| 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 | — | — | Lumpectomy , Breast cancer surgery | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation | |
| #2 | 4.9 / 5 (7) | Seoul, Republic of Korea | — | 32,000+ treatments | Radiosurgery of a brain tumor, Craniotomy | — | — | Global Healthcare Accreditation Program, World's Best Hospitals 2021 by Newsweek | |
| #3 | 4.5 / 5 (7) | Seoul, Republic of Korea | — | 65,000+ treatments | Hysterectomy (uterus removal), Bone marrow transplantation | — | — | International Organization for Standardization, Korean Institute for Healthcare Accreditation | |
| #4 | 3.5 / 5 (4) | Seoul, Republic of Korea | — | — | Laparoscopic nephrectomy | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation | |
| #5 | 4.5 / 5 (43) | Seoul, Republic of Korea | — | — | Thyroidectomy, Coronary angioplasty | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation | |
| #6 | 5.0 / 5 (2) | Seoul, Republic of Korea | — | — | Myomectomy (removal of uterine fibroids), Radioiodine therapy | — | — | World's Best Hospitals 2021 by Newsweek | |
| #7 | 5.0 / 5 (1) | Seoul, Republic of Korea | — | — | Colectomy (large bowel resection), Thyroidectomy | — | — | World's Best Hospitals 2021 by Newsweek, World's Best Smart Hospitals 2021 by Newsweek | |
| #8 | 3.6 / 5 | Seoul, Republic of Korea | — | — | Breast cancer surgery, Stomach cancer surgery | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation | |
| #9 | 4.2 / 5 | Seoul, Republic of Korea | — | — | CT of the chest | — | — | — |