Los mejores médicos del mundo — Página 22

Dr. Seniz Ustundag is a certified orthodontics specialist at the JCI-accredited Hisar Hospital Intercontinental. She earned her doctorate from Marmara University with a focus on temporomandibular disorders. Dr. Ustundag treats complex dental alignment issues in children, teens, and adults.

• Performs orthodontic preparation for patients undergoing orthognathic surgery.
• Uses clear aligner systems including Invisalign First, Teen, and MA.
• Specially trained in lingual therapy and Roth techniques.
• Treats congenital conditions such as cleft lip and palate.

Dr. Ilknur Erenler Bayraktar is a general surgeon at Memorial Şişli Hospital in Istanbul. She focuses on colorectal surgery, gastrointestinal oncology, and laparoscopic techniques. Dr. Bayraktar earned her medical degree and residency at Istanbul University Cerrahpaşa. She practiced at the Cleveland Clinic Digestive Disease Institute in the USA.

• Holds European Board of Coloproctology (EBSQ-C) specialist certification.
• Completed clinical training at Klinikum rechts der Isar in Germany.
• Specializes in minimally invasive and robotic surgical methods.
• Member of the European Society of Coloproctology and the European Surgical Society of Oncology.

Dr. Sertac Demirel is a general surgery specialist at Memorial Şişli Hospital in Istanbul. He focused on surgical care and oncology for over three decades. Dr. Demirel treats patients at a premier multidisciplinary medical center in Turkey.

• Serves as a General Surgery Specialist at the JCI-accredited Memorial Şişli Hospital.
• Former Assistant Head Physician at Memorial Hizmet Hospital.
• Expertise covers complex surgical interventions and oncological cases.
• Works at a facility with a 90% success rate in organ transplantation.

Dr. Erdem Akbal is a gastroenterologist at Memorial Şişli Hospital and Memorial Bahçelievler Hospital. He has authored over 100 international indexed publications. Dr. Akbal completed specific training in interventional endoscopy at Jichi Medical University in Japan. He holds academic rank as a professor.

• Completed training for endoscopic ultrasound at Johns Hopkins Hospital in the USA.
• Trained in POEM and gastrointestinal motility at Amsterdam Medical Center.
• Member of the Turkish Society of Gastroenterology and the Gastrointestinal Endoscopy Society.
• Works at Memorial Şişli, the first hospital in Turkey to earn JCI accreditation.

Dr. Servet Alan is a specialist in infectious diseases and clinical microbiology at Memorial Şişli Hospital. He holds a Master’s degree in pediatric infectious diseases from Istanbul University. Dr. Alan also earned a Master’s in hospital and healthcare management. He treats patients at a JCI-accredited facility known for world-class safety standards.

• Member of the Klimik Association and the Turkish Society of Microbiology.
• Active member of the Association for Hospital Infections and Control.
• Served as a specialist at Haseki Training and Research Hospital for 15 years.
• Participates in numerous international microbiology congresses and seminars.

Dr. Ali Osman Koyuncuoglu specializes in obstetrics, gynecology, and IVF at Memorial Bahçelievler Hospital. He has practiced reproductive medicine for two decades at top Turkish medical centers. Dr. Koyuncuoglu holds memberships in the American Society for Reproductive Medicine and ESHRE.

• Completed training at Brussels IVF Center and the Regionshospitalet Skive IVF in Denmark.
• Trained in robotic surgery at Acıbadem University and laparoscopic techniques at IRCAD Strasbourg.
• Maintains expertise in reproductive endocrinology through the Turkish Society of Reproductive Medicine.
• Works at JCI-accredited Memorial Bahçelievler Hospital, an eco-friendly facility in Istanbul.

Dr. Savas Kansoy is a pediatric hematologist and oncologist at Anadolu Medical Center. He founded Turkey’s first pediatric bone marrow transplantation units. Dr. Kansoy treates children with leukemia, lymphoma, and aplastic anemia. He is a primary contributor to national stem cell transplant registries.

• Founded pediatric oncology and bone marrow transplant clinics across major Turkish hospitals.
• Performs haploidentical, allogenic, and autologous stem cell transplantations.
• Served as a board member of the Turkish Society of Hematology.
• Works at Anadolu Medical Center, an affiliate of the Johns Hopkins Hospital.

Dr. Umit Tuncel is an ENT specialist at Lokman Hekim Istanbul Hospital. He spent 15 years in clinic leadership roles across three major Turkish medical centers. Dr. Tuncel specializes in head and neck cancers and sleep apnea surgery. He treats both adults and children for ear, nose, and throat conditions.

• Former Head of Clinic at Ankara Oncology Training and Research Hospital.
• Focuses on rhinoplasty and pediatric ENT diseases.
• Works at JCI-accredited Lokman Hekim Istanbul Hospital.
• Practices at a facility holding ISO 9001 quality management certification.

Dr. Yasemin Ongun is an ENT and Head & Neck Surgery specialist at Hisar Hospital Intercontinental. She focuses on rhinoplasty, endoscopic sinus surgery, and pediatric procedures. Dr. Ongun completed specialized training in Otology-Neurotology and Audiology at Hacettepe University. She serves at a JCI-accredited medical center in Istanbul.

• Performs endoscopic endonasal dacryocystorhinostomy for tear duct obstructions.
• Treat pediatric conditions including tonsil, adenoid, and ear tube surgeries.
• Specializes in snoring and sleep apnea surgical treatments.
• Former deputy chief physician with years of experience in private healthcare.

Dr. Suveyda Gozukucuk is an infectious disease specialist at Hisar Hospital Intercontinental in Istanbul. She focuses on hospital-acquired infections and sterilization protocols. Dr. Gozukucuk also treats viral hepatitis and hepatitis C cases. She practices at a JCI-accredited facility recognized for high safety standards.

• Specializes in infection management for immunocompromised patients.
• Expertise in hospital sterilization and disinfection procedures.
• Completed medical specialization at Erciyes University Faculty of Medicine.
• Treats patients at a hospital serving over 500,000 people annually.

Dr. Mustafa Saglam is the Head of the Cardiology Department at Hisar Hospital Intercontinental. He is a cardiologist and vascular surgeon specializing in aortic aneurysm repair and heart valve procedures. Dr. Saglam trained at Marmara University and Kosuyolu Heart Teaching and Research Hospital. He works at a JCI-accredited facility in Istanbul.

• Performs endovascular repair of abdominal aortic aneurysms.
• Treats coronary artery disease, arrhythmia, and hypertension.
• Proficient in balloon valvuloplasty and temporary pacemaker implantation.
• Conducts diagnostic imaging including stress tests and ambulatory cardiac monitoring.

Dr. Ahmet Nevzat Nayir is a pediatric nephrology specialist at Memorial Şişli Hospital in Istanbul. He serves as a Professor at the Istanbul Faculty of Medicine. Dr. Nayir specializes in treating kidney and urinary tract conditions in children. He works at the first hospital in Turkey to earn JCI accreditation for safety.

• Holds a professorship in the Division of Children's Nephrology.
• Treats complex pediatric kidney diseases at a leading multidisciplinary medical center.
• Practices at a facility with a 90% success rate in organ transplantation.
• Maintains an academic role alongside his clinical practice at Memorial Şişli.

Dr. Cemile Dilek Uysal is a dermatologist at Hisar Hospital Intercontinental in Istanbul. She graduated with honors from Akdeniz University. Dr. Uysal treats various skin conditions, including acne, eczema, and psoriasis. She also manages parasitic diseases such as scabies and hair disorders like alopecia.

• Specializes in medication therapy for acne and viral or bacterial skin diseases.
• Treats fungal infections and complex cases of chronic pruritus or itching.
• Works at Hisar Hospital, a JCI-accredited facility meeting high safety standards.
• Provides care at a center serving over 500,000 international patients annually.

Dr. Ibrahim Erdim is an ENT specialist at Lokman Hekim Istanbul Hospital. He specializes in rhinoplasty, head and neck cancer surgery, and pediatric ENT. Dr. Erdim developed the Nasal Axis Lateralization Suture Technique for crooked nose correction. He works at a JCI-accredited facility that treats 10,000+ patients annually.

• Authored the Stapes Stabilizing Cartilage Graft technique for middle ear surgery.
• Published research on the effects of propolis on salivary glands after radiotherapy.
• Member of the Istanbul Association of ENT and Head & Neck Surgeons.
• Expertise includes neurotology and medical facial aesthetic procedures.

Dr. Ozan Ali Erdal is a pediatric orthopedic surgeon at Lokman Hekim Istanbul Hospital. He specializes in treating cerebral palsy and osteogenesis imperfecta. He focuses on deformity correction and limb lengthening. Dr. Erdal performs complex surgeries for congenital bone deficiencies and hip dislocation. He works at a JCI-accredited facility that treats 10,000+ patients annually.

• Specializes in clubfoot (PEV) treatment and height extension procedures.
• Treats pediatric fractures, malunions, and chronic foot deformities.
• Completed medical specialization at Istanbul University-Cerrahpaşa.
• Corrects congenital conditions like fibular hemimelia and bowlegs.

Dr. Serhat Seyhan is the Head Physician at the Genetic Disorders Evaluation Center in Istanbul. He is a medical genetics specialist based at Memorial Şişli Hospital. Dr. Seyhan completed his genetic training at Karadeniz Technical University. He also gained international perspective as a scholar at the University of Miami.

• Former Chair of the Department of Medical Genetics at Istanbul Medipol University.
• Served as Head Physician for genetic centers at two major Turkish university hospitals.
• Member of the medical team at JCI-accredited Memorial Şişli Hospital.
• Expert in evaluating complex hereditary conditions and clinical genetic diagnostics.

The doctor has a background in Nutrition and Dietetics, having completed a bachelor's degree from Gumushane University. They have professional experience working in various health and wellness centers, including Diettherapy Nutrition and Diet Counseling Center, Mestetik Aesthetics and Beauty Center, and Estetica Beauty and Aesthetic Center. Additionally, the doctor has contributed to fitness and dietary services at Academy Fitness and Zafiran Restaurant, focusing on diet therapy and nutritional counseling.

Dr. Servet Izci is a cardiologist with 24 years of clinical practice. He earned his MD at Fırat University (1996–2002). He completed a cardiology residency at Kartal Koşuyolu Training and Research Hospital (2010–2015). He worked as a consultant cardiologist at Kartal Koşuyolu (2015–2025) and Pendik Medical Park (2025–2026). He now practices at Lokman Hekim Istanbul Hospital (2026–present). He is a member of the Istanbul Medical Chamber and the Turkish Society of Cardiology.

Clinical focus: coronary angiography and stenting via radial access. He also performs peripheral and carotid artery interventions. He manages arrhythmias, hypertension, hyperlipidemia, and heart failure. Scientific output: three publications. Topics include catestatin as a predictor of mortality in acute pulmonary embolism, ECG changes during alcohol withdrawal, and the increased risk of high‑grade AV block in non‑O blood types.