| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.7 / 5 (436 reviews) | Barcelona, Spain | 27+ years23,000+ treatments | Bone marrow transplantation, allogenic bone marrow transplantation from an unrelated donor | Complex leukemia cases requiring BMT | Offers allogenic bone marrow transplants with JCI accreditation. Specialist Dr. Francesc Cobo Valien has 25+ years in oncohematology. Part of Quiron group with dedicated hematology oncology services. | Joint Commission International , European Foundation for Quality Management | ||
| #2 | 4.8 / 5 (41 reviews) | Barcelona, Spain | 30+ years14,000+ treatments | Bone marrow transplantation, allogenic bone marrow transplantation from an unrelated donor, intra-arterial chemotherapy | Pediatric cases requiring bone marrow transplants | 94% survival rate for Acute lymphoblastic leukemia. Offers HEPA-filtered rooms for post-transplant care. Specializes in pediatric oncology and hematology. | Bookimed Award: Best pediatric hospital, World's Best Specialized Hospitals 2022 by Newsweek | ||
| #3 | 3.8 / 5 (6 reviews) | Madrid, Spain | 19+ years | CAR T-cell therapy, bone marrow transplantation, chemotherapy, targeted therapy, immunotherapy | Pediatric cases with Philadelphia chromosome–positive ALL | National reference center for CAR T-cell therapy. Offers personalized CAR-T programs and performs the most bone marrow transplants among private hospitals in Spain. | World's Best Hospitals 2021 by Newsweek | ||
| #4 | 4.4 / 5 (6 reviews) | Barcelona, Spain | 126+ years | CT scan of the body part | — | — | Joint Commission International | ||
| #5 | 2.5 / 5 (0 reviews) | Madrid, Spain | 36+ years | — | — | — | European Foundation for Quality Management, Certification according to DIN EN ISO 9001 by TÜV NORD CERT | ||
| #6 | 5.0 / 5 (6 reviews) | Pamplona, Spain | 64+ years | Bone marrow transplantation, chemotherapy, vaccines derived from retinoic acid | Complex hematologic malignancies | Specializes in hematologic malignancies with personalized care. Offers bone marrow transplants and innovative treatments like retinoic acid-derived vaccines. | Joint Commission International , European Society for Medical Oncology |