Best Doctors in the World — Page 16

Dr. Bilal Ergul is a gastroenterologist at Lokman Hekim University Ankara Hospital. He is known for performing Peroral Endoscopic Myotomy (POEM) surgery. This procedure treats complex swallowing disorders without external incisions. Dr. Ergul has authored around 100 academic publications on various gastrointestinal topics.

• Specializes in laparoscopic surgery for GERD and gastric polyps removal.
• Treats chronic conditions including Crohn’s disease, ulcerative colitis, and cirrhosis.
• Performs esophagectomy and small intestine resections for complex cases.
• Works at an ISO-certified university hospital that treats 20,000+ patients annually.

Dr. Emine Yildirim is an associate professor of general surgery at Atlas University Hospital, Istanbul. She specializes in surgical oncology with a focus on breast cancer treatment and reconstruction. Dr. Yildirim has published over 15 scientific articles in peer-reviewed journals like Academic Radiology. She holds multiple international certificates in breast cancer surgery and nipple-sparing techniques.

• Performs breast-conserving surgery, free flap reconstruction, and implant-based breast augmentation.
• Treats complex oncological conditions including thyroid, bladder, and colorectal cancers.
• Completed medical residency at Istanbul Haseki Health Application and Research Center.
• Works at AACI-accredited Atlas University Hospital, which treats 565,000 patients annually.

Dr. Semih Ayan is a urologist at VM Medical Park Florya Hospital in Istanbul. He is certified by the European Board of Urology. Dr. Ayan completed a research fellowship at Harvard Medical School. He also completed a clinical fellowship in robotic surgery at the University of Chicago.

• Specializes in urologic oncology and pediatric urology.
• Performs a high volume of endoscopic and percutaneous surgeries for urinary stones.
• Member of the American Urological Association and the European Association of Urology.
• Treats prostate, kidney, and bladder cancer using robotic surgical techniques.

Dr. Kurshad Zengin is a urological surgeon at Lokman Hekim Akay Hospital in Ankara. He holds four patents for medical innovations and has completed 14 scientific projects. Dr. Zengin specializes in surgical treatments for kidney stones, prostate disorders, and male infertility. He also performs stem cell therapy for erectile dysfunction.

• Published 18 articles in international refereed journals.
• Performs robotic nephrectomy and Holmium Laser Enucleation of the Prostate.
• Expert in microsurgical varicocele intervention and flexible ureteroscopy.
• Treats complex conditions like urethral stricture and bladder leukoplakia.

Dr. Senol Erguney is a senior urologist at Büyük Anadolu Hospital in Istanbul. He specializes in endoscopic stone treatments and transurethral prostate surgeries. Dr. Erguney previously served as the Kocaeli Provincial Health Director. He also leads treatments for male infertility and sexual dysfunction.

• Performs endoscopic prostate and bladder surgery using the TUR method.
• Treats kidney stones through endoscopic crushing techniques.
• Expert in male infertility treatments, including microsurgical varicocele repair.
• Treats pediatric urological conditions such as nocturnal incontinence and undescended testicles.

Dr. Izzet Ilker Aydogan is an oral and maxillofacial surgery specialist at Inci Dis Clinic. He completed his surgical specialization at Selçuk University in 2023. Dr. Aydogan performs complex jaw surgeries and dental implant procedures. He works at a JCI-accredited facility in Istanbul with an in-house dental laboratory.

• Specializes in sinus lifting, bone grafting, and dental bone regeneration.
• Treats temporomandibular joint (TMJ) diseases and performs dental cyst removal.
• Expertise includes wisdom tooth removal and surgical tooth extractions.
• Provides care at a clinic holding TEMOS and ISO 9001 certifications.

Dr. Ahmet Kirkinci is an obstetrician-gynecologist at Optimed International Hospital. He specializes in laparoscopic and hysteroscopic surgeries for uterine conditions. Dr. Kirkinci performs prenatal care, childbirth, and incontinence correction. He is a published researcher in the Taiwan Journal of Obstetrics and Gynecology.

• Performs robotic-assisted and laparoscopic hysterectomies and myomectomies.
• Treats complex conditions like PCOS, endometriosis, and cervical dysplasia.
• Expertise in genital aesthetics and hormone replacement therapy for menopause.
• Practices at AACI-accredited Optimed International, which serves 200,000+ patients annually.

Dr. Nejat Nizam is a periodontist and oral surgeon at Nifa Dent International. He developed the Nizam Punch connective tissue graft tool produced in Germany. Dr. Nizam also invented two implant systems currently used in multiple countries. He is a full professor at Ege University.

• Published over 30 studies in prestigious scientific journals.
• Specializes in complex gum surgery and dental implantology.
• Performs same-day All-on-4 and All-on-6 dental implant procedures.
• Works at a clinic holding the International Health Tourism Authorization Certificate.

Dr. Samet Yardimci is a specialist in gastroenterology and general surgery at VM Medical Park Pendik Hospital. He holds the Best Young Researcher Award from the Congress of Transplantation. Dr. Yardimci completed a fellowship in gastroenterology surgery at a top Turkish training center. He treats complex conditions like Crohn's disease, ulcerative colitis, and gastric ulcers.

• Performs obesity surgery and laparoscopic procedures for the digestive system.
• Member of the International Federation for the Surgery of Obesity and Metabolic Disorders.
• Completed an international observer program at Memorial Hermann Hospital in Texas.
• Holds the Turkish Surgery Competency Certificate for surgical excellence.

Dr. Savas Ceylan has performed over 5,600 endoscopic neurosurgical procedures at VM Medical Park Pendik. He specializes in the treatment of pituitary adenomas and complex skull base tumors. Dr. Ceylan is a member of the American Association of Neurological Surgeons. He practices at a JCI-accredited hospital in Istanbul.

• Completed over 4,300 surgeries for pituitary adenomas.
• Expert in endoscopic transsphenoidal surgery for sellar region pathologies.
• Performed 150+ craniopharyngioma resections and 120+ chordoma surgeries.
• Previously served as Head of the Neurosurgery Department at Kocaeli University.

Dr. Alper Agca has performed over 15,000 eye surgeries at Dunyagoz Eye Hospital Istanbul Atakoy. He is an associate professor of ophthalmology specializing in ReLEx SMILE and LASIK procedures. His work includes cataract surgery with multifocal lens implants. Dr. Agca works at a JCI-accredited facility meeting international safety standards.

• Awarded second place for best poster at the ESCRS Congress.
• Served as a board member of the Society of Cataract and Refractive Surgery.
• Uses ReLEx SMILE and LASEK techniques for vision correction.
• Maintains membership in the Turkish Ophthalmological Association.

Dr. Hanifi Onalan is an oncology and general surgeon at Atlas University Hospital in Istanbul. He specializes in weight loss procedures and digestive system surgeries. Dr. Onalan has performed gastric sleeve and balloon procedures for over 15 years at Atlas. He previously served as a surgeon at Taksim Education and Research Hospital.

• Expertise includes gallbladder, thyroid, and hernia surgeries.
• Certified in videoendoscopy from Bakirkoy Dr. Sadi Konuk Education and Research Hospital.
• Performs complex procedures like colectomy, liver resection, and pancreatic surgery.
• Treats patients at an AACI-accredited facility following international safety standards.

Dr. Sefik Igdem is a radiation oncologist at Gayrettepe Florence Nightingale Hospital in Istanbul. He specializes in treating head, neck, and prostate cancers. He currently serves as a Professor at Demiroğlu Bilim University. Dr. Igdem uses Truebeam STx and Halcyon systems for accurate radiotherapy.

• Specializes in conformal treatments for complex tumor cases.
• Treats various conditions including lung, breast, and brain tumors.
• Practices at a JCI-accredited hospital that serves 200,000 patients annually.
• Completed his radiation oncology training at the Istanbul University Cerrahpaşa Faculty.

Dr. Yakup Erdogan is a child and adolescent psychiatrist at NPISTANBUL Brain Hospital. He specializes in treating autism spectrum disorder, ADHD, and pediatric mood disorders. Dr. Erdogan completed a clinical observership at the University of Leicester in England. He publishes research in both national and international medical journals.

• Treats complex conditions including bipolar disorder, OCD, and psychotic disorders.
• Expert in substance abuse treatment for children and teenagers.
• Fluent in English and serves international patients in Istanbul.
• Works at Turkey’s first JCI-certified private neuropsychiatric hospital.

Op. Dr. Alasgar Asgarli, MD, is an ophthalmologist. He focuses on cataract and refractive surgery, glaucoma diagnosis and treatment, medical retinal diseases, and pediatric eye care. He performs oculoplastic eyelid surgery and ocular trauma surgery. His skills include intravitreal injections, pterygium excision, and neuro-ophthalmology. He also has experience with advanced intraocular lens fixation, including scleral fixation and the Yamane technique.

Achievements and accreditations: Active member of the Turkish Ophthalmological Association (TOD). Presenter at the TOD 59th National Congress. Attended the TOD 58th National Congress. Completed the TOD Fundus Fluorescein Angiography Course (2024). Published “Comparison of the Effects of Hydrophobic and Hydrophilic Acrylic Intraocular Lenses on Lenticular Astigmatism” (DOI: 10.37844/TJ-CEO.2025.20.37). Holds certification in Botox and dermal fillers.

Dr. Esra Nur Tola is a fertility specialist and gynecologist at Medipol University Pendik Hospital. She has authored over 85 scientific publications in reproductive medicine and obstetrics. Dr. Tola focuses on polycystic ovary syndrome (PCOS) and in vitro fertilization (IVF) success factors. She treats complex conditions like uterine prolapse, endometriosis, and cervical dysplasia.

• Performs laparoscopic hysterectomy, myomectomy, and ovarian cystectomy.
• Provides PRP ovarian rejuvenation and hysteroscopic polypectomy.
• Developed research on oxidative stress and its impact on oocyte quality.
• Works at a hospital with 21 dedicated newborn intensive care units.

Dr. Aziz Kemal Emek is a general surgeon and surgical oncologist at Medical Park Antalya Hospital Complex. He specializes in gastrointestinal surgery, focusing on liver and biliary tract tumors. Dr. Emek holds a professorship from Akdeniz University Faculty of Medicine. He performs Da Vinci robotic procedures and weight loss surgeries.

• Member of the National Surgical Association and the Turkish Medical Association.
• Treats complex conditions like Crohn's disease, liver cirrhosis, and ulcerative colitis.
• Performs stomach resections, esophagectomies, and robotic-assisted surgeries.
• Works at a clinic authorized for international health tourism by the Turkish government.

Dr. Bugra Bilge Keseroglu is a urological surgeon at İstinye University Liv Hospital Topkapı. He specializes in robotic and laparoscopic procedures for prostate and bladder cancer. Dr. Keseroglu performs Retzius-sparing radical prostatectomy to improve patient recovery. He also focuses on female incontinence surgery and complex stone treatments like HOLEP.

• Performs robotic sacrocolpopexy and radical cystectomy for cancer and pelvic organ prolapse.
• Treats urological conditions using laparoscopic nephrectomy and partial nephrectomy techniques.
• Manages all endourological stone surgeries and endoscopic procedures.
• Works at İstinye University Liv Hospital, a 300-bed facility with 33 medical departments.

Dr. Abdullah Sakin is a medical oncologist at Medipol Bahçelievler University Hospital in Istanbul. He specializes in treating complex cancers, including lung, breast, and gastrointestinal malignancies. Dr. Sakin previously served as the Head of the Medical Oncology Department at Yüzüncü Yıl University. He also held a leadership role at Prof. Dr. Cemil Taşçıoğlu City Hospital.

• Provides immunotherapy, biological therapy, and hormone treatments for various cancer types.
• Treats rare and difficult conditions like thymoma, chordoma, and Ewing's sarcoma.
• Performs PET-CT scans and comprehensive oncological check-ups for men and women.
• Uses JCI-accredited facilities with systems like TrueBeam STx and Halcyon for treatment.

Dr. Osman Civil is a general surgeon at Medipol Bahçelievler University Hospital in Istanbul. He specializes in gastrointestinal, colorectal, and breast cancer surgery. Dr. Civil completed his surgical training at the Kartal Dr. Lütfi Kirdar Training and Research Hospital. He works at a JCI-accredited facility that treats 600,000 patients every year.

• Performs complex procedures including Whipple surgery, liver resections, and colectomies.
• Treats various conditions such as pancreatic cysts, hemorrhoids, and inguinal hernias.
• Maintains professional memberships in the Turkish Colon and Rectum Surgery Society.
• Member of the Turkish Surgical Association and the Malatya Gastrointestinal Surgery Society.