

Gokhan Demirayak


Doctor's visit
Price on request
Compare the best doctors and prices in Turkey. Find your best match here.
Specify your medical need to find the right doctor
Explore top doctors across 2110+ clinics. Bookimed helps you find the best fit for your needs and budget.
Meet the experts behind this page
Medically reviewed by Fahad Mawlood
Medical Editor & Data ScientistTop doctors
2110
Turkey
Reviews
14,000+
From real patients
Get free personalized treatment plans and choose the best option. No commitment · No payments for our services
Show first:




Doctor's visit
Price on request




The doctor is an experienced neurologist with over 7 years of experience, having worked in both Turkey and Belgium. Specializing in memory disorders, functional neuroimaging, epilepsy, electroencephalography, headaches, and sleep disorders, the doctor has contributed numerous research papers to national and international scientific journals.
5 reviews
Doctor's visit
Price on request





The doctor graduated from Çukurova University School of Medicine and completed a fellowship in Pediatric Surgery at Erciyes University. With a focus on pediatric surgery, the doctor specializes in conditions such as inguinal and umbilical hernias, appendicitis, constipation, anal fissures, hemorrhoids, ingrown toenails, and ankyloglossia. The doctor has published three articles in international peer-reviewed journals and presented 13 articles at international scientific meetings. The doctor has worked at several institutions, including Erciyes University and Kahramanmaras Children's Hospital.
Doctor's visit
Price on request




Dr. Ali Cem Oktay is a plastic surgeon with over 10 years of experience. He specializes in breast lift, breast reduction, Brazilian Butt Lift (BBL), rhinoplasty, and gynecomastia surgery. He completed his medical and specialty training at Mersin University. Dr. Oktay is accredited by the Turkish Medical Association and the Turkish Plastic, Reconstructive and Aesthetic Surgery Association.
He is known for high patient satisfaction and consistent, positive results. Dr. Oktay has published scientific articles and regularly attends professional conferences. His commitment to research and clinical care has earned him respect in the field of plastic surgery.
Doctor's visit
Price on request

The doctor has extensive experience in hair transplantation, having worked in prestigious hospitals such as Medistate, Cagiıner, and Acibadem in Turkey. With 16 years in the field, the doctor established a successful hair clinic, providing services for over a decade.
The clinic is renowned for its unique use of oxygenated therapy, which the doctor pioneered, offering patients less pain, faster recovery, and minimal scarring. The doctor oversees a team that performs at least 500 hair transplantations monthly, ensuring high standards and natural-looking results.
Doctor's visit
Price on request




2018 - Present, Istanbul/Istanbul/Türkiye
MEMORIAL SISLI HOSPITAL
Cardiology Specialist
2013 - 2018, Istanbul/Istanbul/Türkiye
SISLI AND ISTANBUL FLORENCE NIGHTINGALE HOSPITAL
Cardiology Specialist
2004 - 2013, Samsun/Samsun/Türkiye
ONDOKUZ MAYIS UNIVERSITY FACULTY OF MEDICINE
Cardiology Specialist
2004 - 2004, Samsun/Samsun/Türkiye
SAMSUN STATE HOSPITAL
Cardiology Specialist
1998 - 2004, Samsun/Samsun/Türkiye
ONDOKUZ MAYIS UNIVERSITY FACULTY OF MEDICINE
Cardiology Specialist
Doctor's visit
Price on request




Harun Kaya is a hair transplant specialist. He completed the Anesthesia Technician Program at Istanbul Okan University (2018–2020).
Experience: Hair Transplant Assistant at Este Future Clinic (2020–2021). Hair Transplant Technician at Rizza Hair Clinic in Kosovo (2021–2022). Hair Transplant Specialist at Lokman Hekim Medical Center in Ankara (2022–2023). Hair Transplant Specialist at Emsey Hospital (2023–2024). Hair Transplant Specialist at Lokman Hekim Istanbul Hospital (2024–2026). He speaks Turkish.
Doctor's visit
Price on request




The doctor is a highly regarded Eye Diseases Specialist with a focus on ophthalmology. With a robust academic foundation, the doctor has completed fellowships at prestigious institutions including Moorfields Eye Hospital, University of California San Diego, Baylor College of Medicine, and the Doheny Eye Institute.
The doctor is an active member of several professional societies such as the Turkish Society of Ophthalmology, American Society of Retina Specialists, American Academy of Ophthalmology, and the European VitreoRetinal Society. The doctor specializes in a wide range of eye surgeries, including cataract surgery, LASIK, and retinal transplantation.
1 review
Doctor's visit
Price on request




2021 - Present, Istanbul/Türkiye
MEMORIAL SISLI HOSPITAL
Associate Professor of Ear, Nose, Throat and Head and Neck Surgery Diseases Specialist
2020 - 2021, Istanbul/Türkiye
İSTİNYE UNIVERSITY LIV HOSPITAL
Associate Professor of Ear, Nose, Throat and Head and Neck Surgery Diseases Specialist
2019 - 2020, Istanbul/Türkiye
GAYRETTEPE FLORENCE NIGHTINGALE HOSPITAL
Associate Professor of Ear, Nose, Throat and Head and Neck Surgery Diseases Specialist
2018 - 2019, Tokat/Türkiye
ISTANBUL TRAINING AND RESEARCH HOSPITAL
Associate Professor of Ear, Nose, Throat and Head and Neck Surgery Diseases Specialist
2013 - 2018, Istanbul/Türkiye
ISTANBUL EDUCATION AND RESEARCH HOSPITAL
Ear Nose Throat and Head and Neck Surgery Diseases Specialist Specialist Doctor
2011 - 2013, Tokat/Türkiye
TOKAT STATE HOSPITAL
Ear Nose Throat and Head and Neck Surgery Diseases Specialist Specialist Doctor
2005 - 2011, Istanbul/Türkiye
ISTANBUL EDUCATION AND RESEARCH HOSPITAL
Assistant Physician
Doctor's visit
Price on request




2019 - Present, Istanbul/Istanbul/Türkiye
MEMORIAL SISLI HOSPITAL
Neurosurgery Specialist
2015 - 2019, Istanbul/Istanbul/Türkiye
ACIBADEM UNIVERSITY ATAKENT HOSPITAL
Neurosurgery Specialist, Lecturer
2010 - 2015, Bolu/Bolu/Türkiye
ABANT İZZET BAYSAL UNIVERSITY FACULTY OF MEDICINE
Head of Neurosurgery Department
1992 - 2010, Istanbul/Istanbul/Türkiye
BEZMIALEM FOUNDATION GUREBA TRAINING AND RESEARCH HOSPITAL
Neurosurgery Clinic Chief
1987 - 1992, Istanbul/Istanbul/Türkiye
HAYDARPAŞA NUMBER TRAINING AND RESEARCH HOSPITAL
Assistant Chief of Neurosurgery
1987 - 1989, /Switzerland
ZURICH UNIVERSITY HOSPITAL (KANTONSSPITAL)
Neurosurgery Specialist
1984 - 1987, Istanbul/Istanbul/Türkiye
HAYDARPAŞA NUMBER TRAINING AND RESEARCH HOSPITAL
Chief Assistant
1983 - 1984, Ankara/Ankara/Türkiye
GÜLHANE MILITARY MEDICAL FACULTY
Neurosurgery Specialist
Doctor's visit
Price on request





The doctor is a specialist in Eye Diseases with extensive expertise in general eye examinations, retinal treatments, and various eye surgeries, including Cataract surgery with IOL replacement, Cataract surgery (one eye), Cataract Surgery with Multifocal Lens Implant, LASIK eye surgery, IOLs implantation, Transplantation of retina, ReLEx SMILE eye surgery, LASEK eye surgery, and Laser eye surgery.
Recognized for his groundbreaking work, the doctor performed the first bionic eye surgery in Turkey and received the TOD - Best Surgical Video Award in 2016. He is a member of the Turkish Ophthalmology Association, the American Academy of Ophthalmology, and the European Vitreoretinal Society.
Doctor's visit
Price on request




Dr. Mert Tanal is a General Surgery Specialist at Memorial Şişli Hospital (2024–present). He previously worked at Acıbadem Maslak Hospital (2023–2024) and Tekirdağ Dr. İsmail Fehmi Cumalıoğlu City Hospital (2021–2023). He completed his general surgery residency at the University of Health Sciences Şişli Hamidiye Etfal (2016–2021). He earned his M.D. from Istanbul University Cerrahpaşa (2009–2015).
He holds the European Board of Surgery Qualification in General Surgery (2022). He took the Turkish Surgical Society Proficiency Exam (2021). He has published 28 articles in international indexed journals and 10 in national peer-reviewed journals. He has 46 conference presentations and posters.
He is a member of the Turkish Medical Association, Turkish Surgical Society, Turkish Society of Colon and Rectal Surgery, National Trauma and Emergency Surgery Association, ESSO, EAES, and the American College of Surgeons. His training includes IRCAD Robotic Surgery in Strasbourg (2022) and SENATURK Breast Surgery (2020–2021).
Doctor's visit
Price on request




Dr. Cagatay Saim Tezel is a Professor of Thoracic Surgery at Memorial Şişli Hospital since 2025. From 2021 to 2025, he was a Professor at Haliç University Faculty of Medicine and at Liv Hospital Ulus. Earlier, he served at SB Süreyyapaşa Chest Diseases and Thoracic Surgery Training and Research Hospital as a specialist, associate professor, and educational supervisor.
He earned his MD from Ankara University. He completed his Thoracic Surgery specialization at SB Heybeliada Chest Diseases and Thoracic Surgery Hospital from 2000 to 2005. His international training includes a 6‑month observership at the Royal Brompton Hospital and work in the Leicester University clinics. He also attended the STS 41st Annual Meeting and the Ankara University Esophageal Surgery Program. He was part of the Süreyyapaşa Thoracic Surgery Transplant Team. He was an internship lecturer at Yeditepe University from 2013 to 2020. He served on the editorial board of the Heybeliada Medical Bulletin in 2001.
He is a member of the Turkish Thoracic Surgery Society, the European Society of Thoracic Surgeons, the Turkish Thoracic Society, and the European Respiratory Society. He advised a thesis that won third place in the Istanbul Medical Chamber Thesis Competition.
Doctor's visit
Price on request




2024 - Currently, Istanbul/Turkey
MEMORIAL BAHÇELİEVLER HOSPITAL
Üroloji Specialist
2020 - 2024, Istanbul/Turkey
BAŞAKŞEHİR ÇAM VE SAKURA CITY HOSPİTAL
Attending Robotic and Reconstructive Surgeon
2016 - 2020, Istanbul/Turkey
BAKIRKÖY SADİ KONUK RESEARH AND EDUCATİON HOSPİTAL, DEPARTMENT OF UROLOGY
General Practitioner
2015 - 2016, Sheffield/Turkey
SHEFFİELD UNİVERSİTY HALLAMSHİRE HOSPİTAL DEPARTMENT OF UROLOGY
Rekonstructive Urology
2012 - 2015, Istanbul/Turkey
HASEKİ RESEARCH AND EDUCATİON HOSPİTAL, DEPARTMENT OF UROLOGY
Urology Specialist
2011 - 2012, Istanbul/Turkey
LÜTFİYE NURİ BURAT STATE HOSPİTAL
Urology Specialist
2021 - Currently
PROFESSOR
2015 - 2021
ASSOCIATE PROFESSOR
1999 - 2005, Istanbul / Turkey
M.D Istanbul University Medical School
Medical Doctor Education
SPECIALTIES
Diseases
Treatment Methods
Doctor's visit
Price on request





Assoc. Prof. Dr. Tamer Aksoy graduated from Eskişehir Osmangazi University in 2000. After working as a Management Representative at SSK Tavşanlı Hospital, he worked as a General Practitioner at SSK Ankara Etlik Specialization Hospital Endocrinology Department and started his residency training at Hacettepe University Nuclear Medicine Department in 2005 and completed his specialization in 2009 and became a Nuclear Medicine specialist.
After working as an Assistant Professor at Afyon Kocatepe University Faculty of Medicine, Department of Nuclear Medicine, he started to work at Haydarpaşa Numune Training and Research Hospital in 2011. In 2012, Aksoy worked as an Assistant Professor at Acıbadem Hospitals group and Acıbadem Mehmet Ali Aydınlar University Faculty of Medicine. Dr. Aksoy, who worked as a Lecturer at Acıbadem Hospitals group and Acıbadem Mehmet Ali Aydınlar University Faculty of Medicine in 2012, started to work at Health Sciences University Istanbul Training and Research Hospital Nuclear Medicine Clinic in 2018 and ended his duty in 2023.
In 2012, he worked as a clinical researcher at the Netherlands Cancer Institute - Antoni van Leeuwenhoek (NKI) Hospital (Amsterdam / Netherlands) Nuclear Medicine Clinic (Netherlands) as an observer on PET imaging, Lymphoscintigraphy and Radionuclide Therapies. In February 2023, he received the title of Associate Professor. He has been serving his patients at Hisar Hospital Intercontinental since May 2023.
During his professional life, he has been accepting and following up patients especially on PET/CT examinations and Radionuclide Therapies.
He is a member of Turkish Medical Association, Turkish Nuclear Medicine Association and European Nuclear Medicine Association.
MEDICAL AREAS OF INTEREST
Pet-BT
Radionuclide Therapy
Doctor's visit
Price on request




2020 - Present, Istanbul/Istanbul/Türkiye
MEMORIAL ATASEHIR HOSPITAL
Thoracic Surgery Specialist
2018 - 2020, Tekirdağ/Tekirdağ/Türkiye
CORLU STATE HOSPITAL
Thoracic Surgery Specialist
2012 - 2018, Istanbul/Istanbul/Türkiye
MARMARA UNIVERSITY FACULTY OF MEDICINE
Research Assistant
2011 - 2012, Bilecik/Bilecik/Türkiye
BILECIK GOLPAZARI STATE HOSPITAL
Chief Physician
2010 - 2012, Bilecik/Bilecik/Türkiye
BILECIK GOLPAZARI STATE HOSPITAL
General Practitioner
Doctor's visit
Price on request




The doctor is a distinguished Oral, Dental, and Maxillofacial Surgeon known for significant contributions to the field through scientific publications and global symposium participation. The clinical focus includes Orthognathic Surgery, Custom Implants, Dental Implant Surgery, Oral Surgery, and Maxillofacial Traumas.
The doctor has participated in the Orthognathic Surgery Symposium at the Royal College of London and attended a course on Custom Made Implants in Brussels. Memberships include the International Association of Oral and Maxillofacial Surgery and the Turkish Association of Oral and Maxillofacial Surgery.
Graduated with a Bachelor's Degree from Istanbul University Faculty of Dentistry and a PhD in Oral and Maxillofacial Surgery from the same institution.
Doctor's visit
Price on request





Op. Dr. Merve Karlı has completed her medical education at Eskişehir Osmangazi University Faculty of Medicine, Bakırköy. She received her specialist training at Sadi Konuk Training and Research Hospital.
She has performed over 1000 operations in the fields of benign anorectal diseases, laparoscopic / open hernia surgery, breast diseases, trauma and emergency surgery. She has certifications on endoscopic procedures.
MEDICAL INTERESTS
Doctor's visit
Price on request




2018 - Present, Istanbul/Istanbul/Türkiye
MEMORIAL BAHCELIEVLER HOSPITAL
Pediatric Surgery Specialist
2010 - Present, Istanbul/Istanbul/Türkiye
MEMORIAL SISLI HOSPITAL
Pediatric Surgery Specialist
1997 - 2010, Istanbul/Istanbul/Türkiye
ISTANBUL UNIVERSITY CERRAHPAŞA MEDICAL FACULTY
Pediatric Surgery Specialist, Lecturer
1996 - 1997, /Abroad
RED CROSS WAR MEMORIAL CHILDREN'S HOSPITAL
Pediatric Surgery Specialist
1990 - 1996, Istanbul/Istanbul/Türkiye
ISTANBUL UNIVERSITY CERRAHPAŞA MEDICAL FACULTY
Pediatric Surgery Specialist, Lecturer
Doctor's visit
Price on request




Medical interests:
• 1. Ocular Oncology
• 2. Surgical Retina
• 3. Uveitis
• 4. Medical Retina
• 5. Cataract
Education:
• 1. Istanbul University, Istanbul Faculty of Medicine 2004-2010
• 2. Istanbul University, Istanbul Faculty of Medicine, Department of Ophthalmology 2011-2016
Experience:
• Liv Hospital Ulus
• 1st Hakkari State Hospital
• 2. Van Yüzüncü Yıl University, Faculty of Medicine
• 3. Yeni Yüzyıl University, Gaziosmanpaşa Hospital
Research & Publications:
Dr. Derda Ozer has worked on 5 major research projects in ophthalmology, including studies on uveitis, macular degeneration, and retinal conditions. He has helped test new treatments for inflammatory and vascular eye diseases in clinical trials.
Dr. Ozer has also published over 35 research papers in esteemed journals such as Cornea and International Ophthalmology. His work focuses on advanced imaging techniques, long-term outcome studies, and evaluations of innovative treatments.
Memberships:
• 1st Turkish Ophthalmology Association
• 2nd Turkish Medical Association
Awards:
• 1. ICO-STAAR Surgical Three-Month Fellowship in Vitreo-Retina
Doctor's visit
Price on request
You've viewed 20 of 2110 doctors
Choosing a clinic abroad can be stressful. At Bookimed, with over 800K patients helped, we understand your concerns. We know how to find trusted doctors, the best price-quality options, and solutions for even complex cases. We’re here to guide you every step of the way.
Yan Matsiivskiy
Head of Medical Coordinator Team
4300++ patient journeys guided
3 years at Bookimed
278 patients from Turkey have found their doctor through us this month
2 min Quiz
Tell us your goal, budget, timeline
Human Matching + AI
Our algorithm finds matches, coordinator verifies fit
Your Options Ready
Compare prices, packages, dates. Chat with your coordinator
Overwhelmed by choices?
Guiding your treatment
Medically trained personal coordinators






| Rank | Doctor | experience | Good Fit For | What Sets Them Apart | Clinic & Location | Consultation |
|---|