| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.6 / 5 (415 reviews) | Istanbul, Turkey | — | — | Immunotherapy with Keytruda (Pembolizumab), Thyroidectomy | — | — | International Organization for Standardization, Joint Commission International | |
| #2 | 4.6 / 5 (534 reviews) | Istanbul, Turkey | — | — | Liver resection, Chemotherapy for liver cancer | — | — | Planetree's Gold Certificate, International Accreditation System for Interventional Oncology Services (IASIOS) | |
| #3 | 4.6 / 5 (172 reviews) | Vienna, Austria | — | — | Chemotherapy, Gastric polyps removal | — | — | International Organization for Standardization, World's Best Hospitals 2021 by Newsweek | |
| #4 | 4.9 / 5 (55 reviews) | Istanbul, Turkey | — | — | Immunotherapy, Nephrectomy | — | — | Turkish Medical Association, International Health Tourism Authorization Certificate | |
| #5 | 4.5 / 5 (495 reviews) | Istanbul, Turkey | 34+ years | Bone marrow transplantation, The Wertheim-Meigs operation | — | — | Joint Commission International , Patient choice in Pediatric Oncology & Hematology Oncology | ||
| #6 | 5.0 / 5 (55 reviews) | Istanbul, Turkey | — | — | Mastectomy, Robotic da Vinci prostatectomy | — | — | Joint Commission International , International Organization for Standardization | |
| #7 | 4.5 / 5 (57 reviews) | Frankfurt am Main, Germany | — | — | Radiotherapy for throat cancer, Immunotherapy for breast cancer | — | — | TÜV AG Сompany Research & Investing Certificate, TOP German hospital according to 2019 Focus ranking | |
| #8 | 4.2 / 5 (19 reviews) | Istanbul, Turkey | — | — | Lobectomy, Immunotherapy with Keytruda (Pembolizumab) | — | — | Best clinic for radiotherapy, Best price for PET/CT | |
| #9 | 4.2 / 5 (21 reviews) | Vienna, Austria | — | — | Consultation with a thoracic surgeon | — | — | International Organization for Standardization | |
| #10 | 4.6 / 5 (131 reviews) | Bangkok, Thailand | — | — | Da Vinci Robotic System, Immunotherapy with Keytruda (Pembolizumab) | — | — | International Organization for Standardization, Joint Commission International |