Page 25 - Best Doctors in the World

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.

Prof. Dr. Erdem Akbal is a Gastroenterology Specialist at Memorial Şişli and Memorial Bahçelievler Hospitals in Istanbul. He previously served at Liv Hospital Ulus, Medicana Ataşehir, Florence Nightingale Hospitals, and Çanakkale Onsekiz Mart University. He became an Associate Professor in 2014 and a Professor in 2019.

He received advanced training in interventional endoscopy. He completed ESD at Jichi Medical University in Japan. He trained in POEM/ESD and gastrointestinal motility at Amsterdam Medical Center. He trained in EUS at Johns Hopkins Hospital in the USA. He continues to attend ESG, ERCP, EUS, ESD, and POEM courses and congresses.

He has authored more than 100 international indexed publications. His presentations have won awards. He is a member of the Turkish Society of Gastroenterology, the Gastrointestinal Endoscopy Society, the Hepatobiliary and Pancreatology Society, the Liver Diseases Association, the IBD Association, and the Turkish Liver Research Association.

Dr. Taha Bahadir Uskul is a specialist in pulmonology and tuberculosis at Memorial Şişli Hospital in Istanbul. He previously worked at Florence Nightingale Hospitals and Istanbul Okan University Hospital.

He earned his MD from Istanbul University. He completed his specialization in pulmonology and tuberculosis at SB Istanbul Süreyyapaşa Chest Diseases and Thoracic Surgery Training and Research Hospital. He received Turkish Board Certification in Pulmonology in 2002. He is trained in interventional bronchoscopy, medical thoracoscopy, transbronchial needle aspiration, rigid bronchoscopy, and polysomnography.

His awards include Excellent Presentation and the Harasawa Fellowship (APSR, 2006). He also received a Certificate of Appreciation in 2008. He has 11 international and 23 national peer-reviewed publications and numerous presentations.

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. Cemile Dilek Uysal has graduated from Akdeniz University Faculty of Medicine with honors in 1992. She did compulsory service for 3 years in Merzifon district of Amasya. Then she won the dermatology department of Haydarpaşa Numune Hospital, which was her first choice at TUS. From there she specialized in dermatology. Currently, she serves in the Intercontinental Dermatology department of Hisar Hospital.

Her areas of interest include acne, fungi, eczema, urticaria, pruritus (itching), viral and bacterial diseases, parasitic diseases such as scabies (scabies) and pediculus capitis, various hair diseases, and psoriasis. 

Dr. Alihan Gurkan is a gastrointestinal surgeon with over 25 years of experience. He specializes in bariatric and advanced gastrointestinal procedures. For more than ten years, he led the Department of General Surgery. He is known for his focus on patient safety and his commitment to international standards.

Dr. Gurkan is a member of several professional organizations, such as the American Society of Transplant Surgeons and the Turkish Society of Surgery. He completed advanced fellowships in cardiovascular and multi-organ transplantation at leading US institutions. His practice is known for high success rates and the use of modern surgical techniques.

Dr. Suleyman Aliyazicioglu is a plastic, reconstructive, and aesthetic surgery specialist at Memorial Göztepe Hospital (2025–present). He previously worked at Kırklareli Training and Research Hospital (2022–2025).

He earned his MD from the Gazi University Faculty of Medicine (2008–2014). He completed specialty training in plastic, reconstructive, and aesthetic surgery at Pamukkale University (2022). He is a member of the Istanbul Medical Chamber.

His professional development includes an Erasmus exchange at the Medical University of Lublin (2013). He attended the Plastic, Reconstructive and Aesthetic Surgery Residents’ School (2018) and Eurasian Non-Surgical Days (2019). He also took part in the National Congress of Plastic, Reconstructive and Aesthetic Surgery (2022, 2023).

2014 - Present, Istanbul/Istanbul/Türkiye

MEMORIAL SISLI HOSPITAL

Ophthalmologist

2011 - 2013, Istanbul/Istanbul/Türkiye

WORLD EYE HOSPITAL

Ophthalmologist

2002 - 2011, Samsun/Samsun/Türkiye

ONDOKUZ MAYIS UNIVERSITY FACULTY OF MEDICINE

Head of Department of Ophthalmology

1992 - 2011, Samsun/Samsun/Türkiye

ONDOKUZ MAYIS UNIVERSITY FACULTY OF MEDICINE

Faculty Member of the Department of Ophthalmology

1989 - 1991, Samsun/Samsun/Türkiye

SAMSUN STATE HOSPITAL

Ophthalmologist (Compulsory Service)

1983 - 1984, Ankara/Ankara/Türkiye

ÇANKAYA GOVERNMENT MEDICAL OFFICE

General Practitioner (Compulsory Service)

1982 - 1983, Zonguldak/Zonguldak/Türkiye

CAYCUMA CENTRAL HEALTH CENTER

General Practitioner (Compulsory Service)

The doctor graduated from Cerrahpaşa School of Medicine, Istanbul University in 1998 and completed a residency at Istanbul School of Medicine in 2010. Specializing in internal diseases, the doctor provides comprehensive assessment, differential diagnosis, treatment, and monitoring services at Hisar Hospital Intercontinental. With a focus on endocrine and metabolic diseases, the doctor is well-versed in managing a wide range of internal medical conditions.

Previous training and work experience include positions at Andirin State Hospital and Istanbul University Cerrahpaşa Faculty of Medicine.

2012 - Present, Istanbul/Istanbul/Türkiye

MEMORIAL ATASEHIR HOSPITAL

Pediatric Chest Diseases Specialist \ Pediatric Health and Diseases Specialist

2012 - Present, Istanbul/Istanbul/Türkiye

MEMORIAL SISLI HOSPITAL

Pediatric Chest Diseases Specialist \ Pediatric Health and Diseases Specialist

1995 - Present, Istanbul/Istanbul/Türkiye

MARMARA UNIVERSITY FACULTY OF MEDICINE

Member of the Department of Pediatric Chest Diseases

2022 - Present, Istanbul/Türkiye

MEMORIAL BAHÇELİEVLER HOSPITAL

Obstetrics and Gynaecology Specialist

2018 - 2022, Istanbul/Türkiye

BEZMIALEM FOUNDATION UNIVERSITY FACULTY OF MEDICINE HOSPITAL

Obstetrics and Gynaecology Specialist

2016 - 2018, Adiyaman/Türkiye

KAHTA STATE HOSPITAL

Obstetrics and Gynaecology Specialist

Dr. Ibrahim Erdim is an ENT specialist. He studied at the Istanbul Faculty of Medicine from 2003 to 2009. He completed his ENT residency at Bakırköy Dr. Sadi Konuk Training and Research Hospital from 2010 to 2014. His specialty thesis examined polysomnographic findings in obese adolescents with and without metabolic syndrome.

Experience: He worked at Erbaa State Hospital from 2014 to 2017. He served in the Department of Otorhinolaryngology at Tokat Gaziosmanpaşa University Faculty of Medicine from 2017 to 2020. He worked at Sancaktepe Training and Research Hospital, Otorhinolaryngology, from 2020 to 2025. He has been an ENT specialist at Lokman Hekim Istanbul Hospital since 2016.

Interests: Otology and neurotology; head and neck cancer surgery; rhinoplasty and facial plastic surgery; pediatric ENT; medical facial aesthetic procedures.

Publications include Stapes Stabilizing Cartilage Graft, Nasal Axis Lateralization Suture Technique in Crooked Nose, and Effect of Propolis on Salivary Glands After Radiotherapy. Memberships: Turkish Medical Association and Istanbul Association of Ear, Nose, Throat and Head & Neck Surgeons.

• 2001 - Currently, İstanbul/İstanbul/Turkey
  MEMORIAL ŞİŞLİ HOSPITAL
  Chest and Cardiovacular Surgeon
• 1997 - 2001, İstanbul/İstanbul/Turkey
  FLORENCE NIGHTINGALE HOSPITAL
  Chest and Cardiovacular Surgeon
• 1992 - 1997, İstanbul/İstanbul/Turkey
  YEDİKULE PULMONARY DISEASES HOSPITAL
  Chest and Cardiovacular Surgeon
• 1990 - 1992, İzmir/İzmir/Turkey
  HATAY MILITARY HOSPITAL
  Medical Third Lieutenant