| Turkey | Austria | Spain | |
| Tomotherapy | from $12,000 | from $30,000 | from $35,000 |
| Radiation therapy for brain tumor | from $2,000 | from $15,000 | from $20,000 |
| Proton-beam therapy | from $70,000 | from $80,000 | from $25,887 |
| Gamma Knife for brain tumor | from $4,750 | from $25,000 | from $20,000 |
| Gamma Knife | from $6,300 | from $32,000 | from $18,000 |
50 years of experience pioneering minimally invasive neurosurgery – Dr. Oliver directs the Brain Tumor Center at Centro Médico Teknon, with 200+ complex brain surgeries annually.
Dr. Conesa leads the Institute of Neurosurgery and Neurobiology at Centro Médico Teknon, directing complex brain tumor operations.
46 years of experience leading plastic surgery innovation at Centro Médico Teknon – Dr. Herrero Jover specializes in facial and reconstructive procedures.
Dr. Nnamdi Elenwoke is a neurosurgeon at Neuroinstitut – Centro Médico Teknon (Barcelona), a leading center in Europe. He specializes in minimally invasive and functional neurosurgery. He has focused expertise in Arnold–Chiari malformation and craniovertebral junction disorders. His practice uses advanced microsurgical techniques, endoscopic skull base surgery, and robotic-assisted neurosurgery.
Education and training: MD (2007). Neurosurgery residency (MIR) at Hospital Miguel Servet, Zaragoza. Advanced endoscopic skull base training at Emory University, Atlanta. Clinical training at the National Hospital for Neurology and Neurosurgery, London. He has over 15 years of experience in complex brain and spine surgery.
Key competencies: posterior fossa decompression; brain and spinal tumors; minimally invasive spine surgery; hydrocephalus and syringomyelia. He uses advanced imaging and neuronavigation to improve safety and protect function. Accreditations: Spanish Society of Neurosurgery, EANS, and the Official College of Physicians of Barcelona. He has published scientific work and is active in international congresses.