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Best bariatric surgeons in Istanbul: TOP 127 doctors

Content meets the Bookimed Editorial Policy and is medically reviewed by
Fahad Mawlood - General practitioner. Winner of 4 scientific awards. Served in Western Asia. Former Team Leader of a medical team supporting Arabic-speaking patients. Now responsible for data processing and medical content accuracy.
Merve Guldali
Dietitian
6 years of experience
4.7
18 reviews
Turkey, Istanbul
Neolife Medical Center

Merve Guldali

Dietitian
6 years of experience

Areas of Interest:

  • Diabetes Dietitian
  • Obesity and Metabolic Surgery
  • Bariatric Dietitian
  • Type 1 Diabetes Nutrition
  • Carbohydrate Counting
  • Maternal and Child Nutrition (Breastfeeding and Postnatal Nutrition, Gestational Diabetes (Pregnancy Diabetes), Breast Milk, Transition to Solid Foods…)
  • Cardiovascular Diseases
  • Kidney Diseases and Dialysis
  • Liver Diseases
  • Gallbladder and Pancreas Diseases
  • Gastrointestinal System Diseases
  • Respiratory System Diseases
  • Nervous System Diseases
  • Bone and Joint Diseases
  • Malnutrition
  • Obesity and Bariatric Surgery (Sleeve Gastrectomy, Gastric Balloon, Gastric Botox)
  • Eating Disorders
  • Pre- and Post-Operative Nutrition
  • Enteral and Parenteral Nutrition
  • Weight Problems
  • Excessive Weight Gain
  • Hyperlipidemia
  • Type 1 Diabetes
  • Pregnancy and Nutrition
  • Sports Nutrition
  • Nutrition for Anorexia and Bulimia Patients
  • Weight Control in Children and Adolescents
  • Thyroid Disease Nutrition
  • Healthy Eating
  • Cardiovascular Diseases and Nutrition
  • Child Nutrition
  • Nutrition for Children and Adolescents
  • Reactive Hypoglycemia and Nutrition
  • Nutrition in Metabolic Diseases
  • Nutrition Programs for Eating Disorders
  • Non-Celiac Gluten Sensitivity
  • Corporate Nutrition Consultancy
  • Weight Loss Program
  • Carbohydrate Counting

Education:

  • 2014: Bachelor's Degree in Dietetics/Dietitian, Bahçeşehir University
  • 2018: Master's Degree in Nutrition and Dietetics, Bahçeşehir University

Work Experience:

  • 2024–Present: Neolife Medical Center
  • 2023–2024: Park 15 Clinics, Koşuyolu
  • 2019–2023: Doctor Nazif Bağrıaçık Kadıköy Hospital

Professional Trainings:

  • Memberships:
  • Scientific Events / Studies:
    • National Diabetes, Metabolism, and Nutrition Diseases Congress, 2021 (Bodrum, Muğla)
      Organized by: Turkish Diabetes Foundation and Turkish Diabetes Society
    • 3rd Diabetes Technologies Symposium, 2021 (Izmir)
      Organized by: Turkish Diabetes Foundation and Turkish Diabetes Society
    • 5th Winter School of Turkish Obesity Surgery Society, 2021 (E-Meeting)
    • 3rd Food and Nutrition Biennale, 2020 (Istanbul)
      Organized by: Food Enlightenment Platform
    • Bariatric Surgery Dietitian Certification, 2019 (Istanbul)
      Organized by: Tartı Academy
    • Psychodiet Training, 2019 (Istanbul)
      Organized by: Istinye University
    • 7th National Healthy Living Symposium Participation Certificate, 2018 (Istanbul)
      Organized by: Acıbadem University
    • PROBIOClass–Nutrition & Prebiotics & Probiotics Spring School Certification, 2018 (Istanbul)
      Organized by: Acıbadem University
    • Geriatric Dietitian Course Participation Certificate, 2018 (Istanbul)
      Organized by: Acıbadem University
    • Current Approaches in Sports Nutrition Symposium, 2018 (Istanbul)
      Organized by: Medipol University
    • Oncology and Nutrition Symposium, 2017 (Izmir)
      Organized by: Turkish Dietitians Association
    • 2nd National Nutrition and Dietetics Congress, 2017 (Istanbul)
    • BESVAK 5th Career Days, 2017 (Istanbul)
    • Education on the History, Production Process, and Use of Bulgur in Kitchens, 2017 (Istanbul)
    • Bariatric Surgery Dietitian Course within the 7th National Obesity Congress, 2016 (Istanbul)
    • Multidisciplinary Treatment Course within the 7th National Obesity Congress, 2016 (Istanbul)
    • Personal Development Course, 2015 (Istanbul)
      Organized by: Validebağ Neighborhood House
    • Nutrition Everywhere, 2015 (Istanbul)
    • Nutrition Academy, 2014 (Istanbul)
    • Nutrition, Food, and Culinary Culture in Anatolia, 2014 (Istanbul)
Read more

Areas of Interest:

  • Diabetes Dietitian
  • Obesity and Metabolic Surgery
  • Bariatric Dietitian
  • Type 1 Diabetes Nutrition
  • Carbohydrate Counting
  • Maternal and Child Nutrition (Breastfeeding and Postnatal Nutrition, Gestational Diabetes (Pregnancy Diabetes), Breast Milk, Transition to Solid Foods…)
  • Cardiovascular Diseases
  • Kidney Diseases and Dialysis
  • Liver Diseases
  • Gallbladder and Pancreas Diseases
  • Gastrointestinal System Diseases
  • Respiratory System Diseases
  • Nervous System Diseases
  • Bone and Joint Diseases
  • Malnutrition
  • Obesity and Bariatric Surgery (Sleeve Gastrectomy, Gastric Balloon, Gastric Botox)
  • Eating Disorders
  • Pre- and Post-Operative Nutrition
  • Enteral and Parenteral Nutrition
  • Weight Problems
  • Excessive Weight Gain
  • Hyperlipidemia
  • Type 1 Diabetes
  • Pregnancy and Nutrition
  • Sports Nutrition
  • Nutrition for Anorexia and Bulimia Patients
  • Weight Control in Children and Adolescents
  • Thyroid Disease Nutrition
  • Healthy Eating
  • Cardiovascular Diseases and Nutrition
  • Child Nutrition
  • Nutrition for Children and Adolescents
  • Reactive Hypoglycemia and Nutrition
  • Nutrition in Metabolic Diseases
  • Nutrition Programs for Eating Disorders
  • Non-Celiac Gluten Sensitivity
  • Corporate Nutrition Consultancy
  • Weight Loss Program
  • Carbohydrate Counting

Education:

  • 2014: Bachelor's Degree in Dietetics/Dietitian, Bahçeşehir University
  • 2018: Master's Degree in Nutrition and Dietetics, Bahçeşehir University

Work Experience:

  • 2024–Present: Neolife Medical Center
  • 2023–2024: Park 15 Clinics, Koşuyolu
  • 2019–2023: Doctor Nazif Bağrıaçık Kadıköy Hospital

Professional Trainings:

  • Memberships:
  • Scientific Events / Studies:
    • National Diabetes, Metabolism, and Nutrition Diseases Congress, 2021 (Bodrum, Muğla)
      Organized by: Turkish Diabetes Foundation and Turkish Diabetes Society
    • 3rd Diabetes Technologies Symposium, 2021 (Izmir)
      Organized by: Turkish Diabetes Foundation and Turkish Diabetes Society
    • 5th Winter School of Turkish Obesity Surgery Society, 2021 (E-Meeting)
    • 3rd Food and Nutrition Biennale, 2020 (Istanbul)
      Organized by: Food Enlightenment Platform
    • Bariatric Surgery Dietitian Certification, 2019 (Istanbul)
      Organized by: Tartı Academy
    • Psychodiet Training, 2019 (Istanbul)
      Organized by: Istinye University
    • 7th National Healthy Living Symposium Participation Certificate, 2018 (Istanbul)
      Organized by: Acıbadem University
    • PROBIOClass–Nutrition & Prebiotics & Probiotics Spring School Certification, 2018 (Istanbul)
      Organized by: Acıbadem University
    • Geriatric Dietitian Course Participation Certificate, 2018 (Istanbul)
      Organized by: Acıbadem University
    • Current Approaches in Sports Nutrition Symposium, 2018 (Istanbul)
      Organized by: Medipol University
    • Oncology and Nutrition Symposium, 2017 (Izmir)
      Organized by: Turkish Dietitians Association
    • 2nd National Nutrition and Dietetics Congress, 2017 (Istanbul)
    • BESVAK 5th Career Days, 2017 (Istanbul)
    • Education on the History, Production Process, and Use of Bulgur in Kitchens, 2017 (Istanbul)
    • Bariatric Surgery Dietitian Course within the 7th National Obesity Congress, 2016 (Istanbul)
    • Multidisciplinary Treatment Course within the 7th National Obesity Congress, 2016 (Istanbul)
    • Personal Development Course, 2015 (Istanbul)
      Organized by: Validebağ Neighborhood House
    • Nutrition Everywhere, 2015 (Istanbul)
    • Nutrition Academy, 2014 (Istanbul)
    • Nutrition, Food, and Culinary Culture in Anatolia, 2014 (Istanbul)
Read more
Osman Aktas
Gastrointestinal surgeon
33 years of experience
Turkey, Istanbul
Avicenna International Hospital

Osman Aktas

Gastrointestinal surgeon
33 years of experience

Dr. Osman Aktas has been serving as a general surgeon at Ataşehir Avicenna Hospital since 2005. Born in Kayseri in 1960, he graduated with his medical degree from Ankara University in 1983. Following his graduation, he fulfilled his military service in medical units for two years. He completed his general surgery residency at GATA from 1986 to 1990. After specializing in general surgery, He held key positions as head of general surgery departments and chief physician in several prominent military hospitals, including Tatvan, Diyarbakır, Ankara, and Manisa.

Dr. Osman has had a special focus on endoscopic surgery since 1995. He received advanced training in laparoscopic surgery techniques in Germany and has successfully performed a wide range of laparoscopic procedures. His expertise extends to gallbladder surgery, abdominal wall and inguinal hernia repairs, appendicitis, reflux and stomach surgeries, as well as complex cases such as gastrointestinal tumors, intestinal obstructions, and various other intestinal diseases, all managed through minimally invasive methods.

In 2002, Dr. Osman transitioned to the private sector, where he broadened his practice to include modern treatments for anal diseases like hemorrhoids, fistulas, and fissures, utilizing advanced techniques such as laser therapy.

Dr. Osman is also recognized for his significant contributions to oncological surgery. He has a wealth of experience in the surgical treatment of various cancers, including breast and thyroid cancer, where he has implemented new treatment methods that reduce the risk of complications. His surgical expertise spans critical cancer surgeries, such as the Whipple procedure for pancreatic cancer, colorectal cancer resections, gastric cancer, and other complex malignancies. Additionally, his skills in metabolic surgery have led to lasting outcomes for patients suffering from obesity and diabetes, ensuring a better quality of life through sustained weight loss and reduced risk of diabetes.

With his vast experience and advanced skills in both laparoscopic and cancer surgeries, Dr. Osman remains at the forefront of surgical excellence, offering innovative and comprehensive care to all his patients.

Read more

Dr. Osman Aktas has been serving as a general surgeon at Ataşehir Avicenna Hospital since 2005. Born in Kayseri in 1960, he graduated with his medical degree from Ankara University in 1983. Following his graduation, he fulfilled his military service in medical units for two years. He completed his general surgery residency at GATA from 1986 to 1990. After specializing in general surgery, He held key positions as head of general surgery departments and chief physician in several prominent military hospitals, including Tatvan, Diyarbakır, Ankara, and Manisa.

Dr. Osman has had a special focus on endoscopic surgery since 1995. He received advanced training in laparoscopic surgery techniques in Germany and has successfully performed a wide range of laparoscopic procedures. His expertise extends to gallbladder surgery, abdominal wall and inguinal hernia repairs, appendicitis, reflux and stomach surgeries, as well as complex cases such as gastrointestinal tumors, intestinal obstructions, and various other intestinal diseases, all managed through minimally invasive methods.

In 2002, Dr. Osman transitioned to the private sector, where he broadened his practice to include modern treatments for anal diseases like hemorrhoids, fistulas, and fissures, utilizing advanced techniques such as laser therapy.

Dr. Osman is also recognized for his significant contributions to oncological surgery. He has a wealth of experience in the surgical treatment of various cancers, including breast and thyroid cancer, where he has implemented new treatment methods that reduce the risk of complications. His surgical expertise spans critical cancer surgeries, such as the Whipple procedure for pancreatic cancer, colorectal cancer resections, gastric cancer, and other complex malignancies. Additionally, his skills in metabolic surgery have led to lasting outcomes for patients suffering from obesity and diabetes, ensuring a better quality of life through sustained weight loss and reduced risk of diabetes.

With his vast experience and advanced skills in both laparoscopic and cancer surgeries, Dr. Osman remains at the forefront of surgical excellence, offering innovative and comprehensive care to all his patients.

Read more
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