| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.7 / 5 (438 reviews) | Barcelona, Spain | — | 23,000+ treatments | Breast cancer surgery, CyberKnife for brain tumor | — | — | Joint Commission International , European Foundation for Quality Management | |
| #2 | 2.5 / 5 (0 reviews) | Madrid, Spain | 36+ years | Bronchoscopy + biopsy | — | — | European Foundation for Quality Management, Certification according to DIN EN ISO 9001 by TÜV NORD CERT | ||
| #3 | 5.0 / 5 (6 reviews) | Pamplona, Spain | — | — | Allogenic bone marrow transplantation from an unrelated donor, Craniotomy | — | — | Joint Commission International , European Society for Medical Oncology | |
| #4 | 4.6 / 5 (5 reviews) | Barcelona, Spain | — | — | Bronchoscopy + biopsy | — | — | European Foundation for Quality Management, Certification according to DIN EN ISO 9001 by TÜV NORD CERT |