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BARIATRIC SURGERY · MEMORIAL BAHÇELIEVLER

Assoc. Prof. Mehmet Celal Kızılkaya, MD

Associate Professor of General Surgery — Obesity and Metabolic Surgery · Memorial Bahçelievler Hospital — Obesity and Metabolic Surgery Center
Assoc. Prof. Mehmet Celal Kızılkaya is a clinical Associate Professor at Memorial Bahçelievler Hospital's Obesity and Metabolic Surgery Center (since 2025). MD Cerrahpaşa Faculty of Medicine (2008); General Surgery specialty completed at Haseki Training and Research Hospital (2014); Associate Professor (2023). Fellow of the International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO). His operative focus includes laparoscopic sleeve gastrectomy, gastric bypass, anti-reflux surgery and endocrine surgery.
10+
years in surgery
IFSO
fellow
Bariatric SurgerySleeve GastrectomyGastric BypassLaparoscopic SurgeryEndocrine SurgeryIFSO Fellow
A BergemHealth coordinator arranges contact with the professor within 24–48 hours on business days.
Direct contract with BergemHealth
CONSULTATION LANGUAGES
TR Turkish · native
EN English · professional
RU Russian · via BergemHealth coordinator
UK Ukrainian · via BergemHealth coordinator
ISTANBUL · 05/2026
EDUCATION & CAREER

Timeline

Career milestones.

2014-2015
General Surgery Specialist (compulsory service)
Muş Bulanık State Hospital
2015-2018
General Surgery Specialist
SBU Samsun Training and Research Hospital
2018-2023
Specialist → Chief Assistant → Associate Professor
SBU Istanbul Kanuni Sultan Süleyman Training and Research Hospital
2023-2025
Associate Professor of General Surgery
Acıbadem Health Group / Acibadem Atakent
2025-present
Klinik Doçent / Surgeon, Obesity and Metabolic Surgery Center
Memorial Bahçelievler Hospital
PUBLICATIONS

Scientific work

Selected peer-reviewed publications.

  • 2024
    Lancet
    «Global burden of metabolic diseases, 1990-2021»
    · co-author · 342 citations
  • 2024
    EClinicalMedicine
    «Burden of disease attributable to high body mass index: an analysis of data from the Global Burden of Disease Study 2021»
    · co-author · 227 citations
  • 2021
    Lancet Diabetes Endocrinol
    «Global 30-day outcomes after bariatric surgery during the COVID-19 pandemic (GENEVA): an international cohort study»
    · co-author · 78 citations
  • 2021
    Int J Obes (Lond)
    «30-day morbidity and mortality of sleeve gastrectomy, Roux-en-Y gastric bypass and one anastomosis gastric bypass: a propensity score-matched analysis of the GENEVA data»
    · co-author · 60 citations
  • 2021
    Obes Surg
    «30-day morbidity and mortality of bariatric surgery during the COVID-19 pandemic: a multinational cohort study of 7704 patients from 42 countries»
    · co-author · 58 citations
  • 2024
    Sci Rep
    «Resected gastric volume/number of staplers fired ratio as a tool in predicting complication and midterm results in sleeve gastrectomy»
    · first author
CLINIC

Where they practise

Direct contract with BergemHealth at every listed clinic.

PRIMARY CLINIC
Memorial Bahçelievler Hospital
The oncology centre of the Memorial network. 320 beds, 15 operating theatres (one hybrid), 49 ICU beds. Full cycle — from diagnostics to follow-up. Varian linear accelerators, CyberKnife. Opened in…
Open clinic profile
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