| Turkey | Austria | Spain | |
| Gamma Knife | from $6,300 | from $32,000 | from $18,000 |
| Brain tumor surgery | from $7,030 | from $60,000 | from $11,725 |
| Brain tumor removal | from $19,710 | from $60,000 | from $52,536 |
Dr. Bartolome Oliver is a pioneer in minimally invasive neurosurgery, performing over 200 surgeries annually at Centro Médico Teknon.
Dr. Conesa has performed 1,100+ neurosurgical procedures with a focus on brain tumors in highly functional areas – a subspecialty requiring precision.
Over 46 years of experience specializing in complex reconstructive surgery – a pioneer in using 3D simulation for precise surgical planning.
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.