Dr. Ibrahim Ziyal is a neurosurgeon at Memorial Göztepe Hospital in Istanbul (2025–present). He was Professor and Head of Neurosurgery at Marmara University (2012–2025). Earlier, he held faculty roles at Hacettepe University (2001–2012). He was the Founding Head of Neurosurgery at Abant İzzet Baysal University, Düzce (1999–2001). He also worked as a clinical researcher in brain tumors at George Washington University (1996–1998). He then focused on cerebrovascular diseases at the São Paulo Institute of Neurological Sciences (1998–1999).
Expertise: skull base tumors, pituitary surgery, and aneurysm/AVM/cavernoma surgery. Neurosurgery training: Şişli Etfal Hospital. MD: Trakya University. Memberships: Turkish Neurosurgical Society, Neuro-Oncology Association, AANS, CNS, WFNS, EANS.
Dr. Ali Osman Mucuoglu is a neurosurgeon. He completed his neurosurgery residency at Dokuz Eylül University from 2013 to 2019 after graduating from Eskişehir Osmangazi University in 2012 (2005–2012). He worked at Dokuz Eylül University and Muş State Hospital from 2019 to 2021. He has practiced at Atlas University Hospital since 2021.
He has five publications. These include a case report in the International Journal of Surgery Case Reports that has been cited seven times. He also reported on 3D printer‑assisted transsphenoidal hypophysectomy and on emergency minimally invasive intracerebral hemorrhage (ICH) surgery. He delivered an oral presentation at the 33rd Turkish Neurosurgical Society Congress in 2019.
He is a member of the Turkish Neurosurgical Society, the European Association of Neurosurgical Societies, and the Istanbul Chamber of Medicine. His advanced training includes spinal surgery courses in 2016 and 2017, the European Training Course on Head Injury and Functional Neurosurgery in 2017, and Surgical Neuroanatomy in 2017. He also holds an animal experimentation certificate from 2016.
Dr. Mustafa Aydın is an Internal Medicine specialist. He graduated from Gazi University Faculty of Medicine in 2009. He provides evidence-based care for adults, including diagnosis and treatment. He communicates in English.
His clinical focus includes chronic disease management, such as diabetes, hypertension, high cholesterol, and thyroid disorders. He treats gastrointestinal problems, including reflux, gastritis, ulcers, and liver diseases, and respiratory diseases like asthma and COPD. He manages infectious diseases. He provides preventive care with routine screenings, risk assessments, and personalized health plans.
Spinal neurosurgeon
Dr. Halil Can is a Professor of Neurosurgery (2025; Associate Professor 2020). He completed neurosurgical training at Istanbul University–Istanbul Faculty of Medicine in 2007. His clinical focus includes endoscopic and microsurgical spine surgery for fractures, tumors, and degenerative disease; advanced pain procedures; endoscopic skull base and pituitary surgery; and neurovascular, neuro-oncologic, and peripheral nerve surgery.
He has 21 international peer-reviewed papers (SCI/SSCI). Topics include cadaveric morphometry of Kambin’s triangle and the transforaminal triangular working zone, lumbar arterial and anterior approach anatomy, and an in vitro test of a new lumbar fixation device.
His clinical studies include a single-team series of 81 posterior circulation aneurysms, with 13 flow-diversion cases. He also reported five spinal cavernous malformation cases. He conducted Phase I safety and feasibility stem-cell trials in pediatric hypoxic-ischemic encephalopathy and in chronic complete spinal cord injury.
Specializations
Micro Surgical Lumbar and Cervical Disc Herniation Treatment
Scoliosis Surgery and Treatment
Brain and Spine Tumors
Spine Fracture Treatment
Spinal Canal Narrowing Surgery
Lumbar Slipping Surgery and Treatment
Specializations
Endoscopic Closed Lumbar Disc Herniation Surgery
Surgical Treatment for Spine Fractures
Minimally Invasive Surgery for Cervical and Lumbar Herniations
Dr. Cevat Azeroglu is a radiologist. He graduated from the Tabriz University Faculty of Medicine in 1987. He completed his radiology specialization at Ondokuz Mayıs University in 2011. Born in 1959, he provides advanced imaging to support accurate, timely decisions for many specialties.
His expertise includes conventional radiology with X-rays for musculoskeletal and chest disease. He performs ultrasound of the abdomen, thyroid, vessels, and soft tissues. He interprets CT and MRI for neurological, cardiovascular, and oncologic conditions. He practices interventional radiology with image-guided, minimally invasive procedures. He also focuses on oncologic imaging for staging and follow-up. He is known for diagnostic precision, use of modern imaging tools, and strong teamwork.
Dr Erdem Gelegen is an ophthalmologist with over 20 years of experience in cataract, refractive, retinal, glaucoma, and corneal/anterior segment care. He performs phacoemulsification with premium intraocular lenses. He provides laser vision correction for myopia, hyperopia, and astigmatism. He treats diabetic retinopathy, age-related macular degeneration, retinal detachment, keratoconus, and anterior segment disorders, including corneal transplants.
He graduated from Istanbul University Cerrahpaşa Faculty of Medicine in 1999. He completed his ophthalmology residency at Okmeydanı Training and Research Hospital in 2004. He is known for precise microsurgery and the use of advanced ophthalmic technologies.
Dr. Ozlem Yogurtcu is a general surgeon with extensive experience. She graduated from Dokuz Eylul University Faculty of Medicine. She completed her general surgery residency at Haseki Training and Research Hospital, 1st Surgical Clinic. She is fluent in English.
Her practice includes gastrointestinal surgery (gallbladder disease, hernias, appendicitis, other gastrointestinal conditions). It also includes endocrine surgery (thyroid, parathyroid, adrenal) and breast surgery (benign and malignant conditions). She treats emergency and trauma cases. She performs minimally invasive laparoscopic procedures.
She is known for precise surgery and a patient-centered approach.
Dr. Derya Zengin Metli is a physician specialized in physical therapy and rehabilitation. She graduated from Akdeniz University Faculty of Medicine. Her practice includes physical therapy and physiotherapy services. She also consults in English.
Her clinical scope includes musculoskeletal rehabilitation for back, neck, and joint pain, and herniated discs. She provides neurological rehabilitation for stroke and multiple sclerosis. She also offers post-surgical rehabilitation after orthopedic and neurosurgical procedures, sports injury prevention and treatment, and chronic pain management for fibromyalgia and arthritis.
Dyt. Yaren Nur Güngör is a dietitian. She graduated from the Faculty of Nutrition and Dietetics. She provides evidence-based, personalized nutrition counseling in English. She designs tailored programs for health promotion, disease management, and weight control.
Her clinical focus includes diet plans for diabetes, heart disease, thyroid disorders, and other metabolic issues. She also guides weight loss and gain and improves body composition. She offers sports nutrition and nutrition care for children and teens. She provides preventive nutrition with lifestyle counseling. Her approach is patient-centered and motivating.
Dr. Mustafa Gurelik is a neurosurgeon who graduated from Cumhuriyet University Faculty of Medicine in 1989. He completed his specialization in 1997. He has worked at Cumhuriyet University, Sivas Anadolu Hospital, and Malatya Gözde Hospital.
Dr. Gurelik treats brain and spinal cord tumors, brain hemorrhages, spine diseases, and traumatic injuries to the head and spine. He is skilled in pituitary surgery, shunt and endoscopic procedures for hydrocephalus, and treatments for lumbar and neck hernias. He also manages cerebrovascular aneurysms and nerve compression syndromes such as carpal tunnel. Dr. Gurelik is known for his high success rates and dedication to advanced neurosurgical care.
Dr. Hasan Mirzai is a professor doctor with expertise in brain and nerve surgery, neurosurgery, spinal surgery, brain tumor surgery, and pediatric brain surgery. He has extensive experience in multiple hospitals and is a member of the World Spine Society, Turkish Medical Association, and Turkish Neurosurgery Association.
Dr. Mehmet Ozek is a leading pediatric neurosurgeon with more than 35 years of experience. He focuses on brain and spinal surgery for children. He is well known for treating complex cranial and spinal malformations, brain tumors, and epilepsy in young patients.
Dr. Ozek has performed over 10,000 pediatric neurosurgical procedures. His work has achieved high success rates recognized worldwide. He has published more than 100 articles in peer-reviewed journals and written several book chapters. His research has helped advance pediatric neurosurgery on a global scale.
He is an active member of the International Society for Pediatric Neurosurgery. Dr. Ozek has received several international awards for his work. He holds leadership roles in global pediatric neurosurgical groups and regularly attends international scientific meetings.
Dr. Abdulkerim Gokoglu is a Neurosurgery Specialist with a PhD in Clinical Anatomy. He is known for his skills in treating brain tumors, spinal diseases, head trauma, congenital nervous system disorders, and spine deformities.
Dr. Gokoglu has broad experience managing stroke, paralysis, aneurysms, hemorrhage, tumors, hernias, and traumatic injuries. He has worked on advanced neurosurgical procedures. He also serves as a postdoctoral research assistant at Brigham and Women’s Hospital, showing his strong focus on both patient care and research.