Fast, accurate blood tests in London
Our on-site labs mean faster answers and same-day care. Get tested, diagnosed and treated in one visit.
Why choose DocTap testing
Doctor-led testing you can trust
From rapid on-site analysis to full laboratory testing, DocTap delivers fast, reliable results — all overseen by experienced London GPs.
- On-site labs for faster care.
- Your results go straight to your GP, who can act on them the same day.
- 9 London clinics.
- All fully CQC-regulated, 4 with on-site laboratories.
- 1,000+ tests
- through our UKAS-accredited central London partner lab, may with next-day results.
- GP-led testing
- Experienced doctors advise on the right tests, interpret results, and plan care.
- Independent medical advice you can trust.
- Our GPs aren’t incentivised to sell tests — they only recommend what’s clinically right for you.
Related services
Health Screens
Comprehensive health screens for peace of mind and early detection of health issues.
Understanding your options
What should I book?
GP Consultation
See your GP first. Recommended if you’re unsure which tests you need or require a specific investigation.
- 15-min GP consultation
- Your GP can advise which tests to take and collect samples during your appointment. Tests will be charged separately.
- Available at all clinics. If you may need a blood test, booking at a lab site lets your GP act on results the same day.
Test and Treat
Have your tests first, then see your GP about 15 minutes later with results ready. Ideal if you’re feeling unwell and want a same-day review of key health markers.
- Full blood count
- Liver function
- Kidney function (excludes electrolytes)
- Glucose, triglycerides & cholesterol
- CRP (infection / inflammation marker)
- 15-min GP consultation to review results, examine you and start treatment
- Available at select clinics with on-site labs only
- HbA1c +£20 Recommended if you are concerned about type 2 diabetes.
- Tiredness profile +£40 Includes thyroid function and ferritin tests. These tests take 1 hour to run and will be reported by your doctor after the appointment.
How it works
Test & Treat
Get tested then see the GP with your results — all in one visit.
- 1Book a Test & Treat slotFrom the booking page select 'General GP Appointment' and then 'Add instant blood tests'.
- 2Have your tests on arrivalA full blood panel will be taken immediately (including full blood count, liver and kidney function, glucose, cholesterol, triglycerides, and CRP to check for infection or inflammation).
- 3See your GP 15 mins later, with the resultsYour doctor reviews your test results, examines you if needed, and explains what they mean for your care.
- 4Start treatment todayYour GP can act on your results immediately, so you leave with a clear plan and any prescriptions you need.
Instant testing
Clinics with on-site labs
Hammersmith
Situated on King Street, a 6-minute walk from Hammersmith underground stations.
Kings Cross & Euston
Located just off Euston Road, less than a 10-minute walk from both Euston and King’s Cross stations.
Liverpool Street & Bank
Located in the heart of the City, a 5-minute walk from Liverpool Street and Bank stations.
London Bridge
Located just off Borough High Street, an 8-minute walk from London Bridge station.
Choosing between NHS and private blood testing
Why many patients choose DocTap for blood tests
Both NHS and private services provide reliable results — but DocTap offers faster, more convenient care.
NHS Blood Tests
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Usually requires a GP consultation first to request approval for testing
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Most samples are taken at a separate hospital, often needing a second appointment
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Only limited tests are available — focused on diagnosing specific conditions rather than general health checks
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Results typically take several days to return and are often only discussed if something abnormal is found
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Patients rarely receive a full copy of their results
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Free for clinically approved tests
DocTap Private Blood Testing
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Appointments available the same day across multiple London clinics
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If your GP recommends a blood test, it’s usually done during the same appointment — no need to visit a hospital or separate clinic
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Wide choice of over 1,000 tests, including wellness panels and specialist profiles
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Many results are available later the same day through your secure online portal.
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You’ll always receive a full copy of your results.
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From £40 — transparent pricing, no hidden fees
Frequently asked questions
- How do I prepare for my test?
Most blood tests only take a few minutes to complete and require no preparation. Occasionally, you may be required to fast or stop medication before a blood test but we will tell you in advance if you need to do this.
- What types of scans does DocTap offer?
DocTap offers X-ray, MRI, Ultrasound and ECG. These are carried out by our scanning partners Oryon and Vista.
- My doctor has requested I have some tests done, can I get these done with you?
If a patient requests blood tests recommended by another doctor, we may be able to help. However, the tests will only be carried out if a DocTap doctor deems them to be clinically appropriate. Please note, we do not offer a standalone 'phlebotomy service' (i.e. blood collection without testing). To proceed, the patient must book a GP consultation and pay the standard fee. During the appointment, the doctor will review the patient's condition and decide whether to carry out the requested tests. Any supporting information from the referring doctor can help our GP make this decision.
- How much will my tests cost?
Our A-Z test list shows the cost of all blood, urine and stool tests that we offer. In addition to the cost of tests, there is a £20 handling fee and an appointment fee (starting from £10 for a healthcare assistant or £75 for a GP).
- What is a Healthcare assistant (HCA)?
A healthcare assistant (HCA) is a healthcare professional who is trained to take bloods and gather information for clinical assessments by our doctors. DocTap's HCAs help us to bring you the best possible care whether you are having a health screen or blood test.
- I can't find the test that I need on your website, do you offer it?
Our A-Z test list shows all the tests that we are able to offer at DocTap. Some more specialist tests can only be carried out by specific providers.
- Can you take bloods for my child?
Our laboratory partner TDL operate a Patient Reception at 76 Wimpole Street, London W1G 9RT where they are able to take bloods for children under 16. Your doctor will give you a phlebotomy form during your appointment so you can bring this with you to the patient reception. Our staff are not able to take blood from children under 16 in our clinics.
- Will my insurance cover my tests or scans?
Health insurance plans vary significantly depending on the provider and the level of cover you have. Please always contact your health insurance provider for clarification. If you would like to have tests or scans but want to to check with your insurance provider whether or not these are covered your doctor can provisionally add tests so that you can contact us to confirm them once you have spoken to your insurance provider.
- Can I book a scan without having a GP consultation?
While scans are safe and useful tools for diagnosis, over use of scans can be hazardous. For this reason our doctors need to assess you prior to referring you for a scan.
- Can you do a scan for my child?
Please contact us at support@doctap.co.uk to check whether we can do the scan you think your child may need.
- Can I get an ultrasound 2 week wait scan with DocTap?
Unfortunately we do not do any 2 week wait referrals through DocTap. Please contact your NHS GP if this is something you require.
- I already have some blood test / scan results, can I see doctor so they can explain them to me?
Yes, our doctors would be delighted to discuss test results with patients. Please also bring any other relevant documentation that you have about your condition.