| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.7 / 5 (485 reviews) | Barcelona, Spain | — | 23,000+ treatments | Chemotherapy, brachytherapy, radiotherapy, immunotherapy, robotic surgery | Complex gastrointestinal and endocrine cancers | Performs 1,100+ oncology procedures annually with advanced techniques like HIPEC and robotic surgery. JCI-accredited with specialists trained at top institutions including Memorial Sloan-Kettering. | Joint Commission International , European Foundation for Quality Management | |
| #2 | 4.4 / 5 (5 reviews) | Marbella, Spain | — | — | Radiotherapy with CT and MRI integration planning | Comprehensive radiotherapy treatment | JCI-accredited facility offering advanced radiotherapy with precise tumor targeting. Part of Spain's largest private hospital group with multilingual support and integrated services. | Joint Commission International | |
| #3 | 4.4 / 5 (6 reviews) | Alicante, Spain | — | — | Personalized cancer treatments, immunotherapy, molecular-guided chemotherapy, gene-based therapies, electrochemotherapy | Metastatic breast cancer | Pioneers in personalized cancer treatments, including gene-based therapies. Features JCI accreditation and specialists trained at leading institutions like University of Navarra. | Joint Commission International | |
| #4 | 5.0 / 5 (1 review) | Madrid, Spain | — | — | Oncology | — | — | Joint Commission International , International Organization for Standardization | |
| #5 | 3.8 / 5 (6 reviews) | Madrid, Spain | — | — | Chemotherapy, targeted therapy, immunotherapy, radiation therapy with True Beam, robotic oncosurgery with da Vinci system | Precision cancer treatment with organ preservation | Offers latest cancer drugs and True Beam radiation therapy. Uses da Vinci robot for minimally invasive tumor removal. Performs highest number of bone marrow transplants among private Spanish hospitals. | World's Best Hospitals 2021 by Newsweek |