| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 3.8 / 5 (6 reviews) | Madrid, Spain | — | Brain MRI, MRI of one area | — | — | World's Best Hospitals 2021 by Newsweek | ||
| #2 | 4.4 / 5 (6 reviews) | Barcelona, Spain | 38+ years | Consultation with an oncologist, Consultation with a surgeon | — | — | Joint Commission International | ||
| #3 | 4.5 / 5 (0 reviews) | Madrid, Spain | — | — | Laryngectomy | — | — | Joint Commission International , International Organization for Standardization | |
| #4 | 4.6 / 5 (16 reviews) | Madrid, Spain | — | 26,000+ treatments | Online Consultation with Oncologist, Biopsy | — | — | European Foundation for Quality Management, TÜV AG Сompany Research & Investing Certificate | |
| #5 | 4.6 / 5 (5 reviews) | Barcelona, Spain | 36+ years | Laryngectomy | — | — | European Foundation for Quality Management, Certification according to DIN EN ISO 9001 by TÜV NORD CERT |