Page 23 - Best Doctors in the World

Op. Dr. Cemile Elif Erol is a Gynecologist and Obstetrician. She graduated from Atatürk University Faculty of Medicine in 2018. She completed her specialization in Gynecology and Obstetrics at Marmara University in 2023.

Dr. Erol has experience in pregnancy monitoring and high-risk pregnancy management. She performs both normal and cesarean deliveries. She is skilled in advanced laparoscopic and hysteroscopic surgeries. Dr. Erol also diagnoses and treats polycystic ovary syndrome and hormonal disorders. She provides cervical cancer screening and manages urinary incontinence and genital prolapse. She offers menopausal care, including bioequivalent hormone therapies.

 Medical Experience

- *2023 - Present*: Memorial Şişli Hospital  

 Neurosurgery Specialist / Istanbul

- *2013 - 2023*: Bezmialem University Faculty of Medicine  

 Neurosurgery Specialist / Istanbul

- *2011 - 2013*: Konya Beyşehir State Hospital  

 Neurosurgery Specialist / Konya

- *2010 - 2011*: Bezmialem University Faculty of Medicine  

 Research Assistant in Brain and Nerve Surgery / Istanbul

 Medical Education

- *2021 - 2023*: Bezmialem Vakif University Faculty of Medicine  

 / Istanbul / Turkey

- *2006 - 2011*: Bezmialem Vakif University Faculty of Medicine  

 / Istanbul / Turkey

- *2000 - 2006*: Istanbul University Cerrahpasa Faculty of Medicine  

 / Istanbul / Turkey

2019 - Present, Istanbul/Istanbul/Türkiye

MEMORIAL ATASEHIR HOSPITAL

Brain and Nerve Surgery Specialist

2019 - Present, Istanbul/Istanbul/Türkiye

ISTANBUL BIRUNI UNIVERSITY

Specialist in the Department of Brain and Nerve Surgery

2017 - 2019, Istanbul/Istanbul/Türkiye

KOC UNIVERSITY HOSPITAL

Specialist in the Department of Brain and Nerve Surgery

2015 - 2017, Istanbul/Istanbul/Türkiye

ISTANBUL BIRUNI UNIVERSITY

Specialist in the Department of Brain and Nerve Surgery

2013 - 2015, Istanbul/Istanbul/Türkiye

ISTANBUL UNIVERSITY CERRAHPAŞA MEDICAL FACULTY

Specialist in the Department of Brain and Nerve Surgery

2010 - 2013, Istanbul/Istanbul/Türkiye

BEZM-I ALEM FOUNDATION UNIVERSITY

Specialist in the Department of Brain and Nerve Surgery

2008 - 2009, Diyarbakir/Diyarbakir/Türkiye

SILVAN DOCTOR YUSUF AZIZOGLU STATE HOSPITAL

Specialist in the Department of Brain and Nerve Surgery

2001 - 2007, Istanbul/Istanbul/Türkiye

ISTANBUL UNIVERSITY CERRAHPAŞA MEDICAL FACULTY

Specialist in the Department of Brain and Nerve Surgery

Assoc. Prof. Dr. Oğuzhan BABACAN completed his undergraduate, specialty and sub-specialty education at GATA Military Medical Faculty/Ankara. After becoming a specialist in Pediatrics, he worked in the field of Social Pediatrics for two years, where Healthy Baby Monitoring and vaccine follow-up were carried out. Then, she completed her subspecialty training in Pediatric Hematology and Oncology and continued her studies in the field of pediatric blood and cancer diseases. In addition to the treatment of children suffering from leukemia, lymphoma, solid tumors and other blood diseases, she has been working in the Bone Marrow Transplantation (Transplant) Unit for 13 years in Allogeneic (unrelated and intrafamilial), Autologous (from the patient himself) and Haploidentical (partially HLA compatible) hematopoietic stem cell transplantation. In 2018, he received the title of Associate Professor in the field of Pediatric Hematology and Oncology Science/Art.

MEDICAL AREAS OF INTEREST

Healthy baby follow-up and vaccinations

Lymph node enlargement

Pediatric patients with anemia (anemia)

Leukemia

Lymphoma

Bone Marrow Transplant

ITP

Thalassemias

Hemophiliacs

Solid tumors

Hemangioma

Childhood blood disorders

Children with frequent infections

Fever of unknown origin

Malnutrition in children

The doctor specializes in orthodontic treatments, including fixed and transparent aligners, as well as addressing jaw irregularities and orthopedic correction. The doctor completed dental education at Ege University, Turkey, followed by advanced training in the Orthodontics department at the same institution.

Continuing professional development includes comprehensive courses on the Diamond System, diagnosis, treatment planning, and innovations in accelerating orthodontic tooth movement.

The doctor is an ECFMG and ESMO-certified medical and breast oncologist with over 20 years of experience, specializing in solid cancer, breast cancer, colorectal, and lung cancer treatment. Since 2016, the doctor has been a medical oncology specialist at Anadolu Medical Center.

The doctor graduated from Gülhane Military Medical Academy with a degree in general medicine and completed specialties in internal and medical oncology. The doctor has been a professor and associate professor at Gülhane Military Medical Academy, contributing significantly to medical education.

With over 110 papers on cancer management, the doctor is a member of several prestigious oncology organizations.

The doctor has a distinguished career in cardiovascular surgery with a focus on minimally invasive and robotic techniques. Having held positions at prestigious institutions worldwide, the doctor has made significant contributions to research and education in the field.

After completing a specialization in cardiovascular surgery at Uludag University, the doctor gained experience at various medical centers, including Glasgow University and Columbia University. The doctor has served as an Associate Professor at Geneva University and a Professor at Gaziantep University, where they also headed the Lung Transplant Center.

The doctor is a member of several professional societies, including the European Cardio-Thoracic Surgery and the International Society for Heart & Lung Transplantation.

The doctor graduated from the School of Medicine at Ankara University and completed a medical specialty in Ophthalmology there. Specializing in corneal diseases and cornea transplantation, the doctor has authored numerous papers and performed a significant number of surgeries in these fields. Areas of medical interest include general eye examination, cataract, glaucoma, corneal and conjunctival diseases, and cornea transplant. The doctor has held academic positions at Ankara University and Selcuk University, contributing to 175 scientific publications and 3 book chapters.

Dr. Onur Telli is a skilled urologist and pediatric urology specialist. He is known for his work in diagnosing and treating congenital urogenital anomalies. He has received awards from the European Association of Urology and the European Society for Pediatric Urology. These honors reflect his strong clinical and research skills.

Dr. Telli has published over 50 international articles and contributed to three book chapters in pediatric urology. His research includes important population-based studies, especially on nocturia in women of reproductive age. He is an active member of major urological associations. This shows his dedication to improving the field.

The doctor is a highly experienced cardiovascular surgeon with a distinguished career spanning over three decades. Currently, the doctor serves as the Head of the Cardiovascular Surgery Department at Memorial Sisli Hospital, a position held since 2001. Previously, the doctor led the Surgical Sciences department at Florence Nightingale Hospital from 1990 to 2001.

With a strong foundation in cardiovascular and surgical specialties from Istanbul University Institute of Cardiology, the doctor also gained significant international experience as Chief Resident of Cardiovascular Surgery at St. Thomas Hospital in London. The doctor began their career as Chief Assistant of Cardiovascular Surgery at Istanbul University Faculty of Medicine.

Medical Experience

- *2024 - Present*: Memorial Şişli Hospital  

 Ophthalmology Specialist / Istanbul

- *2022 - Present*: Private Clinic  

 Ophthalmology Specialist / Istanbul

- *2019 - 2022*: Liv Hospital Ulus  

 Ophthalmology Specialist / Istanbul

Medical Education

- *2014 - 2018*: Selcuk University Faculty of Medicine  

 / Konya / Turkey

- *2004 - 2010*: Azerbaijan Medical University Faculty of Medicine  

 / Baku / Azerbaijan

The doctor specializes in radiation oncology with over 32 years of experience. She has authored 114 scientific publications addressing various oncological issues. Her professional roles include being a Board Member and Chief Editor at the Turkish Society of Oncology and a Scientific Advisory Board Member at Turkiye Klinikleri Journal of Medical Sciences. She completed her medical training and residency in Radiation Oncology at Istanbul University, Istanbul Faculty of Medicine. The doctor is an active member of several professional societies, including the Turkish Society of Oncology, where she serves as Vice President.

Dr. Volkan Seneger completed medical school at Dokuz Eylül University Faculty of Medicine (2007–2014). He then trained in psychiatry at Göztepe Training and Research Hospital (2015–2019). He worked as a general practitioner at Erzurum Aşkale State Hospital (2014–2015). He practiced psychiatry at Düzce Atatürk State Hospital (2019–2022), Istanbul Pendik State Hospital (2022–2025), and Private Mercan Hospital (2025).

He currently practices at Lokman Hekim Istanbul Hospital (2025–present). He is a member of the Turkish Psychiatry Association and the Turkish Medical Association.

Dr. Umit Tuncel is an ENT specialist. He earned his medical degree from Ankara University Faculty of Medicine (1986–1992). He completed his ENT residency at Ankara Numune Training and Research Hospital (1993–1996). He has more than 30 years of ENT experience in Turkey.

He was Head of Clinic at Ankara Keçiören Training and Research Hospital (2005–2008) and at Ankara Oncology Training and Research Hospital (2008–2018, 2022–2024). This totals about 15 years in leadership roles. His practice focuses on head and neck cancers, surgery for snoring and sleep apnea, rhinoplasty, and pediatric ENT. He is currently an ENT specialist at Lokman Hekim Istanbul Hospital (2024–present).

2019 - Present, Istanbul/Istanbul/Türkiye

MEMORIAL SISLI HOSPITAL

Neurosurgery Specialist

2016 - 2019, Istanbul/Istanbul/Türkiye

ACIBADEM HEALTH GROUP

Neurosurgery Specialist

2015 - 2016, /USA

OREGON HEALTH AND SCIENCE UNIVERSITY

Neurosurgery Specialist

2013 - 2016, Mardin/Mardin/Türkiye

MARDIN STATE HOSPITAL

Neurosurgery Specialist

2012 - 2013, Istanbul/Istanbul/Türkiye

HASEKİ TRAINING AND RESEARCH HOSPITAL

Neurosurgery Specialization Training

2011 - 2012, Istanbul/Istanbul/Türkiye

MARMARA UNIVERSITY TRAINING AND RESEARCH HOSPITAL

Neurosurgery Specialization Training

2011 - 2011, /USA

JOHN'S HOPKINS UNIVERSITY

Neurosurgery Specialization Training

2008 - 2011, Istanbul/Istanbul/Türkiye

HASEKİ TRAINING AND RESEARCH HOSPITAL

Neurosurgery Specialization Training

The doctor has been associated with several prestigious medical institutions, making significant contributions to neurology through extensive research and scientific publications, particularly in Alzheimer's disease and epilepsy.

The doctor is a founding president of the Alzheimer's Association Denizli Branch and holds memberships in several notable organizations, including the International Society to Advance Alzheimer’s Research and Treatment and the Society for Neuroscience.

The doctor completed neurology specialization training at Ondokuz Mayis University and medical training at Ankara University Medical Faculty.

Dr. Serhat Seyhan is a medical genetics specialist. He is the Head Physician at the Genetic Disorders Evaluation Center, Memorial Şişli Hospital in Istanbul. He has also led genetic evaluation centers at Biruni University Hospital and Bakırköy Dr. Sadi Konuk Training and Research Hospital. Dr. Seyhan chaired the Department of Medical Genetics at Istanbul Medipol University.

He completed his medical genetics training at Karadeniz Technical University. He earned his MD from Cumhuriyet University. Dr. Seyhan gained international experience as a short-term scholar at the University of Miami. He is known for his leadership in clinical genetics and his academic work in the field.