Page 41 - Best Doctors in Turkey — Get an Online Consultation

The doctor is a highly experienced urologist with a focus on minimally invasive surgical techniques and advanced prostate cancer treatments. With over 20 years of experience, the doctor has contributed significantly to the field through numerous published research papers and participation in international conferences. The doctor is board-certified and has been recognized for excellence in patient care and innovative treatment approaches.

The doctor is a Chief Dentist with a robust background in oral diagnosis, aesthetic dentistry, prosthesis, and digital dentistry treatments. Practicing since 2006, the doctor has earned numerous certifications, including Digital Smile Design and advanced implant systems. The doctor is an active participant in the International Scientific Congress and contributes to academia as a lecturer at various universities.

The doctor holds a degree from Istanbul University, Faculty of Dentistry, and a Health Management Master's from Nişantaşı University.

Pediatric Hematology and Oncology

Dr. Isik Okuyan is an obstetrics and gynecology specialist at Memorial Göztepe Hospital in Istanbul (2025–present). He previously worked at Şanlıurfa Training and Research Hospital (2023–2025). He completed his OB/GYN residency at SB University Istanbul Training and Research Hospital (2019–2023). He earned his MD from Mersin University (2011–2017).

His credentials include GESEA Level 1 in Gynecological Endoscopy (Marseille, 2024). He presented a video and a poster at the 33rd ESGE Congress (2024). He is a member of the Turkish Medical Association, the Turkish Society of Gynecology and Obstetrics, and ESGE. He took part in meetings from 2022 to 2025, including ISON and national gynecology congresses.

Dr. Mehmet Semih is a cardiology specialist at Memorial Göztepe Hospital (2025–present). He previously served as a specialist at Koşuyolu High Specialty Training and Research Hospital (2024–2025) and Sivas Numune Hospital (2023–2024). He completed his cardiology residency at Istanbul University Cerrahpaşa (2018–2023). He earned his MD at Istanbul University (2006–2012).

He is a member of the Turkish Society of Cardiology, the European Society of Cardiology, and the European Heart Rhythm Association. He has delivered oral case presentations at EHRA and TKD congresses. He also completed the TKD Bifurcation Lesions Management Course and the TKD Echocardiography Symposium.

Dr. Basak Sargin is an obstetrics and gynecology (OB/GYN) specialist at Memorial Göztepe Hospital. She has worked at Medipol Mega University Hospital (IVF and Reproductive Health Center), Medipol Acıbadem Region, Memorial Ataşehir Hospital, and Kars Harakani State Hospital.

Accreditations: FMAS and DMAS, World Laparoscopy Hospital (2023). ART training, American Hospital (07/2024–01/2025). Fellowships: Minimally Invasive and Advanced Gynecologic Surgery, Pius University, Oldenburg (07/2025); World Laparoscopy Hospital (05/2023). Additional training in robotic surgery, hysteroscopy, vNOTES, embryo transfer simulation, and laser/magnetic stimulation.

Education: MD, Hacettepe University. OB/GYN residency, Ankara (2016–2021). PhD candidate in Biomedical Engineering, Koç University (since 2023). Memberships: SRGS, International Society of Gynecology and Obstetrics, ESGE, WALS, and Istanbul Medical Chamber.

2015 - 2015

Medipol Üniversitesi Parkinson Hastalığı ve Hareket Bozuklukları Merkezi

2009 - 2009

Medicalpark Bahçelievler Hastanesi

1999 - 2004

Medicalpark Bahçelievler Hastanesi

1997 - 2009

Amerikan Hastanesi

1997 - 1997

VKV Amerikan Hastanesi

1995 - 1995

Division of Neurosurgery, Toronto Western Hospital Research Fellow

1995 - 1995

Department of Neurosurgery, The Johns Hopkins Hospital

1995 - 1997

Toronto Western Hospital,

1994 - 1994

Division of Neurosurgery, Toronto Western Hospital

1992 - 1992

Department of Neurosurgery, University of Virginia

1992 - 1992

Department of Neurosurgery, University of Washington

1992 - 1992

İsrail Kudüs, The European Association of Neurosurgical Societies European

1991 - 1991

İspanya Zaragoz- The European Association of Neurosurgical Societies European

1990 - 1990

Glasgow, Scotland, İngiltere

1990 - 1990

Glasgow ve Edinburg, The British Council

1990 - 1990

Glasgow ve Edinburg, The British Council1994

Marmara University Institute of Health Sciences, Neurophysiology

1993

Marmara University Faculty of Medicine, Neurosurgery and Neurosurgery

1989

Marmara University Faculty of Medicine, Neurosurgery and Neurosurgery

1983

Hacettepe University, Faculty of Medicine

1983

Hacettepe University, Faculty of Medicine

2010 - 2012

M. Akif Ersoy Thoracic and Cardiovascular Surgery Training and Research Hospital

2002 - 2010

Siyami Ersek Thoracic and Cardiovascular Surgery Training and Research Hospital

1993 - 1998

İ.Ü. Istanbul Faculty of Medicine

Dr. Tolga Sinan Guvenc is a cardiologist at Memorial Göztepe Hospital (2025–). He previously worked at VM Medical Park Pendik (2019–2025) and at Dr. Siyami Ersek Thoracic and Cardiovascular Surgery Training and Research Hospital (2014–2018).

He has authored over 200 scientific articles and book chapters. He serves on the Editorial Board of Scientific Reports.

He is a Fellow of the ESC Heart Failure Association. He is also a member of the Turkish Society of Cardiology, the European Society of Cardiology, and Sigma Xi.

Advanced training includes a clinical fellowship in the Advanced Heart Failure Unit at the University of Alberta. He also served as a visiting scientist at the Echocardiography Station at the University of Alabama at Birmingham. Education: MD, Istanbul University Cerrahpaşa (English). Cardiology residency, Dr. Siyami Ersek.

Dr. Muslim Sahin is a cardiology specialist at Memorial Göztepe Hospital (2025–present). He previously worked at VM Medical Park Pendik Hospital (2018–2025), Kartal Koşuyolu High Specialty Training and Research Hospital (2010–2018), Kartal Yavuz Selim State Hospital (2007–2010), and Kayseri Military Hospital (2006–2007).

He completed his cardiology residency at Maltepe University Faculty of Medicine (2001–2005). He earned his MD from Istanbul University Cerrahpaşa Faculty of Medicine (1995–2001).

He is a member of the Turkish Medical Chamber, the Turkish Society of Cardiology, the EuroCTO Club, and the European Society of Cardiology. He has completed training in TAVI, MitraClip, and renal denervation.

Dr. Aygul Aliyeva Onen is a specialist in obstetrics and gynecology at Memorial Göztepe Hospital (2025–present). She previously worked at Medical Park Göztepe (2023–2025) and at Celal Bayar University Hafsa Sultan Hospital (2018–2023). She completed her obstetrics and gynecology residency at Celal Bayar University Faculty of Medicine (2018–2023). She graduated from Azerbaijan Medical University (2010–2016) and completed an observership at Ege University (2017).

Professional memberships include the Istanbul Medical Chamber, the Turkish Society of Gynecology and Obstetrics, and the Pelvic Floor and Cosmetic Gynecology Association. Additional training includes Current Approaches in Cosmetic Gynecology (TJOD Izmir); CCI HADYEK Laparoscopic Gynecologic Surgery; Sexual Health Federation—Vaginismus and Dyspareunia; the 1st–3rd International Pelvic Floor and Cosmetic Gynecology Congresses; and the TJOD Obstetric Simulation Course.

Dr. Haluk Caglar Karakaya is a specialist in cardiovascular surgery at Memorial Göztepe Hospital in Istanbul (2025–). He previously worked as a specialist at the University of Health Sciences Sancaktepe Şehit Prof. Dr. İlhan Varank Training and Research Hospital (2022–2025). He completed residency training at the University of Health Sciences Dr. Siyami Ersek Thoracic and Cardiovascular Surgery Training and Research Hospital and at Ankara University. He earned his MD from Hacettepe University (English program).

Professional memberships: European Society for Cardiothoracic Surgery (EACTS), European Society for Vascular Surgery (ESVS), Turkish Society of Cardiovascular Surgery, National Society of Vascular and Endovascular Surgery.

Continuing education: 27th European Vascular Course (2024); Cardiac Memorial Robotic/Minimally Invasive Cardiac Surgery Summit (2024); 18th Turkish Cardiovascular Surgery Congress (2024); 24th ASVS Congress (2023); TKDCD Endovascular Course (2023); “Grey Areas in Vascular Surgery” Symposium (2023); Basic and Advanced Doppler Ultrasonography Course (2023).

Dr. Ahmet Ekmekci is a cardiology specialist at Memorial Göztepe Hospital in Istanbul, since 2025. He earned the title of Associate Professor of Cardiology (Doçent) in 2014.

He served as Chief Assistant in Cardiology at Dr. Siyami Ersek Training and Research Hospital in 2010. He completed his cardiology residency at the same hospital in 2009. He finished his internal medicine residency at the Istanbul Faculty of Medicine from 2002 to 2007. He received his MD from Istanbul University, Istanbul Faculty of Medicine, in 2002.

He is a member of the Turkish Society of Cardiology, the European Society of Cardiology, and the European Heart Failure Association (Gold Member). He is also a member of the Istanbul Internal Medicine Association, the Stem Cell and Cellular Therapies Association, the Istanbul Medical Chamber, and the Turkish Medical Association. He served on the Board of the Turkish Society of Cardiology Heart Failure Working Group in 2016.

Dr. Berrak Beyoglu Oruc is a specialist in obstetrics, gynecology, and IVF at Memorial Göztepe Hospital (2025–). She previously worked at Bahçeşehir University Medical Park Göztepe Hospital and Ağrı Training and Research Hospital. She also served as a research physician in gynecologic oncology at Bologna University S. Orsola (2022).

Accreditations and key training include: Certified ART Clinical Training, American Hospital (2025); GESEA MIGS Level 1 – European Certified Minimal Invasive Gynaecological Surgeon (2024). She also completed the Harvard Women’s Health and Menopause Course (2025), ESGO ORSI Robotic Surgery (2022), ESGO Masterclass (2022), and TMFTP Second Trimester Ultrasound (2024).

Awards: First prize, oral presentation—Transperineal Ultrasonography in Predicting Operative Delivery (13th Maternal–Fetal Medicine and Perinatology Congress, 2023). Third prize—Aortic Dissections (2016). Memberships: ISUOG, ESGE, MIJID, TJOD.

Physician's Curriculum Vitae

Education and Specialization

1983-1989 - Firat University Faculty of Medicine

1993-1997 - DR. ZEKAI TAHIR BURAK WOMEN'S DISEASES AND BIRTH HOSPITAL, Women's Diseases and Obstetrics Specialization Training

Experience

Medicalpark Bahçelievler Hospital, Women's Diseases and Obstetrics Specialist

Kayseri Private Ibn Sina Hospital, Women's Diseases and Obstetrics Specialist

Dr. Zekai Tahir Burak Women's Diseases and Obstetrics Training and Research Hospital, Women's Diseases and Obstetrics Specialist

Courses and Certifications

(2011) 20th Annual Congress of the European Society for Gynaecological Endoscopy (ESGE) 2011, London

(2009) PGS: Is it the correct answer to the right question? Fertility treatment: from the past to the future. October 2–3, 2009, Prague, Czech Republic

(2009) 8th TURKISH-GERMAN Gynecology Congress, April 29–May 3, 2009, Antalya; Ovulation Induction Course

(2005) American Hospital Laparoscopy and Hysteroscopy Course

(2002) 2nd National In Vitro Fertilization Ovulation Induction Course

(1997) Dr. ZTB Laparoscopy and Hysteroscopy Courses

(1995) ITEM Laparoscopy Basic Training Course

Professional Memberships

Turkish Society of Gynecology

National Perinatology Association

Turkish Society of Reproductive Endocrinology and Infertility (TSRM)

Dr Önul is FROM THE BEST DOCTORS in the field of Endoscopic skull base surgery and pituitary surgery Brain tumor surgery (Neuro Oncological surgery)


I was born in Artvin in 1977. He became a doctor from KTU Faculty of Medicine in 2001, and Bakırköy Prof. Dr. I became a Neurosurgery Specialist by getting the title of specialist from Mazhar Osman Mental Health and Neurological Diseases Training and Research Hospital. Again, in the same hospital, I was entitled to the title of associate professor in 2016. I continue to work at Başakşehir Çam and Sakura City Hospital, where I voluntarily joined with the task of establishing the Neurosurgery Clinic with my teammates. I am married and have 2 children. I love painting. I am very interested in children's literature. I have 10 printed children's tales

2017 - Present, Istanbul/Istanbul/Türkiye

MEMORIAL SISLI AND MEMORIAL ATASEHIR HOSPITAL

Pediatric Cardiology Specialist

2014 - 2017, Istanbul/Istanbul/Türkiye

ISTANBUL NEW CENTURY UNIVERSITY PRIVATE GOP HOSPITAL CHILD HEALTH AND DISEASES DEPARTMENT

Head of Department <br>Child Heart Diseases Clinic Manager

2008 - 2014, Istanbul/Istanbul/Türkiye

KOSUYOLU HEART HOSPITAL CHILDREN'S CARDIOLOGY CLINIC

Clinic Chief of Pediatric Cardiology Clinic

2004 - 2007, Istanbul/Istanbul/Türkiye

ISTANBUL FACULTY OF MEDICINE, DEPARTMENT OF PEDIATRIC CARDIOLOGY

Faculty Member

2000 - 2004, Edirne/Edirne/Türkiye

TRAKYA UNIVERSITY FACULTY OF MEDICINE DEPARTMENT OF CHILD HEALTH AND DISEASES

Faculty Member

1997 - 2000, Istanbul/Istanbul/Türkiye

KADIKOY HEALING HOSPITAL

Child Health and Diseases Specialist

Education and Expertise

Istanbul University Istanbul Faculty of Medicine - 2010

İstanbul Metin Sabancı Baltalimanı Bone Diseases Training and Research Hospital – Orthopedics and Traumatology – 2016

Work experiences

Private Family Hospital

Private Atakoy Hospital

Sancaktepe Health Center

Baltalimanı Bone Diseases Training and Research Hospital

Diyarbakir Selahaddin Eyyubi State Hospital

Subjects He Is Competent And Interested In:

Knee Calcification

Knee pain

Meniscus Tear

Knee Ligament Injuries

Carpal Tunnel Syndrome

Neck pain

Orthopedic Diseases

Shoulder Instability

Shoulder Dislocation

Shoulder pain

Meniscus

Recurrent Shoulder Dislocations

Hip and Knee Prosthesis