| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 3.6 / 5 | Goyang, Republic of Korea | 46+ years | Chemotherapy, Craniotomy | — | — | Advanced Regenerative Medicine Implementation Institution (Ministry of Health and Welfare, Republic of Korea) | ||
| #2 | 4.5 / 5 (23) | Seoul, Republic of Korea | — | 45,000+ treatments | Chemotherapy for lung cancer, Radiotherapy for prostate cancer | — | — | International Organization for Standardization, Korean Institute for Healthcare Accreditation | |
| #3 | 3.4 / 5 (2) | Seoul, Republic of Korea | — | — | Thyroidectomy, Small intestine resection | — | — | Korean Institute for Healthcare Accreditation | |
| #4 | 4.0 / 5 | Seoul, Republic of Korea | 37+ years | Bone marrow transplantation, Hysterectomy (uterus removal) | — | — | — | ||
| #5 | 5.0 / 5 (9) | Seoul, Republic of Korea | — | — | Chemotherapy for breast cancer, Radiotherapy for breast cancer | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation | |
| #6 | 4.9 / 5 (7) | Seoul, Republic of Korea | — | 32,000+ treatments | Lobectomy, Thyroidectomy | — | — | Global Healthcare Accreditation Program, World's Best Hospitals 2021 by Newsweek | |
| #7 | 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 | |
| #8 | 3.5 / 5 (4) | Seoul, Republic of Korea | — | — | Laparoscopic nephrectomy, Cancer screening | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation | |
| #9 | 4.5 / 5 (43) | Seoul, Republic of Korea | — | — | Chemotherapy for liver cancer, Lung segmentectomy | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation | |
| #10 | 5.0 / 5 (1) | Seoul, Republic of Korea | — | — | Gamma Knife for brain tumor, Removal of liver cancer | — | — | World's Best Hospitals 2021 by Newsweek, World's Best Smart Hospitals 2021 by Newsweek |