| 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 | 76+ years23,000+ treatments | Keytruda (pembrolizumab) immunotherapy, molecular profiling | Lung cancer patients needing continued immunotherapy | JCI-accredited clinic with Dr. Sullivan's 16 years of lung cancer specialization. Offers personalized treatment plans including Keytruda continuation after thorough response assessment. | Joint Commission International , European Foundation for Quality Management | ||
| #2 | 4.6 / 5 (5 reviews) | Barcelona, Spain | 37+ years | Immunotherapy for lung cancer | — | — | European Foundation for Quality Management, Certification according to DIN EN ISO 9001 by TÜV NORD CERT | ||
| #3 | 4.0 / 5 (0 reviews) | Madrid, Spain | — | — | Immunotherapy for lung cancer, Consultation with a neurosurgeon | — | — | — |