Page 6 - Best diagnosticians in Istanbul: TOP 120 doctors

Dr. Leyla Elmas is a Dermatology Specialist at Memorial Bahçelievler Hospital in Istanbul. She previously worked at Yüksekova State Hospital and Hacettepe University Faculty of Medicine. Dr. Elmas completed her dermatology training at Hacettepe University. She earned her MD from Istanbul University – Cerrahpaşa, graduating second in her class with a GPA of 3.89 out of 4.00.

Dr. Elmas has published 10 articles in international peer-reviewed journals. She holds a national patent. She has also given several oral and poster presentations at scientific meetings. In 2024, she received the AAD Strauss & Katz World Congress Scholarship. She was named the 2023 ASDS International Dermatology Specialist of the Year.

Dr. Elmas is a member of the Turkish Society of Dermatology and the Women’s Dermatologic Society. She has completed observerships and research at Harvard, Johns Hopkins, and King’s College London.

Dr. Ali Osman Koyuncuoğlu is a specialist in obstetrics, gynecology, and IVF at Memorial Bahçelievler Hospital (2025–present). He has 20 years of practice. His experience includes roles at Yeditepe University IVF Center, FJK Hospital IVF Center, and Acıbadem Family Hospital. He also ran a private clinic (2015–2025).

Education and credentials: MD, Istanbul University (Çapa). Residency in obstetrics and gynecology at Kartal Training and Research Hospital. Training in reproductive endocrinology and infertility (IVF) at Yeditepe University (2009–2010). Professional memberships: Turkish Medical Association, Turkish Society of Gynecology, TSRM, ESHRE, ASRM. Advanced training at Brussels IVF Center and Fertilitetsklinikken Regionshospitalet Skive IVF (Denmark). Additional courses at Acıbadem University (robotic surgery) and IRCAD Strasbourg (laparoscopic surgery).

Dr Nimet Ozcan is a dermatologist with over 10 years of experience. She graduated from the Erciyes University Faculty of Medicine in 2008. She completed her dermatology specialization at Ankara Numune Training and Research Hospital in 2014. She provides care in both medical and cosmetic dermatology.

Clinical focus: acne, eczema, psoriasis, and fungal and bacterial infections. Dermato-oncology with early detection and surgical excision of suspicious lesions. Dermal fillers, chemical peels, and mesotherapy. Laser treatment for vascular lesions, pigmentation disorders, and hair removal. Pediatric dermatology. Languages: English.

Dermatologist Dr. Osman Serdar Akkaya graduated from Çukurova University Faculty of Medicine in 1981. He completed his dermatology specialization there in 1985. He has more than 35 years of experience and is among the most senior dermatologists in the region.

His practice includes general dermatology, such as psoriasis, eczema, acne, vitiligo, and urticaria. He focuses on dermato-oncology and performs surgery for benign and malignant skin tumors. He also offers cosmetic dermatology, including fillers, mesotherapy, and chemical peels. He provides laser and light-based treatments for vascular lesions, pigment disorders, scars, and hair removal. He treats geriatric skin conditions and chronic skin diseases.

Dr. Murat Erol is a general dentist with over 20 years of clinical experience. He graduated from Ege University Faculty of Dentistry in 2002. He provides care in English.

He offers preventive care and restorative treatments, including aesthetic fillings, crowns, and bridges. He also performs root canal therapy. His aesthetic services include whitening, composite bonding, and smile design. He provides fixed and removable prosthetics. His plans focus on oral function and natural aesthetics. Each treatment is tailored to the patient.

Dyt. Yaren Nur Güngör is a dietitian. She graduated from the Faculty of Nutrition and Dietetics. She provides evidence-based, personalized nutrition counseling in English. She designs tailored programs for health promotion, disease management, and weight control.

Her clinical focus includes diet plans for diabetes, heart disease, thyroid disorders, and other metabolic issues. She also guides weight loss and gain and improves body composition. She offers sports nutrition and nutrition care for children and teens. She provides preventive nutrition with lifestyle counseling. Her approach is patient-centered and motivating.

Dr Erdem Gelegen is an ophthalmologist with over 20 years of experience in cataract, refractive, retinal, glaucoma, and corneal/anterior segment care. He performs phacoemulsification with premium intraocular lenses. He provides laser vision correction for myopia, hyperopia, and astigmatism. He treats diabetic retinopathy, age-related macular degeneration, retinal detachment, keratoconus, and anterior segment disorders, including corneal transplants.

He graduated from Istanbul University Cerrahpaşa Faculty of Medicine in 1999. He completed his ophthalmology residency at Okmeydanı Training and Research Hospital in 2004. He is known for precise microsurgery and the use of advanced ophthalmic technologies.

Dr. Cevat Azeroglu is a radiologist. He graduated from the Tabriz University Faculty of Medicine in 1987. He completed his radiology specialization at Ondokuz Mayıs University in 2011. Born in 1959, he provides advanced imaging to support accurate, timely decisions for many specialties.

His expertise includes conventional radiology with X-rays for musculoskeletal and chest disease. He performs ultrasound of the abdomen, thyroid, vessels, and soft tissues. He interprets CT and MRI for neurological, cardiovascular, and oncologic conditions. He practices interventional radiology with image-guided, minimally invasive procedures. He also focuses on oncologic imaging for staging and follow-up. He is known for diagnostic precision, use of modern imaging tools, and strong teamwork.

Dr. Murat Ulusan is a specialist in otolaryngology and head and neck surgery. He works at Memorial Bahçelievler Hospital (2018–present) and at Istanbul University, Istanbul Faculty of Medicine (2010–present). He previously worked at Diyarbakır State Hospital (2009–2010) and Erzurum Regional Training and Research Hospital (2008–2009). He completed his ENT residency at Istanbul University (2003–2008). He received his MD (English) from Marmara University.

Achievements include the EORL Congress Best Poster Award (2016) and an observer program at Johns Hopkins Otolaryngology (2012, USA). His research includes 17 international and 15 national peer‑reviewed articles, 29 posters, and three TÜBİTAK projects. He has translated two books and written three book chapters. He serves as an editor for one national journal. He is a member of the Turkish Society of Otolaryngology.

Dr. Koray Tuncer is a gastroenterology specialist at Memorial Şişli Hospital in Istanbul. He has worked there since 2009. He previously served at Private Yunus Emre Hospital from 2003 to 2009.

He earned his MD from Istanbul University, Istanbul Faculty of Medicine (1982–1988). He completed an Internal Medicine residency at SSK Okmeydanı Hospital (1989–1993). He served as Chief Assistant in Internal Medicine at Kartal Training and Research Hospital (1995–1998). He completed gastroenterology fellowships at Haydarpaşa Numune Hospital (1998–1999) and Ege University (1999–2003).

Professional memberships include the Turkish Society of Gastroenterology, the Turkish Association for the Study of the Liver, and the Turkish Medical Association.

He has 5 international and 13 national publications. He has delivered 8 international and 41 national presentations. His additional training includes summer internships at Kantonsspital Aarau (Anesthesiology, 1985) and Kantonsspital Münsterlingen (Internal Medicine, 1987). He regularly attends postgraduate gastroenterology and hepatology courses and national congresses.

Dr. Ibrahim Cansaran Tanıdır is a pediatric cardiologist at Memorial Ataşehir Hospital. He co-founded the Pediatric Cardiology Department at Başakşehir Çam & Sakura City Hospital. He led its cardiac catheterization laboratories. He has been a professor of pediatric cardiology since 2022.

He has over 100 international and over 50 national publications. His work has more than 1,200 citations, with an h-index of 16. He has delivered over 100 international and over 700 national presentations. He has received six national and one international award. He ranked second in Turkey in the 2017 National Pediatric Cardiology Board Exam. He served as AEPC National Representative (2011–2014) and as Vice President of the Interventional Cardiology Working Group (2019–2024). His training includes Arkansas Children’s (PICU), Fuwai Heart Center (angiography), and LVAD training in 2023. Since 2018, he has performed more than 250 therapeutic angiography procedures in Kosovo, Libya, Mali, Uganda, and Kenya.

Dr. Umut Dinçer is a specialist in Physical Medicine and Rehabilitation at Memorial Bahçelievler Hospital, where he has worked since 2018. From 2000 to 2018, he served at Medicana Çamlıca, Medical Park Bahçelievler, GATA Haydarpaşa, and Gümüşsuyu Military Hospital. He also gained experience at Cardiff University Hospital of Wales in 1995.

He earned his MD in 1994 from GATA Military Medical Academy. He completed his PM&R residency there in 2000. He is a member of the Turkish Medical Association, the Turkish Society of Physical Medicine and Rehabilitation, and the Algology Association.

He has published 60 scientific articles and delivered 40 congress presentations. He is the author of 2 books and 4 book chapters, and has translated 12 chapters. He has given lectures and training at many national and international congresses.

Dr. Sema Karakas specializes in gynecologic oncology surgery. She also performs minimally invasive gynecologic surgery, including laparoscopy and V-NOTES (scarless) techniques.

She offers V-NOTES hysterectomy and cyst removal. She performs surgery for uterine cancer and tubal ligation. She provides a full range of laparoscopic gynecologic procedures. She treats urinary incontinence with medical, laser, or surgical options and pelvic floor physiotherapy. She manages HPV with diagnosis, treatment, and follow-up. She performs colposcopy, LEEP, and conization. She provides endometriosis care and surgery. She treats polyps and uterine septum with hysteroscopy. She offers perimenopausal and menopausal care and bioidentical hormone therapy.

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.

Dr. Erol Bozbora is an Ear, Nose and Throat (ENT) specialist at Memorial Bahçelievler Hospital. He earned his medical degree at Istanbul University Faculty of Medicine (2009–2015). He completed his ENT residency there (2016–2022).

His clinical work includes ENT practice at Aktif International Hospital Bahçelievler (2024–2025). He completed compulsory service at Iğdır Dr. Nevruz Erez State Hospital (2022–2024). He completed a clinical internship at HNO-Zentrum Simmering in Vienna (2023). Earlier, he completed compulsory service at Beyoğlu Community Health Center (2015–2016). He also completed an internship at the World Health Organization in Switzerland (2013).