Marylebone Diagnostic Centre
Not sure which test you need? Tell us your concern and we will guide you to the right test with same-day appointments and no GP referral required.
Google Reviews
Test from £35. Profiles from £59 – £499 · No hidden fees
Why private testing
NHS blood tests require a GP referral and can take weeks. At MDC, you book directly, attend the same day, and receive results in 24–42 hours.
Book online and attend today. Walk-ins welcome subject to availability.
Self-refer for any test. No GP approval required. Book directly.
Secure digital report reviewed by our clinical team
Regulated to the highest UK clinical standards. Medical staff on site.
Private testing rooms. Confidential results sent directly to you.
Find the right test
Select the concern that best matches your situation. Each links to the right test or profile for you — with transparent pricing
Not sure where to start?
Choose the symptom or situation closest to yours below. We will show you exactly which test to book and what it costs.
Checks iron, ferritin, B12, vitamin D, thyroid and more — the most common causes of persistent fatigue.
From £169
fatigue profile
Checks B12, vitamin D, folate, magnesium, zinc and other key nutrients in one panel.
From £299
Vitamins & Minerals Profile
Same-day testing for HIV, syphilis, hepatitis B & C, chlamydia, gonorrhoea and more.
From £129 - £249
Sexual Health Test
Comprehensive pre-marital panel for UAE, KSA Couple and more.
From £349 (per person)
Pre-marriage Test
TSH, free T3, free T4, and thyroid antibodies — a complete picture of thyroid function.
From £89 - £149
Thyroid Profiles
Checks ferritin, thyroid, DHT, androgens and nutritional markers linked to hair thinning.
From £179
Hair Loss Profile
Liver, kidney, cholesterol, full blood count, thyroid, diabetes markers — all in one visit.
From £249
Health Screening Profile
Not sure which test is right for you?
Call or WhatsApp us and our team will advise — no obligation.
Simple process
Getting tested at MDC takes less than 30 minutes from booking to sample collection.
Book online and attend today. Walk-ins welcome subject to availability.
73 Baker Street, W1U 6RD. 5 minutes from Baker Street tube.
By a trained phlebotomist in a private, comfortable room.
Secure digital report. Optional clinician review available.
Patient reviews
Google Reviews
Posted on Latifa NsouliTrustindex verifies that the original source of the review is Google. I couldn't recommend a better clinic to go to. From the moment we entered, Omar and Katie made me and my fiancée feel at ease. They were so kind and accommodating. After my fiancée did his blood test, he felt light headed and Katie and Omar took good care of him. Unfortunately, my veins are very hard to find and so Omar and Katie recommended I come back a different day when I'm well hydrated and less stressed. They re-booked my appointment free of charge and were so patient with me. I came back again to do my blood test a week later and Omar made me feel so comfortable and at ease. I can't say thank you enough to the both of them. Thank you so much!Posted on jon sangTrustindex verifies that the original source of the review is Google. Excellent service by team and overall highly professional and satisfying experience.Posted on Beatrice TyTrustindex verifies that the original source of the review is Google. Came in to do AMH test but found a greater value of Female fertility profile. Simple and easy reporting. The doctor called me back to check on me and explain the results. Really lovely clinic 4 mins walk from Baker Street station and an easy walk to Oxford Street. Would highly recommend Marylebone Diagnostic Centre.Posted on shomon zamanTrustindex verifies that the original source of the review is Google. I had an appointment once at this clinic and I am pretty impressed with the services, staff knowledge, amazing and outstanding facilities. A special mention to Sebastian Naranjo and the team that surrounds him and all the specialist doctors and nurses that work there. A recommended clinic for shock wave therapy that is based in harley street. Further to that, omar went through every process with me, which was very helpful. Very patient focused. Will come back again. I came back a few times for blood test and amazing as always. Staff are very knowledgeable, always know how to treat patients with respect. Sebastian has recommended shockwave therapy for my right shoulder pain and will consider this right away.Posted on HollyTrustindex verifies that the original source of the review is Google. My partner went to see Sebastian at Androhaus at MDC and had a great experience. Lovely clinic with professional staff. The pathway was really clear.Posted on cardi popTrustindex verifies that the original source of the review is Google. Amazing facility! Special thank you to Sebastian which took great care of me , I have been in so many facilities in Harley street and Marylebone and nothing compares to the service I got here . Sebastian is an expert in shockwave therapy . Will definitely recommendPosted on Alejandro Candel ParraTrustindex verifies that the original source of the review is Google. I would rate an overall experience as Excellent! Welcoming approach from all the staff and clinicians, the clinic itself is modern and comfortable with hygge environment. Shout out to Sebastian which was in charge of my therapy and clear about goals. The result was, as mentioned, excellent and wouldn’t regret having chosen Sebastian as my therapist.Posted on Blas MartinezTrustindex verifies that the original source of the review is Google. As a healthcare professional, I highly recommend this clinic. I have personally undergone treatment there under Seba’s care and guidance, and I have also recommended it to my patients and clients, who have expressed their satisfaction with both the level of care and the results achieved.Posted on Ivan ReyesTrustindex verifies that the original source of the review is Google. Great experience with shockwave therapy at Marylebone Diagnostic Centre. The appointment was very comfortable, professional, and discreet. Sebastian made me feel at ease throughout and explained everything clearly. Highly recommend.Posted on Brian RobTrustindex verifies that the original source of the review is Google. Done a sperm analysis and got results within 24 hours with a simple and clear report. I called the centre a day before for instructions, they asked me to come collect the collection cup and it was returned to them within the hour. Great service. Thank you, this is my first time leaving review on google :)Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
Common questions
Single tests start from £35. Full profiles range from £59 to £499 depending on what is included. You only pay for what you need — no hidden fees and no GP consultation charge required.
No referral is needed. You can book any test directly online or by phone and attend the same day. Your results are sent securely to you — not to your GP unless you request it.
Simply choose the test or profile that matches your concern, book online or call us on 020 77 240 540, and attend our Baker Street clinic at your chosen time. Same-day appointments are available and walk-ins are welcome subject to availability.
Marylebone Diagnostic Centre is located at 73 Baker Street, London W1U 6RD — 5 minutes from Baker Street tube station on the Bakerloo, Circle, Jubilee and Metropolitan lines. We serve patients from across London including Marylebone, Mayfair, Paddington, and the West End.
Private blood tests are not necessarily more accurate than NHS tests — both use accredited laboratories. The difference is speed and accessibility. With MDC you get same-day appointments, no referral needed, results in 24–42 hours, and the flexibility to choose exactly which tests you want.
For many people, yes. If you are waiting weeks for an NHS appointment, have a specific concern you want answered quickly, or want to test markers your GP has not recommended, private testing gives you direct access and faster answers. Tests start from £35.
Most results are ready within 24 to 42 hours. Some specialist panels may take slightly longer. You will be notified as soon as your report is available in your secure patient portal.
This depends on your policy and provider. MDC is a registered provider with WPA and Helix insurances. We recommend checking with your insurer before booking. We accept all major credit cards and bank transfers for self-pay patients.
No waiting lists. No GP referral. Results in 24–42 hours.
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