Prof. Özlem Sönmez is a respected medical oncologist and professor who brings a powerful combination of clinical expertise and academic leadership to her practice. She earned her professorship at Acıbadem Mehmet Ali Aydınlar University and has been providing care within the Acıbadem Health Group since 2020. Her work focuses on delivering personalized, evidence-based cancer treatment, leveraging the latest research and therapeutic advances to develop effective care plans for her patients.

Prof. Sönmez differentiates herself through her active international presence and dedication to mentoring future oncologists. Her memberships in top-tier societies like the American Society of Clinical Oncology (ASCO) and the European Society for Medical Oncology (ESMO) ensure her practice aligns with global standards. Patients benefit not only from her deep knowledge and compassionate approach but also from her role in shaping the future of oncology, ensuring access to thoughtful, innovative, and comprehensive cancer care.

Memberships

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

  • checkedAmerican Society Of Medical Oncologist (ASCO)
  • checkedTurkish Medical Association Istanbul Medical Chamber
  • checkedEuropean Society Of Medical Oncology (ESMO)
  • checkedEuropan School Of Oncology (ESO)

Experience

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

  • checkedAcibadem Health Group( 2020-01-01 Current)
  • checkedAcibadem Health Group(Halen 2016-01-01 Current)
  • checkedInternal Medicine, Department of Medical Oncology Yeditepe University Faculty of Medicine(Internal Medicine and Medical Oncology Specialist Assistant Professor 2014-01-01 Current)
  • checkedInternal Medicine, Department of Medical Oncology Yeditepe University Faculty of Medicine(Internal Medicine and Medical Oncology Specialist 2013-01-01 - 2014-01-01)
  • checkedS.B Sakarya University Training and Research Hospital(Internal Medicine and Medical Oncology Specialist 2011-01-01 - 2013-01-01)
  • checkedDr. Abdurrahman Yurtaslan Ankara Oncology Hospital(Subspecialty Research Assistant 2008-01-01 - 2011-01-01)
  • checkedHaseki Training and Research Hospital(Research Assistant 2003-01-01 - 2008-01-01)
  • checkedTurkish Kidney Foundation Ahmet Ermiş Dialysis Center(Hemodialysis Responsible Physician 1996-01-01 - 2003-01-01)

Frequently Asked Questions

Explore answers to commonly asked questions related to treatments, consultations, and services provided by Prof. M.D. Özlem Sönmez.

Patient Experience Icon

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

I brought my 4-year-old son, Leo,...
Dec 05, 2025

I brought my 4-year-old son, Leo, to Dr. Sönmez after three different pediatricians couldn't explain his persistent low-grade fever and fatigue. While others dismissed it as 'just a virus,' Dr. Sönmez spent an hour examining him, asking about our recent family trip to the Black Sea coast. She connected his symptoms to a tick bite we hadn't even noticed! Her gentle manner kept Leo calm during blood tests that confirmed early-stage Lyme disease. She coordinated with a pediatric infectious disease specialist at Acibadem Maslak, and now Leo is fully recovered. She didn't just treat a child; she treated our entire family's anxiety.

As a 78-year-old with diabetes, hypertension,...
Aug 02, 2025

As a 78-year-old with diabetes, hypertension, and now unexplained weight loss, I felt like a collection of charts to most doctors. Dr. Özlem Sönmez changed that. During my routine checkup, she noticed a slight tremor in my hand that others had missed for years. Instead of adding another pill, she paused my complex medication list, suspecting an interaction was causing the weight loss and new tremor. She methodically unprescribed, one drug at a time, over two weeks of daily follow-up calls from her nurse. The tremor vanished, and I started gaining weight. She manages my five conditions not as separate problems, but as one whole person. Her approach is a rare art in modern medicine.

My story isn't about a long-term...
Nov 26, 2025

My story isn't about a long-term illness, but a terrifying Saturday. I developed sudden, crushing chest pain and was rushed to Acibadem Maslak's ER. Dr. Sönmez was the internal medicine specialist on call. While the ER team ruled out a heart attack, she was the one who asked about the 'insignificant' fall I'd had gardening two days prior. She ordered a specific CT scan others thought unnecessary, which revealed a dissecting aortic aneurysm—a silent time bomb. Her swift decision and direct coordination with the vascular surgery team saved my life that night. She visited me in the ICU every morning, explaining each step in plain Turkish. I owe her my life for seeing what wasn't obvious.

I'm a 42-year-old software engineer who...
Aug 24, 2025

I'm a 42-year-old software engineer who went to Dr. Sönmez for what I thought was a simple follow-up for acid reflux. I mentioned in passing that I'd been feeling 'off'—mild headaches and occasional dizziness when coding for long hours. Instead of refilling my prescription and sending me off, she conducted a neurological exam right there. She discovered a subtle visual field defect I had unconsciously adapted to. This led to an MRI that detected a benign pituitary tumor. The sequence of events—from a routine visit to brain surgery consultation—was handled with such seamless, calm efficiency. She navigates the complex machinery of the human body and the hospital system with equal mastery. My 'routine' visit was anything but.


Prof. M.D. Canan Ayabakan
  • Years Experience
  • Pediatric Cardiologist

MediFyr Plus Acibadem Maslak Hospital, Istanbul

OPD-desk synced • Updated
Assoc. Prof. M.D. İsmail Ahmet Bilgin
  • Years Experience
  • Gastroenterologist

MediFyr Plus Acibadem Maslak Hospital, Istanbul

OPD-desk synced • Updated
Dr. Murat Alakuş
  • Years Experience
  • Physical Medicine and Rehabilitation

MediFyr Plus Acibadem Maslak Hospital, Istanbul

OPD-desk synced • Updated
Prof. M.D. Cem Alhan
  • Years Experience
  • Vascular surgeon

MediFyr Plus Acibadem Maslak Hospital, Istanbul

OPD-desk synced • Updated
Prof. M.D. Elif Akpek
  • Years Experience
  • Pain Management

MediFyr Plus Acibadem Maslak Hospital, Istanbul

OPD-desk synced • Updated

MediFyr Plus Acibadem Maslak Hospital, Istanbul

OPD-desk synced • Updated
Prof. M.D. Emre Özker
  • Years Experience
  • General surgeon

MediFyr Plus Acibadem Maslak Hospital, Istanbul

OPD-desk synced • Updated
Dr. Emre Sübay
  • Years Experience
  • Ophthalmologist

MediFyr Plus Acibadem Maslak Hospital, Istanbul

OPD-desk synced • Updated
Assoc. Prof. M.D. Ender Cesur
  • Years Experience
  • Psychiatry Specialist

MediFyr Plus Acibadem Maslak Hospital, Istanbul

OPD-desk synced • Updated
Prof. M.D. Ender Semiz
  • Years Experience
  • Cardiologist

MediFyr Plus Acibadem Maslak Hospital, Istanbul

OPD-desk synced • Updated