| 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 | 26+ years23,000+ treatments | Leukemia chemotherapy, Consultation with creation of treatment plan | — | — | Joint Commission International , European Foundation for Quality Management | ||
| #2 | 3.8 / 5 (6 reviews) | Madrid, Spain | — | Chemotherapy, targeted therapy, immunotherapy, bone marrow transplant | Leukemia with Noonan Syndrome | Led by Dr. Luis Madero, a globally recognized pediatric oncologist with 37 years of experience and 1,100 treatments performed. Offers personalized chemotherapy plans and access to latest clinical trials. | World's Best Hospitals 2021 by Newsweek | ||
| #3 | 4.8 / 5 (41 reviews) | Barcelona, Spain | 30+ years14,000+ treatments | Consultation with a hematologist, Brain MRI | — | — | Bookimed Award: Best pediatric hospital, World's Best Specialized Hospitals 2022 by Newsweek | ||
| #4 | 4.5 / 5 (0 reviews) | Madrid, Spain | — | — | Leukemia chemotherapy | — | — | Joint Commission International , International Organization for Standardization | |
| #5 | 4.4 / 5 (6 reviews) | Barcelona, Spain | 126+ years | Consultation with an oncologist | — | — | Joint Commission International | ||
| #6 | 4.6 / 5 (16 reviews) | Madrid, Spain | 31+ years26,000+ treatments | Extended analysis of blood, Online Consultation with Oncologist | — | — | European Foundation for Quality Management, TÜV AG Сompany Research & Investing Certificate | ||
| #7 | 5.0 / 5 (6 reviews) | Pamplona, Spain | — | Consultation with an oncologist, Online Consultation with Oncologist | — | — | Joint Commission International , European Society for Medical Oncology | ||
| #8 | 4.6 / 5 (5 reviews) | Barcelona, Spain | 37+ years | Leukemia chemotherapy | — | — | European Foundation for Quality Management, Certification according to DIN EN ISO 9001 by TÜV NORD CERT |