Assoc. Prof. Didem Öncel Yakar is an experienced general surgeon specializing in complex hepatobiliary and pancreatic surgery as well as trauma care. A graduate of Istanbul University, Istanbul Faculty of Medicine, she combines extensive surgical practice with teaching and clinical leadership. Since 2022, she has been affiliated with Acibadem Health Group, contributing to high-quality, multidisciplinary patient management. An active member of several prestigious surgical associations, including the Turkish Hepato-Pancreato-Biliary Surgery Association, she is recognized for her clinical skill and evidence-based practice. Dr. Öncel Yakar is dedicated to improving surgical outcomes through precision, professionalism, and a commitment to excellence in every procedure.

Specialities

Assoc. Prof. M.D. Didem Öncel Yakar specializes in treating a range of conditions within their field. Learn more about the treatments, procedures, and medical areas where they bring extensive experience and trusted care.

Educational Info

Learn about Assoc. Prof. M.D. Didem Öncel Yakar’s medical journey — from education to specialization — and how their academic training supports their commitment to patient care.

  • checkedIstanbul University Istanbul Faculty of Medicine General Surgery(M.Ch. )
  • checkedIstanbul University Faculty of Medicine(M.Ch. )

Memberships

Assoc. Prof. M.D. Didem Öncel Yakar is an active member of several esteemed medical organizations, ensuring alignment with the latest clinical guidelines and ethical practices.

  • checkedTurkish Surgical Association
  • checkedTurkish Hepato Pancreato Biliary Surgery Association
  • checkedNational Society for Trauma and Emergency Surgery

Experience

With a career spanning 4+ years, Assoc. Prof. M.D. Didem Öncel Yakar has served in various esteemed medical centers, contributing to both outpatient and surgical care across a wide spectrum of cases.

  • checkedAcibadem Health Group( 2022-01-01 Current)
  • checkedAcibadem University(Faculty Member 2016-01-01 - 2020-01-01)
  • checkedAcibadem Health Group( 2013-01-01 Current)
  • checkedMemorial Ataşehir Hospital(Department of General Surgery and Organ Transplantation 2008-01-01 - 2013-01-01)
  • checkedVKV American Hospital(Department of General Surgery, Liver-Pancreas Surgery Unit 2007-01-01 - 2008-01-01)
  • checkedIstanbul University Istanbul Faculty of Medicine(Liver-Pancreas-Biliary Tract Surgery Unit 2006-01-01 - 2007-01-01)
  • checkedUniversity of Southern California, Keck School of Medicine Division of Trauma and Surgical Critical Care(Research Fellow 2005-01-01 - 2006-01-01)
  • checkedVKV American Hospital(Department of General Surgery, Endocrine Surgery Unit 2004-01-01 - 2005-01-01)

Frequently Asked Questions

Explore answers to commonly asked questions related to treatments, consultations, and services provided by Assoc. Prof. M.D. Didem Öncel Yakar.

Patient Experience Icon

Patients share their experiences and feedback about their treatment with Assoc. Prof. M.D. Didem Öncel Yakar, reflecting the doctor’s commitment to quality care, advanced treatment, and patient-focused service. Explore real stories from individuals who have trusted Assoc. Prof. M.D. Didem Öncel Yakar with their health.

I brought my 8-year-old son, Ali,...
Oct 28, 2025
Doctor: Assoc. Prof. M.D. Didem Öncel Yakar Hospital: Atasehir Medical Center

I brought my 8-year-old son, Ali, to Dr. Didem Öncel Yakar after he developed a painful, recurrent umbilical hernia from wrestling. I was terrified at the thought of surgery for my child. Dr. Didem was incredible—she explained everything in simple terms to Ali, showing him pictures and letting him hold the laparoscopic camera (disconnected, of course!). She performed a minimally invasive repair. Ali was back to playing football in three weeks, with barely a scar. Her gentle, child-centric approach turned a scary experience into an adventure for him.

As a 72-year-old with multiple comorbidities,...
Sep 12, 2025
Doctor: Assoc. Prof. M.D. Didem Öncel Yakar Hospital: Atasehir Medical Center

As a 72-year-old with multiple comorbidities, including diabetes, my complex gallbladder surgery was deemed high-risk by several surgeons. Dr. Didem Öncel Yakar at Atasehir Medical Center reviewed my case with unwavering calm. She didn't just see the diseased organ; she saw the whole patient. Her pre-operative optimization was meticulous. The robotic-assisted cholecystectomy went flawlessly. Her post-op visits were thorough, and she personally coordinated with my endocrinologist. Her expertise and holistic care gave me, an elderly man, a smooth recovery I didn't think was possible.

This was no routine checkup. I...
Sep 19, 2025
Doctor: Assoc. Prof. M.D. Didem Öncel Yakar Hospital: Atasehir Medical Center

This was no routine checkup. I had a sudden, severe abdominal pain that landed me in the ER at midnight. Dr. Didem was the on-call surgeon. Her decisive yet composed demeanor in the emergency room was immediately reassuring. She quickly diagnosed a perforated duodenal ulcer—a true surgical emergency. She explained the critical situation to my family without causing panic and performed life-saving laparoscopic surgery within the hour. Her skill in that high-pressure scenario, and her compassionate follow-up, made me feel like I was in the hands of a true guardian angel.

I visited Dr. Didem for a...
Nov 28, 2025
Doctor: Assoc. Prof. M.D. Didem Öncel Yakar Hospital: Atasehir Medical Center

I visited Dr. Didem for a follow-up consultation a year after she performed a complex abdominal wall reconstruction for a major incisional hernia. My initial surgery had failed twice elsewhere. This wasn't just a quick check; she spent 40 minutes examining the site, reviewing my activity levels, and discussing long-term core strengthening. She remembered personal details about my job as a musician. Her approach treats the follow-up as critically as the surgery itself, ensuring lasting results. Her dedication to aftercare is what truly sets her apart from any other surgeon I've met.


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Speaks: Turkish, English

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M.D. Hüsnü Mert Arinalp
  • 4 Years Experience
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Speaks: Turkish, English

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Prof. M.D. Mehmet Temel Yilmaz
  • 2 Years Experience
  • Internal Medicine Specialist
Speaks: Turkish, English

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M.D. Tuğçe Alkoç
  • 6 Years Experience
  • Emergency and Trauma
Speaks: Turkish, English

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M.D. Buğra Gültekin
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  • Emergency and Trauma
Speaks: Turkish, English

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Speaks: Turkish, English

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Dr. Berrin Arslan
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Speaks: Turkish, English

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