| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.7 / 5 (440 reviews) | Barcelona, Spain | 41+ years23,000+ treatments | Chemotherapy for breast cancer, stereotactic radiotherapy | Advanced breast cancer cases | Specializes in breast cancer treatment with Dr. Agusti Barnadas Molins, a chief oncologist with 39 years of experience and over 1,100 procedures performed. Clinic is JCI and EFQM certified. | Joint Commission International , European Foundation for Quality Management | ||
| #2 | 3.8 / 5 (6 reviews) | Madrid, Spain | — | Brain MRI, Consultation with a neurosurgeon | — | — | World's Best Hospitals 2021 by Newsweek | ||
| #3 | 4.4 / 5 (6 reviews) | Barcelona, Spain | 18+ years | Consultation with an oncologist, PET/CT | — | — | Joint Commission International | ||
| #4 | 4.6 / 5 (16 reviews) | Madrid, Spain | — | 26,000+ treatments | Brain MRI, Biochemical blood analysis | — | — | European Foundation for Quality Management, TÜV AG Сompany Research & Investing Certificate | |
| #5 | 5.0 / 5 (6 reviews) | Pamplona, Spain | — | Online Consultation with Oncologist, PET/CT | — | — | Joint Commission International , European Society for Medical Oncology | ||
| #6 | 4.6 / 5 (5 reviews) | Barcelona, Spain | 37+ years | Chemotherapy for breast cancer | — | — | European Foundation for Quality Management, Certification according to DIN EN ISO 9001 by TÜV NORD CERT | ||
| #7 | 4.0 / 5 (0 reviews) | Madrid, Spain | — | — | Chemotherapy for breast cancer, Consultation with a neurosurgeon | — | — | — |