GCRGCR™

Thailand · 2026

Best oncology & cancer clinics in Thailand

Ratings updated 13 October 2026

The highest-rated oncology & cancer facilities in Thailand — ranked on one transparent GCR Rating, highest first.

Ranked by GCR Rating (out of 5). No stars, no review counts — one fair number per facility.
Scoped to ThailandView worldwide ranking12 facilities

Browse oncology & cancer clinics by city in Thailand

RankClinic NameGCR Rating
1Vejthani International Hospital4.893
2Bangkok International Hospital4.868
3Samitivej Sukhumvit Hospital4.791
4Bangkok Cancer Hospital Wattanosoth4.764
5Bangkok Hospital4.695
6Namarak Hospital4.503
7Bangkok Cancer Specialized Hospital4.138
8Bumrungrad International Hospital3.953
9Chiwamitra Cancer Hospitalnot enough data
10Chulabhorn Oncology Medical Centrenot enough data
11Verita Lifenot enough data
12สถาบันโรคลำไส้ใหญ่และทวารหนัก Colorectal Disease Institutenot enough data

The GCR Rating is computed from verified patient reviews, patient-reported outcomes and clinical results. How the Rating is calculated →

Frequently asked questions

What does the GCR Rating measure for oncology & cancer clinics?

The GCR Rating is computed from verified patient reviews — rating, volume and recency — using a Bayesian model, not a simple average, and that calculation is the same for every specialty GCR ranks. Clinics in this ranking provide cancer diagnosis, chemotherapy, radiotherapy and surgical treatment — patients evaluating this category place particular weight on communication during an already difficult experience, alongside clinical outcomes. See the full methodology for the exact formula.

Is the GCR Rating the same as a clinic's Google star rating?

No. The GCR Rating is a separate score (out of 5, to three decimals) computed from verified review rating, volume and recency using a Bayesian model — not a simple star average. Two oncology & cancer clinics with the same Google star rating can end up with different GCR Ratings once volume and recency are factored in.

Does an oncology & cancer clinic need a minimum number of reviews to be ranked?

There's no fixed cutoff. GCR's Bayesian model pulls a clinic's average toward the oncology & cancer specialty-wide mean in proportion to how few verified reviews it has — so a clinic with limited review history starts near the typical score for the specialty and earns its way up or down as more verified reviews accumulate, rather than being excluded outright.

How often is this ranking updated?

Rankings are refreshed on a regular cycle as new verified reviews come in, so an oncology & cancer clinic's position can move up or down over time as its underlying review data changes.

What does it mean if an oncology & cancer clinic isn't listed here?

GCR ranks clinics it has verified review data for. If a clinic you're considering isn't listed, you can suggest it for review — GCR will look into adding it once enough verified patient data is available.