| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.7 / 5 (495) | Barcelona, Spain | — | 23,000+ treatments | Radiosurgery of a brain tumor, High intensity focused ultrasound ablation (HIFU) | — | — | Joint Commission International , European Foundation for Quality Management | |
| #2 | 5.0 / 5 (3) | Madrid, Spain | — | — | Thyroid resection , Thyroidectomy | — | — | Joint Commission International , International Organization for Standardization | |
| #3 | 4.7 / 5 (44) | Barcelona, Spain | — | 14,000+ treatments | Bone marrow transplantation | — | — | Bookimed Award: Best pediatric hospital, World's Best Specialized Hospitals 2022 by Newsweek | |
| #4 | 4.7 / 5 (17) | Madrid, Spain | 50+ years26,000+ treatments | Pneumonectomy, Lobectomy | — | — | European Foundation for Quality Management, TÜV AG Сompany Research & Investing Certificate |