| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 5.0 / 5 (2) | Istanbul, Turkey | 27+ years | PET-MRI | — | — | Joint Commission International , International Organization for Standardization | ||
| #2 | 4.6 / 5 (175) | Vienna, Austria | — | — | PET-MRI | — | — | World's Best Hospitals 2021 by Newsweek, International Organization for Standardization | |
| #3 | 5.0 / 5 (57) | Istanbul, Turkey | — | Radiotherapy, Chemotherapy | — | — | Joint Commission International , International Organization for Standardization | ||
| #4 | 4.6 / 5 (539) | Istanbul, Turkey | 33+ years | Craniotomy, Lobectomy | — | — | Planetree's Gold Certificate, International Accreditation System for Interventional Oncology Services (IASIOS) | ||
| #5 | 4.5 / 5 (262) | Istanbul, Turkey | 24+ years | Immunotherapy with Keytruda (Pembolizumab), Radiotherapy | — | — | Joint Commission International , Turkish Medical Association (Türk Tabıplerı Bırliği) | ||
| #6 | 4.6 / 5 (429) | Istanbul, Turkey | — | — | Radioiodine therapy, High intensity focused ultrasound ablation (HIFU) | — | — | International Organization for Standardization, Joint Commission International | |
| #7 | 4.6 / 5 (149) | Antalya , Turkey | — | — | Hysterectomy (uterus removal), Brain tumor surgery | — | — | Joint Commission International | |
| #8 | 4.7 / 5 (161) | Istanbul, Turkey | — | — | Immunotherapy with Keytruda (Pembolizumab), Brain tumor removal | — | — | International Organization for Standardization, Joint Commission International | |
| #9 | 4.7 / 5 (492) | Barcelona, Spain | — | 23,000+ treatments | Stomach cancer surgery, Craniotomy | — | — | Joint Commission International , European Foundation for Quality Management | |
| #10 | 4.5 / 5 (55) | Istanbul, Turkey | — | — | Mastectomy, Enucleation of eye | — | — | Joint Commission International |