| 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 | — | Bone marrow transplantation, CAR T-cell therapy, chemotherapy, targeted therapy, immunotherapy | Pediatric and adult blood cancers | Performs the highest number of private-sector bone marrow transplants in Spain. Offers CAR T-cell therapy and personalized cancer treatments. Doctors have performed 1,100+ transplants with Newsweek-ranked hospital recognition. | World's Best Hospitals 2021 by Newsweek | ||
| #2 | 4.5 / 5 (0 reviews) | Madrid, Spain | — | — | Hematology Oncology | — | — | Joint Commission International , International Organization for Standardization | |
| #3 | 4.6 / 5 (16 reviews) | Madrid, Spain | 31+ years26,000+ treatments | Chemotherapy, bone marrow transplantation, CAR T-cell therapy, haploidentical stem cell transplantation, biological therapy | Hematologic cancers and pediatric oncology | Qualified European Center for CAR-T therapy with personalized Kymriah® treatment. Offers advanced diagnostics like PET MRI and biopsy. Specialized hematology program led by experienced oncology specialists. | European Foundation for Quality Management, TÜV AG Сompany Research & Investing Certificate | ||
| #4 | 2.5 / 5 (0 reviews) | Madrid, Spain | — | — | Hematology Oncology | — | — | European Foundation for Quality Management, Certification according to DIN EN ISO 9001 by TÜV NORD CERT | |
| #5 | 4.0 / 5 (0 reviews) | Madrid, Spain | — | — | Chemotherapy, Lymphoma chemotherapy | — | — | — | |
| #6 | 2.8 / 5 (0 reviews) | Madrid, Spain | — | — | Hematology Oncology | — | — | European Foundation for Quality Management, Certification according to DIN EN ISO 9001 by TÜV NORD CERT | |
| #7 | — / 5 (0 reviews) | Madrid, Spain | 32+ years | Bone marrow transplantation, CAR T-cell therapy, leukemia chemotherapy, lymphoma chemotherapy, haploidentical stem cell transplantation | Pediatric hematology and oncology | Specializes in pediatric blood disorders and cancers with dedicated oncology ICU. Offers CAR T-cell therapy and haploidentical transplants. Unit director trained at University of Maryland. | International Organization for Standardization, European Foundation for Quality Management |