Best bariatric surgeons in Istanbul: TOP 35 doctors

• Specializes in Weight Loss Surgery, notably gastric sleeve and gastric balloon.
• Internationally trained with experience across Turkey.
• Performed over 1000 obesity surgery cases in 6 years.
• Member of Turkish Obesity Surgery Society, enhancing his expertise.
• Holds an Associate Professor title in General Surgery.
• Member of World Obesity Association and International Federation for the Surgery of Obesity.
• Offers online consultations for patients seeking weight loss surgery options.

Dr. Alaattin Ozturk is a respected General Surgeon from Turkey with 26 years of experience. He treats conditions such as gastrointestinal bleeding, abdominal pain, acid reflux, breast cancer, genital warts, gallstones, and hemorrhoids. He is skilled in advanced procedures, including gallbladder surgery, hernia repair, and hemorrhoidectomy.

Dr. Ozturk earned his medical degree from Uludag University. He completed his surgical training at Haydarpasa Numune Training and Research Hospital. He has published over 21 scientific articles. Dr. Ozturk is a member of the Turkish Surgical Association and the Endoscopic Laparoscopic Surgery Association. He is dedicated to providing high-quality surgical care.

• 2021 - 2022, Tokat/Turkey
  TOKAT STATE HOSPİTAL
  General Surgeon
• 2015 - 2020, Samsun/Turkey
  ONDOKUZ MAYIS UNİVERSİTY, FACULTY OF MEDİCİNE, DEPARTMENT OF GENERAL SURGERY
  Research Assistant
• 2013 - Currently, İstanbul/Turkey
  MEMORİAL ATAŞEHİR HOSPİTAL
  General Surgeon
• 2013 - 2015, Erzincan/Turkey
  ERZİNCAN MENGÜCEK GAZİ TRAİNİNG AND RESEARCH HOSPİTAL
  General Practitioner

• Specializes in Weight Loss Surgery options: gastric bypass, sleeve gastrectomy.
• International training in Turkey, advancing skills in bariatric procedures.
• Member of Turkish Association of Endoscopic Laparoscopic Surgery.
• Completed a Bariatric Surgery masterclass in 2017.
• European Society of Coloproctology member, relevant for post-surgical care.
• Offers online consultations for Weight Loss Surgery candidates.

Dr. Kaplan Baha Temizgonul is a bariatric surgeon with expertise in advanced laparoscopic and bariatric procedures. He has been practicing since 2015. He trained at Bakirkoy Dr. Sadi Konuk Training and Research Hospital in Istanbul, one of Turkey’s busiest centers for laparoscopic surgery.

He graduated from Pamukkale University Faculty of Medicine in 2005. This university is known for its work in sleeve gastrectomy. Dr. Temizgonul also has experience in war surgery from his service at the Syrian border. He has published several peer-reviewed articles and is known for his caring approach to patients.

Dr. Burak Kavlakogluu is a Professor who specializes in Obesity Surgery. He currently practices at Memorial Bahçelievler Hospital in Istanbul. He has over 30 years of experience and has worked at leading hospitals, including Bahçeşehir International University, Medicine Hospital Istanbul, Kolan Hospital, and Mighty Hospital.

Dr. Kavlakogluu has served in key leadership positions, such as Chief Physician and Head of the General Surgery Department at several institutions. He completed his medical degree at Ankara University Faculty of Medicine. He received his General Surgery Specialty Training at Kartal Dr. Lütfi Kirdar Training and Research Hospital. He became an Associate Professor in 2012 and was promoted to Professor in 2020.

Assoc. Prof. Dr. Güner ÇAKMAK is a highly skilled and experienced specialist in General Surgery, currently practicing at Lokman Hekim University İstanbul Hospital. With a medical degree earned from Haydarpaşa Numune Hospital in 1997, he has built an extensive career, focusing on various advanced surgical techniques. His areas of expertise include laparoscopic surgery, bariatric and metabolic surgery, hepatopancreatobiliary surgery, and various types of laparoscopic gastrointestinal surgeries, including those for hernias, reflux, and esophageal issues. He is also highly experienced in hemorrhoid surgery and surgeries for anal fistulas and fissures.

Throughout his career, Dr. Çakmak has made significant contributions to medical literature, having published over 43 articles in international peer-reviewed journals and 16 in national journals. He is also the author of 20 technical notes, case reports, and research articles. His commitment to advancing medical knowledge is reflected in the numerous awards he has received, with a total of 9 prizes recognizing his exceptional work in surgery. Fluent in Turkish, English, and German, Dr. Çakmak offers comprehensive care to his patients, employing the latest minimally invasive techniques to ensure the best outcomes.

At Lokman Hekim University İstanbul Hospital, he continues to provide expert care, focusing on complex surgeries, with an emphasis on laparoscopic and metabolic procedures. His work is marked by a dedication to patient well-being and continuous professional development, making him a trusted choice for individuals seeking high-quality surgical care in Turkey.

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EDUCATION

2022

Associate Professor

2017 - 2020, Istanbul/Turkey

University of London, School of Hygiene and Tropical Medicine

Master’s Program in Clinical Trials

2013, Istanbul/Turkey

AMERICAN HOSPITAL, IVF UNIT

Ministry of Health Subspecialty Training in Reproductive Medicine

2005 - 2010, Istanbul/Turkey

İSTANBUL GÖZTEPE TRAINING AND RESEARCH HOSPITAL

Residency in Obstetrics and Gynecology

1998 - 2004, Istanbul/Turkey

İSTANBUL UNIVERSITY, CERRAHPAŞA FACULTY OF MEDICINE

Medical Doctor (M.D.) Education                                                                      

Prof. Dr. Erman Aytac is a distinguished surgeon and academician specializing in colorectal surgery, digestive system oncology, and minimally invasive surgical techniques. Currently serving as a Professor of Surgery at Memorial Healthcare Group's Bahçelievler Hospital in Istanbul, he combines advanced surgical expertise with extensive research experience to provide comprehensive care for patients with complex gastrointestinal conditions.

2018 - Present, Istanbul/Istanbul/Türkiye

MEMORIAL BAHCELIEVLER HOSPITAL

General Surgery Specialist

2016 - 2017, Istanbul/Istanbul/Türkiye

FLORANCE NIGHTINGALE KADIKOY AND ATAŞEHİR HOSPITALS

Director of the Surgery Center for Esophageal and Gastric Diseases

2015 - 2016, Istanbul/Istanbul/Türkiye

FLORANCE NIGHTINGALE KADIKOY HOSPITAL

Director of Colon and Rectum Surgery and Gastrointestinal System Motility Unit

2012 - 2016, Istanbul/Istanbul/Türkiye

TC ISTANBUL SCIENCE UNIVERSITY GENERAL SURGERY DEPARTMENT

Faculty Member, Advanced Laparoscopic Surgery

2011 - 2012, Istanbul/Istanbul/Türkiye

MINISTRY OF HEALTH HAYDARPASA NUMBER EA HOSPITAL

Chief of General Surgery Clinic

2008 - 2011, Istanbul/Istanbul/Türkiye

MINISTRY OF HEALTH HAYDARPASA NUMBER EA HOSPITAL

Deputy Chief of General Surgery Clinic

2005 - 2008, Istanbul/Istanbul/Türkiye

MINISTRY OF HEALTH HAYDARPASA NUMBER EA HOSPITAL

Chief Assistant of General Surgery Clinic

2003 - 2005, Istanbul/Istanbul/Türkiye

MINISTRY OF HEALTH SISLI ETFAL EA HOSPITAL

Chief Assistant of General Surgery Clinic

1997 - 2002, Istanbul/Istanbul/Türkiye

TC ISTANBUL UNIVERSITY CERRAHPAŞA MEDICAL FACULTY

Clinical Chief Assistant of the Department of General Surgery

Dr. Ersan Eroglu is an Associate Professor and general surgery specialist. He has served at Memorial Bahçelievler Hospital since 2018. He has been an Assistant Professor at Istanbul Bilim University since 2014. He also lectures at Istanbul Arel University since 2023. He earned his MD from Fırat University. He completed his general surgery residency at Haydarpaşa Numune.

He has authored 16 scientific articles. He has 25 national and 3 international congress presentations. He won First Prize in Turkey for laparoscopic right hemicolectomy in ileocecal neuroendocrine tumors. He contributed a translation to the SAGES Hernia Repair Manual (laparoscopic TEP/TAPP). He is a member of the Turkish Medical Association, the Turkish Surgical Society, and the Colon and Rectal, Bariatric and Metabolic, and Endocrine Surgery societies.

Prof. Dr. Samet Yardımcı
Obezite ve Metabolik Cerrahi, Gastroenteroloji Cerrahisi, Genel Cerrahi Uzmanı

İlk ve orta öğrenimini Antakya’da tamamladıktan sonra 1997 yılında Ankara Üniversitesi Tıp Fakültesi’ne kabul edilerek Tıp eğitimine başladı. 2003 yılında Tıp fakültesinden mezun olduğu sene tıpta uzmanlık sınavını kazanarak Haydarpaşa Numune Eğitim ve Araştırma Hastanesi’nde Genel Cerrahi asistanlığına başladı.

2008-2009 yıllarında Amerika Birleşik Devletleri’nin Houston kentinde MD Anderson kanser merkezi’nde ve Memorial Herrman hastanelerinde kanser cerrahisi ve organ nakli konularında eğitim aldı. Türkiye’ye döndükten sonra 2009 yılında yapılan genel cerrahların katıldığı yan dal sınavında Türkiye birincisi oldu. Bu sınav başarısının peşinden 2009-2012 yılları arasında Türkiye Yüksek İhtisas Hastanesi’nde Gastroenteroloji Cerrahisi (sindirim sistemi cerrahisi) eğitimi aldı.

2012 yılında Türkiye’nin en genç Gastroenteroloji Cerrahı oldu ve Marmara Üniversitesi Pendik Eğitim ve Araştırma Hastanesine atandı. 2012 – 2018 yılları arasında, Marmara Üniversitesi Tıp Fakültesi öğrencilerine ve genel cerrahi asistanlarına birçok ders verdi, hastalara yönelik ve cerrahlara yönelik birçok eğitim faaliyetinde rol aldı. İleri laparoskopik cerrahi, Obezite ve Metabolik cerrahi alanında çalıştı, ayrıca organ nakli ve İnflamatuar barsak hastalıkları cerrahisi ünitelerinin kurulmasında aktif olarak rol aldı. 2017 mart ayında yapılan sınavla Doçent ünvanınına layık görüldü.

Dr. Ozdenskaya has been practicing medicine since 1998, and has worked in several hospitals and clinics in the Istanbul area. Since 2012 he has been working as a general specialist in obesity surgery at Medipol Clinic, performing laparoscopic gastric sleeve resection, stomach resection with the da Vinci robot, gastric balloon and mini-gastric bypass operations.

Dr. Gokhan Yilmaz is an experienced general surgeon with nearly 20 years in medical practice. He is known for his skill in complex surgical procedures. He earned his Master’s Degree from Istanbul University Çapa Faculty of Medicine. He completed his Doctorate in General Surgery at Okmeydanı Training and Research Hospital, one of Turkey’s leading institutions.

Dr. Yilmaz worked as a General Surgery Specialist at Zonguldak Atatürk State Hospital for 5 years. He then served at Sancaktepe Şehit Prof. Dr. İlhan Varank Training and Research Hospital for 3 years. In these roles, he managed a wide range of surgical cases. He also served as an Assistant Professor at Istanbul Medipol University, where he trained future surgeons and contributed to research.

Dr. Yilmaz is currently part of the General Surgery Department at Medipol University Pendik Hospital. He provides advanced treatments and high-quality patient care. His experience in state hospitals, research centers, and universities highlights his dedication to surgical excellence and patient safety.

Dr. Ozden Gul is a general surgeon trained at Istanbul University Cerrahpaşa Faculty of Medicine. She completed her general surgery residency at Haydarpaşa Numune Training and Research Hospital. She has decades of surgical experience and is fluent in English.

Her practice includes gastrointestinal surgery (gallbladder disease, hernias, appendicitis, GI disorders). She also treats endocrine conditions (thyroid, parathyroid, adrenal) and breast disease, both benign and malignant. She manages emergency and trauma cases. She offers minimally invasive laparoscopic surgery.

She has worked at Haydarpaşa Numune, Bakırköy, Taksim First Aid, Uzunköprü State, Keşan State, Beykoz Medical Center, and Medivia Hospital. She is known for meticulous technique and patient-centered care.

Asst. Prof. Dr. Ömer Bilgehan Poyrazoğlu is a general and bariatric surgeon with over 20 years of clinical and academic experience. He graduated from Erciyes University Faculty of Medicine. He completed his general surgery specialization at the same institution.

His practice focuses on bariatric and metabolic surgery. He also performs advanced laparoscopic and robotic procedures, gastrointestinal and hepatobiliary surgery, and endoscopy. He received advanced training in obesity and robotic surgery in France, Ankara, and Istanbul. He has performed many procedures for local and international patients.

Dr. Poyrazoğlu is a member of the Turkish Surgical Society, Turkish Liver Transplant Association, Turkish Medical Association, and IFSO. He has published in international peer‑reviewed journals and presented at leading surgical meetings. He provides safe, modern, evidence‑based care.

General Surgery 

Colorectal Surgery 

Obesity and Metabolic Surgery 

Medical Director 

Brief Curriculum Vitae 

I was born in Trabzon on 15.07.1969. After I attended Ismetpaşa Primary School and Cumhuriyet Secondary School, I was graduated from Trabzon High School. I had medical education and training in School of Medicine of Karadeniz Technical University from 1986 to 1992. I worked as medical practitioner in Alacahan subdistrict, Kangal District, Sivas City in 1992-1993 and in Sivas Police Headquarters to fulfill the conscription. I was assigned as Health Group Manager and Medical Practitioner in Dernekpazarı District of Trabzon in 1993-1994. I passed the Examination for Medical Specialty in 1995 and I had my residency training and education at Department of General Surgery in Istanbul School of Medicine of Istanbul University from 1995 to 2000. I was awarded the title of “General Surgeon” after I submitted the medical specialty thesis titled “Relationship between gastrointestinal tumors and HLA” in 2001. After I worked at a privately owned hospital in 2000-2002, I started working in General Surgery Clinic of Bakırköy Dr. Sadi Konuk Training and Research Hospital in 2003. I had rotation in General Surgery Clinic of School of Medicine in Istanbul University for 9 months in 2007. I was awarded the title “Associate Professor of General Surgery” in 2010. I undertook Management duties in Şişli Hamidiye Etfal Training and Research Hospital from November 2012 to December 2013 and in Bakırköy Dr. Sadi Konuk Training and Research Hospital from December 2013 to April 2015. I had been Head of Education and Administrative Affairs, General Surgery clinic at Bakırköy Dr. Sadi Konuk Training and Research Hospital since 2010. I am Medical Director and General Surgeon at VM Medical Park Florya Hospital in Istanbul Aydın University as of 2017. 

I have intentionally dealt with renal transplantation during my residency education. After I was awarded the title “medical specialist”, I participated to diagnostic & therapeutic endoscopy, bariatric surgery, laparoscopy and robotic surgery educations abroad for short periods. I am intensively dealing with any and all laparoscopic surgical procedures (especially bariatric and gastrointestinal system surgery) and diagnostic and therapeutic endoscopic procedures (gastroscopy, colonoscopy, ERCP, endoscopic ultrasound) in this clinic since 2003 and I also play the role of trainer. I do and train others about General Surgery procedures with Da Vinci Robotic system since 2010. 

I authored 74 papers that are published in SCI and SCI-e journals and 55 papers that are published in local journals, along with 7 book chapters and 86 papers presented in local congresses and 180 papers presented in international congresses. 

I am member of Turkish Surgical Association, Turkish Association of Trauma and Emergency Surgery, Turkish Association of Endoscopic – Laparoscopic Surgery, Turkish Association of Obesity Surgery, Turkish Transplantation Centers Coordination Association and Istanbul Surgical Association. I am also member of International Active Member of Society of American Gastrointestinal Endoscopic Surgeons (SAGES), International Active Member of European Association for Endoscopic Surgery (EAES), International Active Member of International Association of Surgeons, Gastroenterologists, Oncologists (IASGO), International Active Member of International School of Surgical Oncology (ISSO), International Active Member of International Federation Surgical Obesity (IFSO). 

Date of Birth: July 15th, 1969 

Educational Status: 

Bachelor’s Degree School of Medicine Karadeniz Technical University 1992 

Medical Specialty Department of General Surgery, Istanbul School of Medicine İstanbul University 2001 

Title of Medical Specialty Thesis (abstract is attached) and Supervisor: 

1. “Relationship between gastrointestinal tumors and HLA”. February 2001 Supervisor: Prof. Uluğ Eldegez, M.D. 

General Surgeon Büyük Anadolu Hospital 2001-2003 

General Surgeon Bakırköy Dr Sadi Konuk Training and Research Hospital 2003-2006 

General Surgeon Istanbul University Emergency Surgery Clinic, Department of General Surgery, Istanbul School of Medicine 2006-9 months 

General Surgeon Bakırköy Dr Sadi Konuk Training and Research Hospital 2006-2010 

Associate Professor of General Surgery Bakırköy Dr Sadi Konuk Training and Research Hospital 2010-…

Head of Training and Administrative Affairs, General Surgery Clinic Bakırköy Dr Sadi Konuk Training and Research Hospital 2010 - …

 Doctorate thesis / proficiency in art studies supervised: 

1. Ede, B., “Changes in Thyroid Hormones After Thyroid Surgery”, Bakırköy Dr Sadi Konuk Training and Research Hospital 2006. 

2. Dodur B., “Factors Influencing Mortality and Morbidity in Gastrointestinal Bleeding” Bakırköy Dr Sadi Konuk Training and Research Hospital 2006. 

Duties undertaken in Projects: 

1. “Enteral Stents for Colonic Obstructions (ESCO): Prospective, randomized European multisentric study, comparing enteral stent followed by elective surgery versus emergency surgical treatment in malignant colonic obstruction. “ European Association for Endoscopic Surgery (EAES) Clinical Trial Center (CTC) Clinical Trial gov. Identifier: NCT00591695 

2. A phase III, randomized, double-blind, parallel group efficiency and safety study that compares safety and efficiency of oral dabigatran etexilate (150 mg BID) with warfarin (INR = 2.0-3.0) in semiannual treatment of acute symptomatic thromboembolism following initial treatment with a parenteral anticoagulant agent, which is approved for the relevant indication, minimum for five days – RECOVER II” Protocol code 1160.46

Editorialships: 

1. General Surgery Department, Advisory Board, Turkish Clinics Medical Sciences Journal, 2010 

2. “Global Journal of Surgery” Editorial Board 2010 

Scientific Organization Memberships: 

1. Turkish Surgical Association 

2. Association of Trauma and Emergency Surgery 

3. Turkish Association for Endoscopic and Laparoscopic Surgery 

4. Turkish Obesity Surgery Society 

5. Organ Transplantation Centers Coordination Association 

6. Istanbul Surgical Association 

7. International Active Member of Society of American Gastrointestinal Endoscopic Surgeons (SAGES). 

8. International Active Member of European Association for Endoscopic Surgery (EAES) 

9. International Active Member of International Association of Surgeons, Gastroenterologists, Oncologists (IASGO). 

10. International Active Member of International School of Surgical Oncology (ISSO). 

11. International Active Member of International Fedaration Surgical Obesity (IFSO)

Education:

• Bachelor of Science (MD): Faculty of Medicine, Uludag University, 1989

Specialized Education and Experience:

• General Surgery Specialist Degree: Ankara Numune Training and Research Hospital, 1997
• Fellowship: Gastroenterology Surgery, Türkiye High Specialization Hospital, 2005

Academic Career:

• Associate Professor: General Surgery, Inonu University, 2011
• Professorship: General Surgery, İnönü University, 2017

Dr. Mehmet Mehdi Deniz is an Associate Professor and general and bariatric surgeon at Vital Hospital. He has over 15 years of surgical experience, starting his career in 2008. His main areas of expertise are bariatric surgery, hernia repair, gastrointestinal disorders, and minimally invasive procedures. He performs Roux-en-Y gastric bypass and advanced laparoscopic surgeries.

Dr. Deniz is also an active medical researcher. He has co-authored more than nine international peer-reviewed publications, which have received over 180 citations. He holds the Turkish Surgical Association’s Competency Certificate (2011) and is a member of the Turkish Surgical Association, BMCD, and Turkish Medical Association.

As an educator, Dr. Deniz has taught key courses to more than 250 medical students. He has also attended over ten advanced surgical workshops. This shows his dedication to ongoing learning and surgical innovation.