GCRGCR™

Worldwide ranking · 2026

Best diagnostic imaging clinics, ranked worldwide

Ratings updated 1 October 2026

MRI, CT, PET and ultrasound diagnostic centres — ranked on one transparent GCR Rating, highest first.

108clinics ranked
66,888data points scored
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. Most recent verified review: September 2026. How this data is verified →

Browse diagnostic imaging clinics by country

Country
City
108 facilities
GCR ranking of diagnostic imaging facilities by GCR Rating, highest first
RankClinic NameCountryCityGCR Rating
1NABON MEDICAL CLINICThailandTambon Wichit4.868
2Ecografía 5D Barcelona, Eco Baby Centro de Ecografías 5DSpainBarcelona4.863
3Pro Diagnostic Group, a.s. - Diagnostické centráSlovakiaBratislava4.826
4Fullerton Health Executive Health Screening and Advanced Diagnostic ImagingPhilippinesTaguig4.818
5Aster Imaging Centre, Muteena, DeiraUnited Arab EmiratesDubai4.785
6Shields Health at UMass Memorial - Shrewsbury StreetUnited StatesWorcester4.759
7Premier Diagnostic CenterUnited Arab EmiratesDubai4.756
8DEIRA CITY MEDICAL DIAGNOSTIC CENTER L.L.CUnited Arab EmiratesDubai4.747
9Medisim Sonografická ambulanciaSlovakiaSenec4.735
10CIR Centros de Imagen & Radiología©MexicoCiudad de Mexico4.708
11Medserena Upright MRI Centre ManchesterUnited KingdomGreater Manchester4.707
12MVR DIAGNOSTIC CLINIC LLCUnited Arab EmiratesDubai4.701
13RadiologyAssistUnited StatesFarmers Branch4.692
14Bangkok HospitalThailandKrung Thep Maha Nakhon4.691
15Addlife Total Check-Up CenterThailandKrung Thep Maha Nakhon4.687
16Poliklinika Mlynská dolinaSlovakiaBratislava IV4.678
17Green ImagingUnited StatesHouston4.678
18Ashrey Diagnostic CenterPhilippinesMakati City4.674
19IRC-Taawun المركز الدولي للاشعة فرع التعاون‎United Arab EmiratesSharjah4.651
20Ihre-Radiologen.de - MVZ TegelGermanyBerlin4.617
21Centro de Diagnostico de las Afecciones MamariasSpainBarcelona4.606
22CM MediclinicThailandAmphoe Mueang Chiang Mai4.600
23Premedix ClinicSlovakiaBratislava4.585
24Doctors Clinic Diagnostic CenterUnited Arab EmiratesDubai4.569
25River Oaks MRI & Diagnostic: MRI ,OPEN - MRI, CT Scans, Ultrasound, Imaging & Pain Management Experts in TexasUnited StatesSugar Land4.568
Showing 1–25 of 108

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 diagnostic imaging 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 MRI, CT, PET and ultrasound scanning — patients evaluating this category typically weigh turnaround time for results and clarity of the radiologist’s report alongside the scanning experience itself. 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 diagnostic imaging clinics with the same Google star rating can end up with different GCR Ratings once volume and recency are factored in.

Does a diagnostic imaging 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 diagnostic imaging 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 a diagnostic imaging clinic's position can move up or down over time as its underlying review data changes.

What does it mean if a diagnostic imaging 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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