| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.7 / 5 (441 reviews) | Barcelona, Spain | 50+ years280+ treatments | Chemotherapy for prostate cancer, Removal of testicle tumor | — | — | Joint Commission International , European Foundation for Quality Management | ||
| #2 | 4.5 / 5 (0 reviews) | Marbella, Spain | — | — | Consultation with a neurosurgeon | — | — | ISO 9001:2015 Quality management systems | |
| #3 | 4.8 / 5 (41 reviews) | Barcelona, Spain | 28+ years14,000+ treatments | Bone marrow transplantation, Allogenic bone marrow transplantation from an unrelated donor | — | — | Bookimed Award: Best pediatric hospital, World's Best Specialized Hospitals 2022 by Newsweek | ||
| #4 | 4.6 / 5 (0 reviews) | Madrid, Spain | — | — | Consultation with a neurosurgeon | — | — | Joint Commission International , European Society for Medical Oncology | |
| #5 | 3.8 / 5 (6 reviews) | Madrid, Spain | — | — | Liver resection, Allogenic bone marrow transplantation from a related donor | — | — | World's Best Hospitals 2021 by Newsweek | |
| #6 | 4.4 / 5 (5 reviews) | Marbella, Spain | — | — | Consultation with a neurosurgeon | — | — | Joint Commission International | |
| #7 | 4.4 / 5 (6 reviews) | Barcelona, Spain | — | — | Robotic da Vinci prostatectomy, Stomach cancer surgery | — | — | Joint Commission International | |
| #8 | 4.6 / 5 (16 reviews) | Madrid, Spain | — | 26,000+ treatments | Lobectomy, Brachytherapy for prostate cancer | — | — | European Foundation for Quality Management, TÜV AG Сompany Research & Investing Certificate | |
| #9 | 5.0 / 5 (6 reviews) | Pamplona, Spain | — | — | High intensity focused ultrasound ablation (HIFU), Proton-beam therapy | — | — | Joint Commission International , European Society for Medical Oncology | |
| #10 | 4.6 / 5 (5 reviews) | Barcelona, Spain | — | — | Consultation with a neurosurgeon | — | — | European Foundation for Quality Management, Certification according to DIN EN ISO 9001 by TÜV NORD CERT |