Best Gamma Knife Doctors Worldwide — TOP 56

Dr. Ahmet Hilmi Kaya is a professor of neurosurgery at Anadolu Medical Center in Istanbul. He specializes in functional neurosurgery and deep brain stimulation (DBS) for movement disorders. Dr. Kaya previously led a Parkinson’s disease research project at Ondokuz Mayıs University. He earned the Aysima Altınok Thesis Award from the Turkish Neurosurgical Society.

• Performs complex brain tumor removals and skull base surgeries.
• Treats spinal conditions including tumors, stenosis, and herniated discs.
• Completed specialized observerships in cellular neuroscience at Maastricht University.
• Works at Anadolu Medical Center, an affiliate of Johns Hopkins Medicine.

Dr. Mustafa Sakar is a neurosurgeon at Memorial Göztepe Hospital in Istanbul. He specializes in pediatric neurosurgery and tumor surgery. Dr. Sakar completed a corner tumor surgery observership at the University of Tübingen, Germany. He also trained in fetal spina bifida surgery at HCor in São Paulo, Brazil.

• Member of the International Society for Pediatric Neurosurgery (ISPN).
• Member of the European Association of Neurosurgical Societies (EANS).
• Active in the Turkish Neurosurgical Society Pediatric Neurosurgery group.
• Practices at Memorial Göztepe, which features AI-supported 3 Tesla MRI technology.

Specialized in aesthetic medicine – Dr. Cheawchanwej brings precision to delicate procedures with international training credentials.

• Diploma in Aesthetic Medicine from American Academy
• Trained in Restylane techniques in Sweden
• Attended Asia Pacific Rhinoplasty Forum
• Certified in minimal invasive plastic surgery techniques
• Member of international anti-aging medicine societies

Associate Professor Mehmet Tonge specializes in Gamma Knife radiosurgery at Medipol University's PARMER Center, with extensive research and clinical focus on stereotactic techniques.

• 32 publications and 12 book chapters on stereotactic neurosurgery
• Member of Leksell Gamma Knife Society and International Stereotactic Radiosurgery Society
• Trained in Zurich University Hospital's microneurosurgery program
• Board member of Turkish Stereotactic & Functional Neurosurgery Society

The doctor is a member of the Turkish Neurosurgery Association, the Turkish Spine Association, and AOSpine. With an academic background from Marmara University in Turkey and further training at Yale School of Medicine in the USA, the doctor is well-versed in neurosurgery and spine-related medical practices.

Head of Functional Neurosurgery and Radiosurgery at Ruber International Hospital since 2005 – Dr. Martínez Álvarez specializes in Gamma Knife procedures with 180+ publications.

• 42 years of experience in neurosurgery and radiosurgery
• Member of the International Society of Stereotactic Radiosurgery Executive Council
• Honorary Professor at Autonomous University of Madrid
• Performed international internships at leading neurosurgery centers
• Published 60 articles in high-impact international journals

Prof. Dr. Hasan Ozgur Ozdemir specializes in Gamma Knife procedures with extensive experience in neurosurgery, including vascular brain operations and brain tumors.

• Over 24 years of neurosurgical experience
• Expert in minimally invasive and endoscopic brain surgeries
• Awarded 1st place in the Turkish Neurosurgical Society Proficiency Exam
• Member of the Turkish Neurosurgical Society and Turkish Medical Association

Associate Professor at Florence Nightingale Hospitals with a fellowship in Stereotactic and Functional Neurosurgery from Hannover Medical School.

• Specializes in Gamma Knife procedures
• Extensive training in microsurgery and peripheral nerve reconstruction
• Member of prestigious neurosurgery departments in Turkey and Germany

Professor Sun Chen Yang is a leading physician-scientist specializing in integrative traditional Chinese and Western medicine at Peking University.

• Director of the Institute of Integrative Traditional Chinese and Western Medicine
• Author of over 100 articles in SCI and other journals
• Executive Director of the China Society of Traditional Chinese Medicine
• Consulting expert for Beijing's Central Commission for Health and Talents

1,100+ neuro- and radiosurgeries performed – Prof. Mortini is a leading expert in minimally invasive brain and spine treatments at San Raffaele Scientific Institute.

• specializing in Gamma Knife and neuronavigation
• Director of the Experimental Neurosurgery Unit at San Raffaele
• Visiting Professor at George Washington University
• Holds a patent for tissue regeneration technology
• Pioneered fetal spina bifida surgery at 22 weeks gestation

Dr. Zvi Cohen is the Director of the Neurosurgery Department at Sheba Medical Center. He was recently recognized in Forbes Israel’s Best Doctors list for 2025. Dr. Cohen specializes in treating complex brain, pituitary, and spinal cord tumors. He founded the brain tumor tissue bank at Sheba to support oncological research. Dr. Cohen is board-certified in neurosurgery and leads clinical trials for malignant brain tumors.

• Completed fellowships in neurosurgical oncology at MD Anderson and neuroradiology at Beth Israel.
• Expert in intraoperative MRI, stereotactic biopsies, and image-guided resections.
• Performs radiosurgery and minimally invasive microsurgery for CNS tumors.
• Member of the Society for Neuro-Oncology and the Israeli Association of Neurological Surgeons.

Dr. Sinan Karaaslan is a medical oncologist at Anadolu Medical Center in Istanbul. He specializes in treating breast, colorectal, and urogenital system cancers. Dr. Karaaslan brings clinical expertise from major institutions, including Medical Park and Gülhane Military Medical Academy. He works at a hospital affiliated with the Johns Hopkins Hospital.

• Holds personal certification from the European Society for Medical Oncology.
• Treats complex conditions, including stage 4 colon and lung cancers.
• Member of the Turkish Medical Oncology and Turkish Lung Cancer societies.
• Performs systemic therapies such as immunotherapy, targeted therapy, and chemotherapy.

Dr. Zuleyha Akgun is a radiation oncology specialist at Memorial Şişli Hospital in Istanbul. She focalizes on cancer treatment using targeted radiation therapy. Dr. Akgun has practiced at some of Turkey’s most active medical institutions since 2003. She serves patients at a JCI-accredited facility recognized for its high medical safety standards.

• Practices at Memorial Şişli Hospital, the first Turkish hospital to earn JCI accreditation.
• Completed a research residency at Marmara University Faculty of Medicine.
• Treats patients in a specialized oncology center that attracts international cases from 160+ countries.
• Previously served as a specialist at Erzurum Regional Training and Research Hospital.

Dr. Gorkem Turkkan is a radiation oncologist at Hisar Hospital Intercontinental in Istanbul. He has successfully completed over 2,500 radiotherapy sessions using MR-Linac technology. Dr. Turkkan focuses on MRI-guided radiotherapy and stereotactic treatments for various cancers. He conducted clinical research on proton therapy at the MAASTRO Clinic in the Netherlands.

• Specializes in prostate, breast, lung, and head and neck cancer treatments.
• Uses VMAT and IMRT techniques to target tumors with precision.
• Maintains membership in the European Society of Radiotherapy and Oncology.
• Works at a JCI-accredited hospital serving 500,000+ patients annually.

Professor Akcakaya specializes in Gamma Knife procedures with a fellowship in Stereotactic and Functional Neurosurgery from Hannover Medical School.

• Over 20 years of neurosurgery experience
• Expert in minimally invasive brain surgery techniques
• Member of European Association of Neurosurgical Societies
• Second prize winner for best oral presentation at Nervous System Surgery Society Congress

Prof. Turker Kilic is the first Turkish doctor trained in Gamma Knife radiosurgery at Sweden's prestigious Karolinska Institute.

• 35 years of neurosurgery experience with a focus on radiosurgery
• Member of the International Gamma-Knife Society since 1995
• Former director of Marmara University's Gamma-Knife Unit
• Trained at Harvard Medical School's Dana-Farber Cancer Institute

Dr. Baran Yil brings specialized training from Yale School of Medicine's cerebrovascular research program to Gamma Knife procedures.

• Board-certified neurosurgeon with extensive Gamma Knife experience
• Recipient of the Prof. Dr. Hamit Ziya Gökalp Young Neurosurgeon Encouragement Prize
• Active member of Turkish Neurosurgery and Spine Associations
• Trained under Prof. Dr. Türker Kılıç at Marmara University

Dr. Baris Topcular specializes in neurology, with a decade of experience treating complex neurological conditions. Currently works at Istanbul Florence Nightingale Hospital.

• Graduated from Istanbul University Cerrahpaşa Faculty of Medicine
• Fellowship at the University of Basel, Switzerland
• Member of the Neurology Clinic, focusing on neurological diseases
• Worked in prestigious hospitals including Şişli Florence Nightingale Hospital

Associate Professor in Neurosurgery with extensive academic and clinical experience, specializing in Gamma Knife procedures at Istanbul Florence Nightingale Hospital.

• Specialized in Neurosurgery at S.B. Göztepe Training and Research Hospital
• Participated in the European Association of Neurosurgical Societies (EANS) accreditation process
• Lecturer at multiple universities, contributing to neurosurgery education
• Proficient in advanced neurosurgical techniques, including Gamma Knife