Best Doctors in the World

Dr. Esra Esim Buyukbayrak is a perinatology subspecialist at Memorial Göztepe Hospital. She specializes in maternal–fetal medicine and complex fetal surgery. She practiced at Marmara University for a decade. Dr. Buyukbayrak holds specialized fetal surgery training from Centro Gestar in Brazil.

• Authored 86 international publications indexed in SCI and SSCI.
• Served as Head of Obstetrics and Gynecology at Marmara University.
• Completed reproductive health training with the World Health Organization in Geneva.
• Supervised 15 doctoral dissertations in her field of expertise.

Dr. Mehmet Guler is a professor and general surgeon at Medical Park Antalya Hospital Complex. He specializes in bariatric and metabolic surgery for obesity and type 2 diabetes. Dr. Guler uses the Da Vinci robotic system for precise gastric sleeve and bypass procedures. He holds a Master's degree in Health Law and a degree in Public Administration.

• Member of the Turkish Society for Obesity Surgery and the World Association of Laparoscopic Surgery.
• Performs robotic-assisted gastroectomy and endoscopic sleeve gastroplasty.
• Treats complex gastrointestinal conditions including Crohn’s disease and ulcerative colitis.
• Practices at the largest private hospital in the Mediterranean region.

Dr. Sabahattin Gunduz is a Professor of Cardiology at Memorial Göztepe Hospital in Istanbul. He specializes in heart health and diagnostic cardiology. Dr. Gunduz is a member of the European Society of Cardiology (ESC). He also belongs to the European Association of Percutaneous Cardiovascular Interventions.

• Teaches as a Professor of Medicine at Bahçeşehir University.
• Maintains membership in the European Association of Cardiovascular Imaging.
• Completed residency at Kartal Koşuyolu High Specialty Training and Research Hospital.
• Works at Memorial Göztepe Hospital, a facility equipped with 512-slice CT imaging.

Dr. Firdavs Ahmedov has performed 3,500+ hair transplant procedures at Smile Hair Clinic in Istanbul. He specializes in FUE, DHI, and revision surgeries for men and women. Dr. Ahmedov completed surgical rotations at Mount Sinai Hospital and Bronx Military Hospital in New York. He is an associate member of the International Society of Hair Restoration Surgery.

• Uses sapphire blades and manual extraction for natural-looking results.
• Treats beard, eyebrow, and eyelash loss alongside scalp restoration.
• Served as Vice President of the International Patient Center at Medicana Health Group.
• Operates at Smile Hair Clinic, a TEMOS-accredited facility recognized by the BBC.

Dr. Hasan Fevzi Batirel is a thoracic surgeon at Memorial Gezpete Hospital in Istanbul. He treats diseases of the chest, including the lungs, esophagus, and chest wall. Dr. Batirel previously served as Deputy Clinic Chief at Kartal Lütfi Kırdar Hospital. He also held a long-term academic role at Marmara University Faculty of Medicine. His work is supported by Memorial Gezpete's JCI accreditation for safety and quality.

• Specializes in complex thoracic surgery and respiratory conditions.
• Held leadership roles at major Turkish training and research hospitals.
• Practices at a hospital with 99% success rates in major transplants.
• Works at a facility recognized for international treatment standards.

Dr. Cagatay Cetinkayaa is a general surgeon in Ankara. He practices at Memorial Ankara Hospital. At Ankara University, he served as Lead Specialist for kidney–pancreas transplantation and Associate Lead for liver transplantation. He was also a Professor of General Surgery at Ankara University.

He holds the FEBS (European Diploma in Transplant Surgery). He is the UEMS Delegate for Transplant Surgery in Türkiye. His fellowships include abdominal multiorgan transplantation at the University of Calgary and transplantation research at the Thomas Starzl Institute.

He has authored over 40 international papers and 4 book chapters. He has given over 100 presentations. His work has more than 1,000 citations, and his h-index is 11. He has received multiple congress awards. He is a member of ESOT, EA-HPBA, the Turkish Surgical Association, the Turkish HPB Surgery Association, and the Turkish Association of Organ Transplantation Organizations Coordination.

Dr. Abuzer Dirican is the Head of General Surgery at Istanbul Florence Nightingale Hospital. He authored the liver transplant chapter in Schwartz’s Principles of Surgery. He treats complex cases involving cholangiocarcinoma, liver transplantation, and colorectal cancer. Dr. Dirican earned his medical degree from Hacettepe University.

• Completed a clinical fellowship in liver transplantation and hepatobiliary surgery.
• Co-authored an analysis of over 300 living-donor liver transplants.
• Performed research on hepatic vein reconstructions and thyroid surgical complications.
• Works at a JCI-accredited hospital certified as a Smart-and-Green facility.

Dr. Hakan Kocaman is a pediatric surgeon at Memorial Göztepe Hospital in Istanbul. He specializes in laparoscopic inguinal hernia repair and hypospadias repair. Dr. Kocaman previously served as Associate Professor of Pediatric Surgery at Istanbul University. He completed his medical degree and residency at the same institution.

• Member of the European Paediatric Surgeons’ Association (EUPSA).
• Is a member of the International Pediatric Endosurgery Group (IPEG).
• Trained in robotic surgery, pediatric endoscopy, and thoracoscopy.
• Works at Memorial Göztepe, a modern facility featuring child-friendly care areas.

Dr. Mehmet Karaca is a professor of gynecology and obstetrics at Medical Park Antalya. He holds a minor degree in gynecological oncology surgery from the Ministry of Health. Dr. Karaca treats complex female cancers, high-risk pregnancies, and infertility issues. He performs surgical procedures at the largest private hospital in Turkey's Mediterranean region.

• Specializes in laparoscopic surgery for uterine fibroids, ovarian cysts, and endometriosis.
• Performs radical cancer surgeries including the Wertheim procedure and cytoreductive debulking.
• Expert in in vitro fertilization and urogynecology treatments.
• Former clinical chief at Antalya Training and Research Hospital.

Dr. Feryal Gun Soysal is a pediatric surgeon at Memorial Ataşehir Hospital in Istanbul. She specializes in pediatric urology, robotic surgery, and minimally invasive procedures. Dr. Soysal served as Head of Pediatric Surgery at Istanbul University. She is also a widely published researcher with over 100 peer-reviewed papers.

• Former Head of the Pediatric Urology Division at Istanbul University.
• Holds certifications in pediatric endoscopy, laparoscopy, and thoracoscopy.
• Delivered nearly 500 scientific presentations and posters at medical meetings.
• Maintains active membership in the European Paediatric Surgeon’s Association.

Dr. Murat B., Plastik, Rekonstrüktif ve Estetik Cerrahi uzmanıdır. İstanbul’daki Grand Clinic’te görev yapar. Türk Plastik Rekonstrüktif ve Estetik Cerrahi Derneği Yeterlik Belgesi’ne sahiptir. Zonguldak Atatürk Devlet Hastanesi Yanık Ünitesi Sorumlusu olarak görev yapmıştır.

Klinik ilgi alanları: burun estetiği (rinoplasti), liposuction ve vücut şekillendirme, meme estetiği (büyütme, küçültme), yüz estetiği, göz kapağı estetiği ve çene estetiği.

Dr. Ezgi Yuceer Cetiner is the Chief Physician at Bahçeşehir University Dental Hospital in Istanbul. She is an oral and maxillofacial surgeon specializing in reconstructive surgery and bone regeneration. Dr. Yuceer Cetiner performs complex procedures like orthognathic surgery and All-on-4 dental implants. She also holds the role of Assistant Professor at Bahçeşehir University.

• Member of both national and international oral and maxillofacial surgical associations.
• Expertise includes treating jaw pathologies, TMJ diseases, and mandibulary osteotomy.
• Published researcher with several articles in peer-reviewed medical journals.
• Practices at a university-affiliated hospital featuring 183 dental units and sedative units.

Dr. Ali Sinanoglu is the Chief Dentist at Hospitadent Dental Group Alanya Clinic. He has completed over 100,000 oral examinations and 14,000 aesthetic dental treatments. Dr. Sinanoglu graduated from Istanbul University Faculty of Dentistry. He holds specialized certifications in anterior restorations and the All-on-4 implant concept.

• Performed over 400 dental implant procedures and 1,500 bleaching cases.
• Holds a certificate in Aesthetic Excellence for dental art and science.
• Expertise includes Lumineers methods and antibiotic use in dentistry.
• Practices at a clinic holding ISO and TEMOS international quality accreditations.

Dr. Mehmet Sarier is a urologist and andrologist at Medical Park Antalya Hospital. He serves as a faculty member at Istinye University Faculty of Medicine. Dr. Sarier specializes in male infertility, sexual health, and robotic surgery. He holds the rank of associate professor since 2020.

• Performs robotic da Vinci prostatectomy and nephrectomy.
• Uses stem cell therapy to treat erectile dysfunction and male infertility.
• Treats complex conditions like varicocele, azoospermia, and Peyronie's disease.
• Practices at the largest private hospital in the Mediterranean region.

Dr. Cagdas Gokhun Ozmerdiven is a urologist at Valued Med Hub Hospitals in Istanbul. He specializes in male infertility, prostate laser surgery, and kidney stone removal. Dr. Ozmerdiven uses holmium laser lithotripsy for incisionless stone surgeries. He earned his medical degree from Trakya University and trained at Uludag University.

• Specializes in varicocele treatment, in vitro fertilization, and azoospermia.
• Performs bloodless kidney stone procedures using laser techniques.
• Works at a clinic holding a Turkish Government Health Tourism Authorization Certificate.
• Treats patients at a facility accredited by the Turkish Medical Association.

Dr. Enes Duman is an Associate Professor of Interventional Radiology at Medical Park Antalya Hospital. He specializes in neurovascular procedures and endovascular treatments for cerebral aneurysms. Dr. Duman holds training from Ankara University and Baskent University. He previously served as a lecturer and researcher in Interventional Radiology.

• Performs endovascular treatment of wide-necked saccular aneurysms using flow-diverter stents.
• Researches laser wavelength effects on pain during saphenous vein ablation.
• Treats complex conditions at the largest private hospital in the Mediterranean region.
• Expert in minimally invasive diagnostics including angiography, CT, and MRI.

Dr. Omur Gokmen Sevindik is a hematologist at Istanbul Florence Nightingale Hospital. He completed a fellowship at the Mayo Clinic, a top-ranked medical center in the US. Dr. Sevindik specializes in treating blood cancers like leukemia and lymphoma. He works at a JCI-accredited facility that treats 300,000 patients annually.

• Performs allogeneic and haploidentical stem cell transplantations.
• Authored 18 articles in international peer-reviewed journals.
• Presented research findings at over 25 international scientific conferences.
• Treats complex conditions including myeloma, aplastic anemia, and thrombocytopenia.