| 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 | — | Autologous bone marrow transplantation, allogenic bone marrow transplantation from a related donor, allogenic bone marrow transplantation from an unrelated donor | Complex blood disorders and cancers | Performs the largest number of bone marrow transplants among private hospitals in Spain. Offers both autologous and allogenic transplants with personalized care. | World's Best Hospitals 2021 by Newsweek |