| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.5 / 5 (22 reviews) | Seoul, Republic of Korea | 45,000+ treatments | Extended analysis of blood, Biopsy | — | — | International Organization for Standardization, Korean Institute for Healthcare Accreditation | ||
| #2 | 4.8 / 5 (6 reviews) | Seoul, Republic of Korea | — | 32,000+ treatments | CT of the chest, CT scan of the body part | — | — | Global Healthcare Accreditation Program, World's Best Hospitals 2021 by Newsweek | |
| #3 | 4.8 / 5 (5 reviews) | Incheon, Republic of Korea | — | — | CT (computer tomography), Extended analysis of blood | — | — | World's Best Hospitals 2021 by Newsweek | |
| #4 | 4.5 / 5 (7 reviews) | Seoul, Republic of Korea | 65,000+ treatments | Throat cancer operation | — | — | International Organization for Standardization, Korean Institute for Healthcare Accreditation | ||
| #5 | 4.0 / 5 (3 reviews) | Seoul, Republic of Korea | — | — | — | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation | |
| #6 | 4.6 / 5 (42 reviews) | Seoul, Republic of Korea | — | Consultation with an oncologist, PET/CT | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation | ||
| #7 | 5.0 / 5 (2 reviews) | Seoul, Republic of Korea | — | — | Extended analysis of blood, Histopathology revision | — | — | World's Best Hospitals 2021 by Newsweek | |
| #8 | 5.0 / 5 (1 review) | Seoul, Republic of Korea | — | — | Resection of laryngeal tumor, chemotherapy, radiotherapy | Organ preservation in advanced cases | Preserves the larynx in 70% of advanced cases — one of the highest rates worldwide. Performs over 1,200 cancer surgeries annually. Offers full treatment spectrum from surgery to radiotherapy. | World's Best Hospitals 2021 by Newsweek, World's Best Smart Hospitals 2021 by Newsweek | |
| #9 | 3.6 / 5 (0 reviews) | Seoul, Republic of Korea | 23+ years | PET/CT, CT of the chest | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation |