| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.5 / 5 (261) | Istanbul, Turkey | 24+ years | Immunotherapy with Keytruda (Pembolizumab), Radiotherapy | — | — | Joint Commission International , Turkish Medical Association (Türk Tabıplerı Bırliği) | ||
| #2 | 4.6 / 5 (175) | Vienna, Austria | — | — | CT scan of the whole body | — | — | World's Best Hospitals 2021 by Newsweek, International Organization for Standardization | |
| #3 | — / 5 | Shanghai, China | — | — | CT scan of the whole body | — | — | — | |
| #4 | 4.4 / 5 (12) | Bangkok, Thailand | 11+ years | Hormone therapy | — | — | International Organization for Standardization | ||
| #5 | 4.6 / 5 (429) | Istanbul, Turkey | — | — | Autologous bone marrow transplantation, Mastectomy | — | — | International Organization for Standardization, Joint Commission International | |
| #6 | 4.6 / 5 (148) | Antalya , Turkey | — | — | Allogenic bone marrow transplantation from a related donor, Hysterectomy (uterus removal) | — | — | Joint Commission International | |
| #7 | 4.7 / 5 (161) | Istanbul, Turkey | — | — | Immunotherapy with Keytruda (Pembolizumab), Brain tumor removal | — | — | International Organization for Standardization, Joint Commission International | |
| #8 | 4.6 / 5 (539) | Istanbul, Turkey | 27+ years | Craniotomy, Lobectomy | — | — | Planetree's Gold Certificate, International Accreditation System for Interventional Oncology Services (IASIOS) | ||
| #9 | 4.7 / 5 (492) | Barcelona, Spain | — | 23,000+ treatments | Laser surgery for laryngeal cancer, Excision of skull base tumor | — | — | Joint Commission International , European Foundation for Quality Management | |
| #10 | 4.8 / 5 (276) | Istanbul, Turkey | — | — | Bone resection, Mastectomy | — | — | Certification according to DIN EN ISO 9001 by TÜV NORD CERT, Joint Commission International |