| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 5.0 / 5 (9) | Seoul, Republic of Korea | — | — | Radiotherapy for breast cancer, Breast cancer surgery | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation | |
| #2 | 4.9 / 5 (7) | Seoul, Republic of Korea | — | 32,000+ treatments | Craniotomy, Lung cancer surgery | — | — | Global Healthcare Accreditation Program, World's Best Hospitals 2021 by Newsweek | |
| #3 | 3.5 / 5 (4) | Seoul, Republic of Korea | — | — | Laparoscopic nephrectomy | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation | |
| #4 | 4.5 / 5 (43) | Seoul, Republic of Korea | — | — | Nephrectomy, Radiotherapy for prostate cancer | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation | |
| #5 | 5.0 / 5 (1) | Seoul, Republic of Korea | — | — | Gamma Knife for brain tumor, Colectomy (large bowel resection) | — | — | World's Best Hospitals 2021 by Newsweek, World's Best Smart Hospitals 2021 by Newsweek | |
| #6 | 3.6 / 5 | Seoul, Republic of Korea | — | — | Rectal resection, Removal of colon cancer | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation | |
| #7 | 3.4 / 5 (2) | Seoul, Republic of Korea | — | — | Small intestine resection, Gastric polyps removal | — | — | Korean Institute for Healthcare Accreditation |