Halaman 6 - Diagnosis ahli diagnostik Terbaik di Istambul - TOP-112 dokter

Dr. Koray Karabulut is a general surgery specialist at Memorial Göztepe Hospital (2025–). His focus is HPB surgery, liver transplantation, and robotic or minimally invasive surgery. He was the responsible specialist at the Fırat University Liver Transplant Center (2014–2018). He then worked as an organ transplantation specialist at Memorial Şişli (2018–2019). In 2024, he worked in robotic HPB surgery at Ageo Medical Center.

Training highlights include minimally invasive HPB at IRCAD (2015). He completed a research fellowship at the Cleveland Clinic on liver tumors and laparoscopic‑robotic surgery (2010–2011). He also completed liver transplant training at the İnönü University Institute (2011–2012). He earned his MD and finished his general surgery residency at Istanbul University. He became an associate professor in 2013. His academic work includes peer‑reviewed papers in J Gastrointest Surg, Surgery, and Surg Endosc. He has written surgical book chapters. He is a guideline author for the Turkish Surgical Society and served on editorial boards (2011–2016).

Dr. Mehmet Altug Tuncer is a Cardiovascular Surgery Specialist at Memorial Göztepe Hospital (2025–present). He has been Head of Cardiovascular Surgery at Istanbul University Faculty of Medicine since 2018. He has served as an Instructor at Kartal Koşuyolu since 2013. He directed the Aortic Surgery Center there from 2016 to 2018.

He became Professor in 2018 at Istanbul Okan University. He was appointed Associate Professor in 2013. He earned his MD at Istanbul University Cerrahpaşa. He completed cardiovascular surgery training at Koşuyolu. His work includes 38 SCI/SCI-E papers, 19 national articles, and one book.

He is Chairman of the Aortic Surgery Working Group of the Turkish Society of Cardiovascular Surgery. He is a member of the Turkish Medical Association. He also belongs to the Society of Minimally Invasive and Robotic Cardiovascular Surgery. He is a member of the Turkish Society of Clinical Microbiology and Infectious Diseases.

Dr. Nezih Onur Ermerak is a Thoracic Surgery Specialist at Memorial Göztepe Hospital (2025–). He previously worked in the Department of Thoracic Surgery at Marmara University (2009–2025). He also served at Kilis State Hospital during compulsory service and war surgery (2015–2017).

He completed a Thoracic Surgery fellowship at Washington University in St. Louis (2019–2020). He then completed a Thoracic & Esophageal Surgery fellowship at Dalhousie University (2020–2022). He held a visiting fellowship at Universitätsspital Bern (2011–2012). He finished his residency at Marmara University (2009–2015).

He is President of the Turkish Society of Chest Wall Deformities and Pectus. He served on the Organizing Committee of CWIG 2023 in Istanbul. He completed MI-STARs (2020), MITS (2019), CITI (2024), and KOÇ Laboratory Animal Use certification (2025). He attended the AATS 103rd meeting (2023) and European Thoracic Surgery conferences (2024 and 2025).

Dr. Nurullah Bulut is an ophthalmology specialist at Memorial Göztepe (2025–) and Memorial Bahçelievler (2023–). He previously worked at the University of Health Sciences Kartal Dr. Lütfi Kırdar as a specialist (2013–2022) and as an associate professor (2022–2023). He received the title of associate professor (Doçent) in 2022.

He has 26 peer-reviewed articles, 29 conference papers, one book chapter, and a patent application for an intraocular lens design. He is a member of EURETINA YOURS, the Turkish Medical Association, and the Turkish Ophthalmological Society.

Training: ESCRS PRK/LASEK/Epi-LASIK/LASIK course (2011); ocular electrophysiology, Germany (2011); vitreoretinal surgery observer program, University of Chicago (2014). Education: MD, Atatürk University (2008). Ophthalmology specialization, Kartal Dr. Lütfi Kırdar (2009–2013).

Dr. Salih Taskin is a specialist in obstetrics and gynecology. He also focuses on gynecologic oncology and minimally invasive surgery. He works at Memorial Göztepe Hospital in Istanbul (2025–present). He previously served in Gynecologic Oncology (2014–2025) and in Obstetrics and Gynecology (2002–2025) at the Ankara University Faculty of Medicine.

Accreditations include ESGO Certified Specialist in Gynecologic Oncology (2018) and a fellowship in robotic surgery and gynecologic oncology at McGill University (2014). He completed an OB‑GYN residency at Ankara University and earned his MD at Çukurova University (both 1995–2001).

He is a member of the Turkish Society of Gynecologic Oncology; the Society of Robotic Gynecologic Surgery; the Society of Minimally Invasive Gynecologic Oncology; the Federation of Women’s Health Associations; IGCS; ESGO; ESGE; and SERGS. He is trained in robotic, laparoscopic, and gynecologic cancer surgery.

Dr. Esra Esim Buyukbayrak is an obstetrics and gynecology specialist and a perinatology (maternal–fetal medicine) subspecialist. She has practiced at Memorial Göztepe Hospital since 2025. She served as Head of Department and Clinical Administrative and Training Director at the Marmara University Faculty of Medicine from 2022 to 2025. From 2015 to 2025, she worked at Marmara University Pendik Training and Research Hospital as a perinatology subspecialist. She also served there as associate professor and later professor.

She holds an MD from Marmara University. She completed residency in obstetrics and gynecology and subspecialty training in perinatology. She received WHO–IAMANEH reproductive health training in Geneva in 2004. She completed advanced obstetrics and gynecology training in 2013. She trained in fetal surgery at Centro Gestar, Brazil, in 2023.

She has 86 SCI/SSCI-indexed articles and 84 nationally indexed articles. She has delivered 51 international and 40 national congress presentations. She has written 9 book chapters and supervised 15 doctoral dissertations. She serves as a reviewer and editorial board member for several journals.

Dr. Ulvi Gulmammadov is a Check-Up Physician at Memorial Göztepe Hospital (2025–present). He graduated from the Istanbul University Faculty of Medicine (2001–2008). He is a member of the Turkish Medical Association.

He works in preventive and hospital medicine. He spent 6 years in check-up and occupational practice at Acıbadem Atakent Hospital (2014–2020). He served as Medical Director at Focusmed Health Tourism for 5 years (2020–2025). He worked as a Ward Physician at Taksim German Hospital for 2 years (2012–2014). He also worked 4 years in Emergency Medicine at Emsey Medical Center and Bezmialem Vakıf Gureba Hospital (2008–2012). He has professional training in Occupational Medicine.

Professor of Thoracic Surgery (2013–present). Thoracic Surgery Specialist at Memorial Göztepe (2025–present) and Memorial Ataşehir (2024–present), Istanbul. Former Chair, Department of Thoracic Surgery, Marmara University School of Medicine (2018–2024).

MD, Marmara University (1993). Completed thoracic surgery residency in 2000. International training at Marie Lannelongue Hospital, Paris (2000–2008). Further training at Toronto General Hospital, Thoracic Surgery & Lung Transplantation Clinic (2013), and UC San Diego, Pulmonary Endarterectomy & Lung Transplant Clinic (2013).

Publications in the European Journal of Cardio-Thoracic Surgery, Annals of Thoracic Surgery, and Thoracic and Cardiovascular Surgeon. Topics include pulmonary endarterectomy (PEA) for chronic thromboembolic pulmonary hypertension (CTEPH) (2013) and massive hemorrhage after PEA (2012). They also cover PEA in Behçet’s disease (2018), sleeve lobectomy (2007), and surgery for T4 non–small cell lung cancer over 25 years (2008).

Dr. Hakan Harputluoglu is a medical oncologist at Memorial Bahçelievler Hospital in Istanbul (2023–present). He previously worked in the Division of Medical Oncology, Department of Internal Medicine, at İnönü University Faculty of Medicine in Malatya (2017–2023). He also served at Hacettepe University’s Oncology Institute and Division of Oncology in Ankara (2004–2009).

He has been a Professor at İnönü University Faculty of Medicine since 2017. His training includes an Internal Medicine residency at İnönü University (2004–2009) and a medical degree from Hacettepe University Faculty of Medicine.

Psychiatrist at Memorial Bahçelievler Hospital since 2018. Previously worked at Medical Park Bahçelievler, Trakya University Psychiatry, and Bakırköy Mental Health. MD, Istanbul University Cerrahpaşa. Psychiatry residency at Bakırköy.

Author of 80 publications (53 national, 27 international). Has 330 international citations and 90 presentations. Wrote “Neurotransmitters and Depression” (1988). Contributed 25 book chapters and translated 3 psychiatry books.

Founding member of the Turkish Psychiatric Association and member of APA and ISPG. Awards include the TPA Research Encouragement (2006) and the Mood Disorders Third Prize (2004). Certified CBT psychotherapist (national and European, 2012) and supportive psychotherapist/instructor (2013). Supervised 21 theses. Was an invited speaker at more than 20 congresses and chaired 4. Served on 10 organizing committees. Reviewed 70 papers. Served on the editorial boards of 15 journals. Principal investigator or consultant on 5 projects.

Assoc. Prof. Dr. Saydam Mehmet is a general surgeon at Lokman Hekim Istanbul Hospital (2025–present). His work covers oncologic, endocrine, and metabolic surgery. He performs laparoscopic surgery, including hernia repair and anti-reflux procedures. He also treats morbid obesity and type 2 diabetes. Sleeve gastrectomy is among his key procedures.

Education: He graduated from the Gülhane Military Medical Academy, Faculty of Medicine (1995–2001). He completed his general surgery residency there (2004–2009). He was a research fellow at the University of Miami/Jackson Memorial Hospital, Ryder Trauma Center (2015–2016).

Experience: He worked as a general surgery specialist at GATA Haydarpaşa, Girne Military, and Mevki Military. He later served as Associate Professor of General Surgery at Dışkapı, Sancaktepe, and Medical Park Gebze. Earlier, he practiced as a general practitioner in military medical services.

Dr. Fulya Gokdagli Sigir is an OB/GYN focused on reproductive medicine. She earned her MD from Istanbul University Cerrahpaşa in 2006. She completed her OB/GYN residency at Istanbul Medeniyet University from 2007 to 2013. During her training, she also completed an observership in perinatology at Frankfurt Bürger Hospital.

From 2013 to 2014, she fulfilled compulsory service at Batman Sason State Hospital. She then served as an Assistant Professor at Medipol Mega University Hospital from 2014 to 2017. Her work focused on obstetrics and gynecologic oncology.

She obtained certification in Assisted Reproductive Treatment Practices in 2017 at Memorial Şişli IVF Center. She then worked for about three years as an IVF specialist. At Kolan International Hospital – Şişli IVF Center, she worked from 2021 to 2025. She served as Responsible Physician from 2023 to 2025. She has been an Assistant Professor at Galata University since 2021. Her interests include IVF, IUI, reproductive endocrinology, endometriosis and adenomyosis, and laparoscopic and hysteroscopic surgery.