| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.7 / 5 (484 reviews) | Barcelona, Spain | — | 23,000+ treatments | Stereotaxic radiosurgery, radiation therapy for colorectal cancer, radiation therapy for brain tumor, radiotherapy for throat cancer, radiotherapy for prostate cancer, radiotherapy for lung cancer, radiotherapy for breast cancer, radiotherapy for uterine cancer, radiotherapy for cervical cancer, radiation therapy for stomach cancer, radiation therapy for kidney cancer, radiation therapy for ovarian cancer, radiation therapy for sarcomas | Advanced radiotherapy techniques | Offers a wide range of specialized radiotherapy treatments. Uses state-of-the-art equipment like the Novalis radiosurgery system. Over 1,100,000 patients treated, with JCI accreditation. | Joint Commission International , European Foundation for Quality Management | |
| #2 | 4.4 / 5 (5 reviews) | Marbella, Spain | — | — | Advanced radiotherapy techniques, CT and MRI integration for precise targeting | Nasopharyngeal cancer patients | Offers tailored radiotherapy plans to minimize side effects, with JCI accreditation. Includes pre-treatment CT and MRI for precise targeting. 6-week treatment program available. | Joint Commission International | |
| #3 | 4.2 / 5 (5 reviews) | Alicante, Spain | — | — | Radiotherapy | — | — | Joint Commission International | |
| #4 | 5.0 / 5 (1 review) | Madrid, Spain | — | — | Radiotherapy | — | — | Joint Commission International , International Organization for Standardization | |
| #5 | 3.8 / 5 (6 reviews) | Madrid, Spain | — | MRI of one area, Consultation with an ophthalmologist | — | — | World's Best Hospitals 2021 by Newsweek |