of colorectal cancer.
- He is a member of the American Association for Cancer Research (AACR), the Japan Society for Endoscopic Surgery (JSES) and the Thai Medical Council.
- He is also Assistant Dean of Research Affair and Head of Siriraj Cancer Center.
- He is the President of the Laparoscopic and Endoscopic Surgeons of Thailand (LEST) and Secretary-General of the Royal College of Surgeons of Thailand.
- Dr. Vitoon Chainswangwatanakul has completed MD (1986) from Siriraj Hospital, Mahidol University, Thailand.
- He has trained in Surgery (1992) from Siriraj Hospital, Thailand.
- He has done Doctor of Philosophy (1999) at the University of London, Imperial College of Science, Technology and Medicine, UK.
- Dr. Vitoon Chainswangwatanakul is well-versed in English and Thai.
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- Dr. Vitoon Chainswangwatanakul is a trained Colo-Rectal Surgeon with 25 years of experience.
- He is interested in minimally invasive and robotic surgery, hernia, surgical infection, nutrition and carcinogenesis of colorectal cancer.
- He is a member of the American Association for Cancer Research (AACR), the Japan Society for Endoscopic Surgery (JSES) and the Thai Medical Council.
- He is also Assistant Dean of Research Affair and Head of Siriraj Cancer Center.
- He is the President of the Laparoscopic and Endoscopic Surgeons of Thailand (LEST) and Secretary-General of the Royal College of Surgeons of Thailand.
- Dr. Vitoon Chainswangwatanakul has completed MD (1986) from Siriraj Hospital, Mahidol University, Thailand.
- He has trained in Surgery (1992) from Siriraj Hospital, Thailand.
- He has done Doctor of Philosophy (1999) at the University of London, Imperial College of Science, Technology and Medicine, UK.
- Dr. Vitoon Chainswangwatanakul is well-versed in English and Thai.
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