| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.7 / 5 (440 reviews) | Barcelona, Spain | 26+ years23,000+ treatments | Chemotherapy, surgical oncology, gastrointestinal surgery | Gastrointestinal and endocrine cancers | Specialist Dr. Jaume Capdevila has performed 1,100 treatments. Clinic is JCI-accredited with a 4.7 patient rating and 95% recommendation rate. | Joint Commission International , European Foundation for Quality Management | ||
| #2 | 4.4 / 5 (6 reviews) | Barcelona, Spain | 33+ years | Consultation with an oncologist, PET/CT | — | — | Joint Commission International | ||
| #3 | 4.6 / 5 (5 reviews) | Barcelona, Spain | 37+ years | — | — | — | European Foundation for Quality Management, Certification according to DIN EN ISO 9001 by TÜV NORD CERT |