Blood & Urine Test PanelPrivate blood tests
and health checks
in Marylebone (Great Portland Street).
Book private blood tests and health checks in Marylebone. Attend our Randox Health partner clinic on Great Portland Road. Receive your results by email with a doctor’s interpretation.

Opening hours
Monday: 7:00 am - 7:00 pm
Tuesday: 7:00 am - 7:00 pm
Wednesday: 7:00 am - 7:00 pm
Thursday: 7:00 am - 7:00 pm
Friday: 7:00 am - 6:00 pm
Saturday: 7:00 am - 7:00 pm
Sunday: 11:00 am - 5:00 pm
Before you visit
Purchase your test online.
Then select your appointment.
Health tests in Marylebone (Great Portland Street)
Start with a broader health check or explore a specific concern.
Blood & Urine Test Panel
Blood Test PanelHormone Imbalance Test | Check Reproductive & Thyroid Hormones
Blood Test PanelInsulin Resistance Test UK | Detect Diabetes & Insulin Resistance
Check your selected test for preparation, inclusions, and estimated result times.
From booking to understanding
Four simple steps, with a doctor’s interpretation included.
-
Choose your test
Choose and purchase your test online through AIS Health Check.
-
Book your visit
Use your booking email to select your clinic and appointment.
-
Attend the clinic
Visit your selected clinic for sample collection.
-
Get your results
Receive your results by email, with a doctor’s interpretation.
Results you can make sense of.
Your report comes with a doctor’s interpretation. Understand your results and any suggested next steps.
Doctor interpretation included
A written explanation accompanies your test results.
Delivered by email
Check your chosen test for its estimated turnaround time.
More time to talk things through
Book a separate paid GP consultation for a more detailed discussion.
Your Marylebone (Great Portland Street) clinic
Randox Health
143-149 Great Portland Street
Marylebone
London
W1W 6QN
Appointments at this clinic are arranged following an online purchase made through the AIS Health Check website.
Open the clinic map ↗Public transport
Great Portland Street Station (Circle, Hammersmith & City, Metropolitan lines) - 2 min walk
Regent's Park Station (Bakerloo line) - 7 min walk
Oxford Circus Station (Bakerloo, Central & Victoria lines) - 12 min walk
Bus routes 18, 27, 30 & 205 stop close to Great Portland Street Station
Bus routes 88 & 453 stop at Portland Place - 3 min walk
Parking
Q-Park Oxford Street on Cavendish Square - 12 min walk
Street Parking may be available but limited.
Accessibility
Wheelchair-accessible entrance
Why choose AIS Health Check?
We arrange your testing and provide a doctor’s interpretation. Your sample is collected at the partner clinic shown on this page.
Medical insight
Understand your results with a doctor’s written explanation.
Laboratory testing
Samples are processed by our laboratory partner.
A team you can contact
Get help with your booking and questions about the service.
How do I book my appointment?
Choose and purchase your test through AIS Health Check. Your booking email includes a link to select your clinic and appointment.
Can I walk in or pay at the clinic?
Please purchase your test and book an appointment before attending. Your AIS booking is arranged after purchase.
Do I need to fast?
Preparation depends on your chosen test. Follow the instructions on the product page and in your booking information.
What should I bring?
Have your booking confirmation available when you arrive. Follow any identification or preparation instructions provided with your appointment.
When will my results arrive?
Result times vary by test. Check your product page for the estimated turnaround and its starting point. Actual times can be earlier or later.
Can I speak to a doctor afterwards?
Your results include a doctor's interpretation. An optional paid GP consultation is available for a more detailed discussion.
Make time for your health.
Choose your test. Book Marylebone (Great Portland Street). Get a clearer picture.