Worldwide ranking · 2026
Cancer diagnosis, chemotherapy, radiotherapy and surgical oncology — ranked on one transparent GCR Rating, highest first.
Compiled independently by GCR since 2012 from verified patient reviews — no clinic can pay to change its Rating. How this data is verified →
| Rank | Clinic Name | Country | City | GCR Rating |
|---|---|---|---|---|
| 1 | The Brooklyn Cancer Center | United States | Kings County | |
| 2 | Baptist Health Herbert Wertheim Cancer Institute | United States | Miami | |
| 3 | Bangkok Cancer Hospital Wattanosoth | Thailand | Krung Thep Maha Nakhon | |
| 4 | Dr Sadir Juma Alrawi | United Arab Emirates | Dubai | |
| 5 | Burjeel Cancer Institute | United Arab Emirates | Abu Dhabi | |
| 6 | Safe Group Plastic & Urology Surgery Clinic | Turkey | Sisli | |
| 7 | Advanced Care Oncology Center | United Arab Emirates | Dubai | |
| 8 | Dr. Cem Yılmaz Meme Cerrahisi - İstanbul Breast Center | Turkey | Kadkoy | |
| 9 | Hope4Cancer | Mexico | Tijuana | |
| 10 | MD Anderson Cancer Center Madrid | Spain | Madrid | |
| 11 | Oasis of Hope Hospital | Mexico | Tijuana | |
| 12 | National Cancer Research Center | Spain | Madrid | |
| 13 | VHIO Vall d'Hebron Institut d’Oncologia | Spain | Barcelona | |
| 14 | Oncological Institute of St. Elizabeth | Slovakia | Bratislava | |
| 15 | German Cancer Research Center | Germany | Heidelberg | |
| 16 | The National Cancer Institute | Mexico | Ciudad de Mexico | |
| 17 | National Center for Tumor Diseases - NCT | Germany | Heidelberg | |
| 18 | IVO. Instituto Valenciano de Oncología | Spain | Valencia | |
| 19 | The Christie NHS Foundation Trust | United Kingdom | Greater Manchester | |
| 20 | Dr. Mohanad Diab, Cancer.Immunotherapy,Targeted,Chemotherapy,Latest,Cancer treatments | United Arab Emirates | أبو ظبي | |
| 21 | Národný onkologický ústav | Slovakia | Bratislava | |
| 22 | Východoslovenský onkologický ústav, a.s. | Slovakia | Kosice IV | |
| 23 | Memorial Sloan Kettering Cancer Center New York - Main Hospital | United States | New York | |
| 24 | City of Hope Helford Hospital | United States | Duarte | |
| 25 | Prof. Dr. Serkan Keskin / Onkoloji | Turkey | Sisli |
The GCR Rating is computed from verified patient reviews, patient-reported outcomes and clinical results. How the Rating is calculated →
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.
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.
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.
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.
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.
