Istanbul University, Istanbul Faculty of Medicine
Istanbul University, Cerrahpaşa Faculty of Medicine
Northwestern University, Transplantation Center
Dr. Lütfi Kırdar Kartal Training and Research Hospital
Bezmialem Faculty of Medicine, Department of General Surgery
1992 to 1997 – Research Assistant at Istanbul University, Cerrahpaşa Faculty of Medicine, Department of General Surgery
1998 to 2002 – Fellow at Northwestern University, Transplantation Unit
2003 to 2008 – Chief Assistant at Kartal Training and Research Hospital
2008 to 2011 – Associate Professor at Kartal Training and Research Hospital
2011 to 2013 – Associate Professor at Bezmialem University Faculty of Medicine, Department of General Surgery
2013 to 2018 – Associate Professor at Kartal Training and Research Hospital
Professional Memberships
-Deutsche Gesellschaft Für Chirurgie
-American Society for Transplantation
-Breast Surgery Association
-Trauma Association
-Hepatobiliary Surgery Association
-Colorectal Surgery Association
Read moreEducation and Experience
Dr. Ramazan Gökhan Atış, born in Istanbul in 1978, graduated from Cağaloğlu Anatolian High School in 1996. He completed his medical education at Çapa Faculty of Medicine in 2002. Between 2002 and 2008, he received his specialization training at the Istanbul Şişli Etfal Training and Research Hospital Department of Urology, and obtained the title of Urology Specialist in February 2008. After working at Edremit Military Hospital between 2008 and 2009, he started working as a Urology specialist at Istanbul Göztepe Training and Research Hospital in 2009. In 2011, he underwent a 3-month Laparoscopy-Robotic Urology training at Heidelberg University Heillbronn Clinic. Between 2009 and 2014, he conducted numerous scientific research studies, especially in the field of endourology, and obtained the title of Associate Professor in September 2014. In 2017, he was elected as a board member of the Endourology Society and has been serving in this position since then. Since 2018, he has been actively involved in the Endourology working group of the European Association of Urology, Young Academic Urologists (EAU-YAU) Committee for a period of 2 years. In January 2021, he was appointed as a Professor at the Istanbul Medeniyet University Department of Urology.After that started working at Şişli Memorial Hospital in 2022. Prof. Dr. Ramazan Gökhan Atış, has more than 100 articles published in national and international journals.
Administrative Duties
Memberships in Scientific Organizations
Education
1991 to 1997 Istanbul University Cerrahpaşa Faculty of Medicine
1998 to 2003 Ministry of Health Göztepe Training and Research Hospital
Experience
1997 to 1998 Van Edremit Health Center
1998 to 2003 Ministry of Health Göztepe Training and Research Hospital, Resident Doctor
2004 to 2007 Sivas State Hospital, General Surgery Clinic, Specialist Doctor
2007 to Present Medical Park Bahçelievler Hospital, Associate Professor
Professional Memberships
-Turkish Medical Association
-Turkish Surgical Society
-Society of Bariatric and Metabolic Surgery
-Turkish Society of Colon and Rectal Surgery
-Society of Endocrine Surgery
Specializations
Cancer Surgery
Pancreatic Surgery
Bile Duct Surgery
Bariatric Metabolic Surgery
Oncological Surgery
Breast Surgery
Gastric cancer
Colon cancer
Thyroid Cancer
Obesity Surgery
Diabetes Surgeries
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Education
Ondokuz Mayıs University Faculty of Medicine (1991)
KTÜ Faculty of Medicine Farabi Hospital (Specialization.1998)
Istanbul University Çapa Faculty of Medicine (Laparoscopic Surgery Training, 2002)
Istanbul University Çapa Faculty of Medicine (Laparoscopic Antireflux Surgery Training, 2006)
Istanbul University Cerrahpaşa Faculty of Medicine (General Surgery Clinic Advance Laparoscopic Surgery, Laparoscopic Bariatric Surgery, Morbid Obesity and Oncological Cancer Surgery Training, 2010i)
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One of the world-renowned pioneers in gastrointestinal surgery. Has developed new techniques for the colon and rectum cancer treatment TaTMEТ and NOTES — applied now around the world.
Has performed over 15,000 surgeries.
Performs over 1,000 interventions a year using minimally invasive techniques.
President of the Association of Surgeons-Endoscopists in Europe.
Dr. is a graduate of Seoul National University College of Medicine and completed specialty training at Seoul National University Hospital, including a Fellowship at the University of Pittsburgh, USA. He also holds a degree from Kyoto University College of Medicine and is a member of several professional medical societies, including the Korean Medical Association, Korean Surgical Society, and Korean Society for the Research of Liver Cancer.
Read moreProf. Jong Kyun Lee is a highly experienced gastroenterologist specializing in the management of pancreatic, bile duct and gallbladder cancers, pancreatitis, and gallstones. He has worked at Samsung Medical Center and holds degrees from the Seoul National University College of Medicine and the University of California. He is a member of several organizations, including The Korean Society of Gastrointestinal Endoscopy, The Korean Society of Gastroenterology, and The Korean Pancreatobiliary Association.
Read moreProfessor Kyu Taek Lee is a top gastroenterologist from South Korea, specializing in the management of pancreatic, bile duct and gallbladder cancers. He is a Gastroenterology specialist at Samsung Medical Center and has degrees from Hanyang University College of Medicine, Stanford University School of Medicine, and Kyoto Second Red Cross Hospital. He is also a member of The Korean Society of Gastrointestinal Endoscopy and The Korean Society of Gastroenterology.
Read moreMedical Doctor Education: Maltepe University Faculty of Medicine, 2008, Istanbul/Turkey
General Surgery Residency: Istanbul University Faculty of Medicine, 2018, Istanbul/Turkey
Tokat Erba State Hospital, 2008-2012, Tokat/Turkey
Istanbul University Faculty of Medicine, 2012-2018, Istanbul/Turkey
Ağrı Doğubeyazıt State Hospital, 2018-2020, Ağrı/Turkey
Turkish Medical Association
Turkish Hepatobiliary Surgery Association
Trauma and Emergency Surgery Association
Turkish Surgical Association
Member of SICOB - Italian Society of Obesity Surgery and ACOI - Association of Italian Hospital Surgeons
Dr Braun is a board-certified general surgeon with over 25 years of experience specializing in gastrointestinal surgery, particularly in the treatment of gastroesophageal reflux disease (GERD) through Fundoplication surgery. He has performed over 500 successful Nissen and Toupet Fundoplication procedures, with a focus on minimally invasive laparoscopic techniques. His expertise extends to diagnosing complex cases of GERD and offering comprehensive treatment plans to improve patient outcomes.
He has carried out his main training experiences in various international institutions and specialization courses in general and digestive sy surgery, including a two-year training internship at Johns Hopkins University, Division of Hepatobiliary Pancreatic Surgery and numerous courses in Madrid, with Prof. E. Moreno Gonzales (Curso Internacional de Actualizaciòn en chirurgia General y del Aparato Digestivo) or in New Orleans (Medical Education at the 90th Annual Clinical Congress of the American College of Surgeons).
Dr. Braun has extensive expertise in the field of digestive surgery. He has focused on implementing advanced protocols and optimizing surgical techniques, while maintaining high standards of safety and patient care. He has collaborated with a multidisciplinary team to provide an integrated and personalized approach in the management of obese or digestive disorder patients, improving quality of life and reducing post-operative complications.
Read moreDr. Raj Nagarkar is a leading Surgical Oncologist with 19 years of experience. He has performed over 50,000 cancer surgeries. His main focus areas are Breast and Thoracic Surgical Oncology. He is involved in more than 200 clinical trials and has contributed to many national and international publications.
Dr. Nagarkar trained in Surgical Oncology at Tata Memorial Hospital, Mumbai. He also holds an MRCS from the Royal College of Surgeons, Edinburgh. He teaches DNB Superspecialty Surgical Oncology and Breast Surgery at Maharashtra University of Health Sciences. Dr. Nagarkar is dedicated to improving the quality of life for his patients.
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