Worldwide ranking · 2026

Best oncology & cancer clinics, ranked worldwide

Cancer diagnosis, chemotherapy, radiotherapy and surgical oncology — ranked on one transparent GCR Rating, highest first.

113clinics ranked

49,853data points scored

August 2026last updated

Ranked by GCR Rating (out of 5). No stars, no review counts — one fair number per facility.

Compiled independently by GCR since 2012 from verified patient reviews — no clinic can pay to change its Rating. How this data is verified →

GCR ranks 113 oncology & cancer clinics across 11 countries.
Each clinic's GCR Rating is computed from verified patient reviews using a Bayesian model that weighs rating, review volume and recency — not a simple average.
Clinics with fewer verified reviews are pulled toward the oncology & cancer specialty-wide average rather than excluded, so any clinic with verified reviews can be ranked.
Rankings are refreshed on a regular cycle as new verified reviews come in.

GCR ranking of oncology & cancer facilities by GCR Rating, highest first
Rank	Clinic Name	Country	City	GCR Rating
1	Vejthani International Hospital	Thailand	Krung Thep Maha Nakhon	4.892
2	The Brooklyn Cancer Center	United States	Kings County	4.797
3	Bangkok Cancer Hospital Wattanosoth	Thailand	Krung Thep Maha Nakhon	4.727
4	Bangkok Hospital	Thailand	Krung Thep Maha Nakhon	4.693
5	Roswell Park Comprehensive Cancer Center	United States	Buffalo	4.686
6	Golden State Cancer Center	United States	Los Angeles	4.607
7	Karmanos Cancer Institute	United States	Detroit	4.550
8	Dr. Mohanad Diab, Cancer.Immunotherapy,Targeted,Chemotherapy,Latest,Cancer treatments	United Arab Emirates	أبو ظبي	4.534
9	Burjeel Cancer Institute	United Arab Emirates	Abu Dhabi	4.527
10	Prof. Dr. Serkan Keskin / Onkoloji	Turkey	Sisli	4.436
11	Beatson West of Scotland Cancer Centre	United Kingdom	Glasgow City	4.431
12	Advanced Care Oncology Center	United Arab Emirates	Dubai	4.426
13	Dr Sadir Juma Alrawi	United Arab Emirates	Dubai	4.397
14	Acıbadem Bodrum Hospital	Turkey	Bodrum	4.326
15	MD Anderson Cancer Center Madrid	Spain	Madrid	4.326
16	Hope4Cancer	Mexico	Tijuana	4.319
17	National Cancer Research Center	Spain	Madrid	4.314
18	İzmir Genel Cerrah - Doç. Dr. Mutlu ÜNVER - Meme Kanseri - Karaciğer Kanseri - Kolon Kanseri - Mide Kanseri	Turkey	Bayrakl	4.282
19	National Center for Tumor Diseases - NCT	Germany	Heidelberg	4.273
20	Gulf International Cancer Center	United Arab Emirates	Abu Dhabi	4.258
21	Oasis of Hope Hospital	Mexico	Tijuana	4.257
22	The National Cancer Institute	Mexico	Ciudad de Mexico	4.248
23	Moores Cancer Center at UC San Diego Health	United States	San Diego	4.236
24	Oncology Clinic at Loyola Heights	Philippines	Quezon City	4.226
25	Florida Cancer Specialists & Research Institute	United States	Tampa	4.224
26	Bangkok Cancer Specialized Hospital	Thailand	Krung Thep Maha Nakhon	4.175
27	Istanbul Oncology Hospital	Turkey	Maltepe	4.153
28	Memorial Cancer Institute	United States	Pembroke Pines	4.143
29	Medicana International Ankara Hastanesi Cyberknife Radyocerrahi Merkezi	Turkey	Cankaya	4.137
30	IVO. Instituto Valenciano de Oncología	Spain	Valencia	4.130
31	Fred Hutch Cancer Center	United States	Seattle	4.129
32	Východoslovenský onkologický ústav, a.s.	Slovakia	Kosice IV	4.125
33	Národný onkologický ústav	Slovakia	Bratislava	4.104
34	ION INSTITUTO ONCOLÓGICO NACIONAL	Mexico	Guadalajara	4.093
35	Memorial Sloan Kettering Cancer Center New York - Main Hospital	United States	New York	4.087
36	Dr Roshan Koshy Jacob,Consultant Medical oncology/Haematology, NMC Royal Hospital Sharjah,Best oncologist/Haematologist	United Arab Emirates	Sharjah	4.033
37	German Cancer Research Center	Germany	Heidelberg	3.986
38	Arcadia Praxisklinik	Germany	Bad Emstal	3.958
39	Bumrungrad International Hospital	Thailand	Krung Thep Maha Nakhon	3.948
40	The Arthur G. James Cancer Hospital and Richard J. Solove Research Institute	United States	Columbus	3.939
41	Moffitt Magnolia Campus	United States	Tampa	3.929
42	Immunity Therapy Center	Mexico	Tijuana	3.901
43	Safe Group Plastic & Urology Surgery Clinic	Turkey	Sisli	3.886
44	Florida Cancer Specialists & Research Institute	United States	Bradenton	3.851
45	Mammacentrum sv.Agáty ProCare	Slovakia	Banska Bystrica	3.837
46	Arden Cancer Research Centre	United Kingdom	West Midlands	3.820
47	Dr. Eugene Rent	United Arab Emirates	Dubai	3.756
48	VHIO Vall d'Hebron Institut d’Oncologia	Spain	Barcelona	3.575
49	Dr. Cem Yılmaz Meme Cerrahisi - İstanbul Breast Center	Turkey	Kadkoy	3.501
50	Comprehensive Cancer Center CLARA CAMPAL	Spain	Madrid	3.424
51	Oncological Institute of St. Elizabeth	Slovakia	Bratislava	3.323
52	UCH Macmillan Cancer Centre	United Kingdom	Greater London	3.234
53	INCAN	Guatemala	Ciudad de Guatemala	3.119
54	COI Centro Oncológico Internacional CDMX	Mexico	Ciudad de Mexico	2.977
55	Namarak Hospital	Thailand	Krung Thep Maha Nakhon	2.939
56	LOC part of HCA Healthcare UK	United Kingdom	Greater London	not enough data
57	Mount Vernon Cancer Centre	United Kingdom	Northwood	not enough data
58	Icon Cancer Centre London	United Kingdom	Greater London	not enough data
59	The Cancer Centre	United Kingdom	Eaglestone	not enough data
60	The Royal Marsden Private Care at Cavendish Square	United Kingdom	Greater London	not enough data
61	Oncology Centre	United Kingdom	Gloucestershire	not enough data
62	Guy's NHS Cancer Centre	United Kingdom	Greater London	not enough data
63	Guy's Cancer at QMH	United Kingdom	Greater London	not enough data
64	Hallwang Clinic GmbH	Germany	Dornstetten	not enough data
65	Charité Comprehensive Cancer Center	Germany	Berlin	not enough data
66	UKD - TUD - HZDR	Germany	Dresden	not enough data
67	Hallwang Private Oncology Clinic	Germany	Dornstetten	not enough data
68	Comprehensive Cancer Center CCCLMU - Cancer Center Munich	Germany	Munchen	not enough data
69	Medias Klinikum Burghausen	Germany	Burghausen	not enough data
70	Outdoor Against Cancer gGmbH	Germany	Munchen	not enough data
71	ChemoThermia Oncology Center	Turkey	Kucukcekmece	not enough data
72	Dr. Atakan Demir	Turkey	Atasehir	not enough data
73	Okan Kuzhan	Turkey	Kadkoy	not enough data
74	Verita Life	Thailand	Krung Thep Maha Nakhon	not enough data
75	Chulabhorn Oncology Medical Centre	Thailand	Bangkok	not enough data
76	Queen Sirikit Center for Breast Cancer Foundation	Thailand	Krung Thep Maha Nakhon	not enough data
77	ThaiMedics	Thailand	Krung Thep Maha Nakhon	not enough data
78	NSH Cyberknife Cancer Center	United Arab Emirates	Dubai	not enough data
79	Dr.Amit Chakraborty Cancer Care/ Best Head & Neck cancer Surgeon/ Thyroid & Larynx Cancer/Dubai UAE	United Arab Emirates	Dubai	not enough data
80	Tawam Oncology Center	United Arab Emirates	Al Ain	not enough data
81	UOMI Cancer Center	Spain	Barcelona	not enough data
82	Instituto Viamed de Oncología Quirúrgica Avanzada	Spain	Madrid	not enough data
83	Centro 360 de Excelencia Oncológica GCCC	Spain	Barcelona	not enough data
84	IOB Institute of Oncology	Spain	Barcelona	not enough data
85	Centro de Excelencia GenesisCare Málaga	Spain	Malaga	not enough data
86	Immunocine Cancer Center	Mexico	Cancun	not enough data
87	Oasis of Hope Breast Cancer Center	Mexico	Tijuana	not enough data
88	Immunotherapy Institute	Mexico	Tijuana	not enough data
89	Oncológica	Mexico	Ciudad de Mexico	not enough data
90	Klinika klinickej onkológie SZU a NOÚ	Slovakia	Bratislava	not enough data
91	Národný onkologický inštitút	Slovakia	Bratislava	not enough data
92	Biomedicínske centrum SAV	Slovakia	Bratislava	not enough data
93	Department of oncology	Slovakia	Trencin	not enough data
94	Amala s.r.o	Slovakia	Trebisov	not enough data
95	MUDr. Hana Garanová, onkológia	Slovakia	Kosice IV	not enough data
96	Philippine Oncology Center Corporation Fairview Center	Philippines	Quezon City	not enough data
97	Philippine Cancer Center	Philippines	Quezon City	not enough data
98	MANILA OFFICE / Modern Cancer Hospital Guangzhou	Philippines	Pasay City	not enough data
99	OncoCare Philippines	Philippines	San Fernando	not enough data
100	THE SPECIALISTS Surgery & Cancer Center - East Avenue Branch	Philippines	Quezon City	not enough data
101	The Cancer Center Philippines	Philippines	Makati City	not enough data
102	Cardinal Santos Cancer Center	Philippines	San Juan City	not enough data
103	Global Care Cancer Institute Inc	Philippines	Bay	not enough data
104	Philippine Foundation for Breast Care, Incorporated	Philippines	Quezon City	not enough data
105	INTEGRA Cancer Institute	Guatemala	Ciudad de Guatemala	not enough data
106	Centro de Cáncer Guatemala	Guatemala	Ciudad de Guatemala	not enough data
107	Cancer Consultants	Guatemala	Ciudad de Guatemala	not enough data
108	Dr. Herbert Antonio Castillo Oliva	Guatemala	Ciudad de Guatemala	not enough data
109	Dr. William Campbell Manzanares	Guatemala	Ciudad de Guatemala	not enough data
110	The London Clinic Cancer Centre	United Kingdom	Greater London	not enough data
111	St Luke's Cancer Centre	United Kingdom	Surrey	not enough data
112	King's Cancer Care Center	United Arab Emirates	Dubai	not enough data
113	CANCER HEALER CENTER	United Arab Emirates	دبي	not enough data

Showing 1–25 of 113

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.

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