| 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 | — | — | Thyroid resection , Breast cancer surgery | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation | |
| #2 | 4.9 / 5 (7) | Seoul, Republic of Korea | — | 32,000+ treatments | Lung cancer surgery, Radiosurgery of a brain tumor | — | — | Global Healthcare Accreditation Program, World's Best Hospitals 2021 by Newsweek | |
| #3 | 4.5 / 5 (7) | Seoul, Republic of Korea | — | 65,000+ treatments | Transurethral resection of the prostate (TURP), Thyroid resection | — | — | International Organization for Standardization, Korean Institute for Healthcare Accreditation | |
| #4 | 3.5 / 5 (4) | Seoul, Republic of Korea | — | — | Laparoscopic nephrectomy, Cryodestruction | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation | |
| #5 | 4.5 / 5 (43) | Seoul, Republic of Korea | — | — | Robotic da Vinci prostatectomy, Craniotomy | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation | |
| #6 | 5.0 / 5 (1) | Seoul, Republic of Korea | — | — | Immunotherapy for lung cancer, Removal of liver cancer | — | — | World's Best Hospitals 2021 by Newsweek, World's Best Smart Hospitals 2021 by Newsweek | |
| #7 | 3.6 / 5 | Seoul, Republic of Korea | — | — | Thyroidectomy, Stomach cancer surgery | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation | |
| #8 | 3.6 / 5 | Goyang, Republic of Korea | — | — | Chemotherapy, Craniotomy | — | — | Advanced Regenerative Medicine Implementation Institution (Ministry of Health and Welfare, Republic of Korea) |