ISMA — Integrated Sleep Medicine Assessment
A joint sleep clinic at Harley Street, combining the expertise of Professor Vik Veer (ENT Consultant Sleep Surgeon) with private GP care from Dr Natasha Thandrayen.
Book Sleep AssessmentJoint Sleep & GP Clinic
Sleep problems rarely have a single cause. The ISMA clinic was designed to deliver the most efficient, joined-up route to diagnosis and treatment — combining Professor Vik Veer's expertise as a specialist sleep surgeon with Dr Natasha's holistic GP assessment in a single coordinated pathway.
Sleep conditions often spill over into broader medical issues — endocrine, cardiac, respiratory, and neurological. In the past, patients had to see multiple specialists separately, causing delays and repeated tests.
The ISMA clinic changes this: patients complete a home sleep study, fill in online sleep questionnaires, and receive a detailed personal report from Professor Vik Veer — all before the in-person appointment. They then meet with Dr Natasha for a focused GP assessment and examination.
This combined approach ensures patients not only understand their sleep disorder but also receive cohesive care for the broader health issues that surround it. Our aim is simple: clarity, direction, and a clear pathway.
Professor Vik Veer — ENT & Sleep Surgeon, Harley Street
Dr Natasha Thandrayen — Private GP, Member of the British Sleep Society
How the pathway works — £395
A coordinated four-step process completed over 2–3 weeks, entirely from your own home until your Harley Street appointment.
-
Initial Testing
You will complete validated sleep questionnaires and undergo a WatchPAT home sleep study. The WatchPAT device is posted to your home — you wear it overnight in your own bed and return it. It measures oxygen levels, pulse rate, respiratory effort, snoring intensity, sleep stages, and apnoea-hypopnoea index (AHI). Once complete, the data is automatically uploaded for analysis.
-
Blood Results
Please provide any existing blood results you have for analysis. If you do not have any recent results, these can be arranged at a private clinic at an additional cost. Blood results are an important part of the holistic picture — many conditions that affect sleep (such as thyroid disorders, diabetes, and anaemia) are identified at this stage.
-
Expert Reports from Professor Vik Veer
After reviewing your sleep study and questionnaire responses, Professor Vik Veer will provide a written report incorporating your questionnaire results, and a personalised video explanation of your sleep study findings. Both reports are made available to you before your GP appointment, so you arrive fully informed and ready to discuss next steps.
-
GP Consultation with Dr Natasha Thandrayen
You will have a face-to-face consultation with Dr Natasha at 25 Harley Street, London W1G 9QW. Appointments are 30 minutes and are held Monday to Friday, usually between 11:15am and 2pm (other times are sometimes available). Dr Natasha will conduct a physical examination, answer any questions you have about Professor Veer's report, and discuss treatment options and onward referrals. You will also receive a clinic letter from Dr Natasha following your review.
Note: A video consultation with Dr Natasha is available if this is more convenient for you, but please be aware that a physical examination cannot be performed remotely.
Getting started: The first step is to book your GP clinic appointment with Dr Natasha. The WatchPAT device will then be arranged, and the whole process takes approximately 2–3 weeks from booking to your appointment.
Book your assessment onlineWhat patients say
"In February this year I visited Professor Vik Veer at his London clinic, which proved to be extremely rewarding as I was very anxious and worried about my condition. His calming manner put me at my ease straight away. He listened to what I had to say and then explained in easy-to-understand terms the options that were available to me. I left his clinic at much more ease and would highly recommend his services."
"I wouldn't hesitate to recommend Mr Veer — my experience under his care has been fantastic. He has the right balance of professionalism whilst being approachable and understanding. I felt comfortable and reassured in his care from first consultation to my operation for sleep apnoea and turbinate reduction — the benefits have been immediate."
Who is the ISMA assessment for?
The ISMA sleep assessment is designed for adults experiencing any of the following:
Snoring
Loud or disruptive snoring that disturbs sleep or a partner.
Suspected sleep apnoea
Waking unrefreshed, gasping, or being told you stop breathing during sleep.
Insomnia
Difficulty falling asleep, staying asleep, or waking too early.
Excessive daytime sleepiness
Feeling uncontrollably sleepy during the day despite adequate hours in bed.
Night-time waking
Frequent waking that disrupts sleep architecture and leaves you unrefreshed.
UARS
Upper Airway Resistance Syndrome — often missed on standard sleep tests.
No referral is needed to book. Simply call us on 0207 935 1711 and the team will arrange for the WatchPAT device to be sent to you ahead of your appointment date.
Sleep clinic questions
-
At the ISMA clinic you complete a home sleep study and online questionnaires beforehand. Professor Vik Veer then produces a personalised video report and written summary of your results. You then meet Dr Natasha Thandrayen, who reviews blood results, examines you, explains the findings, and maps out your next steps — all in one joined-up pathway.
-
Professor Veer reviews your home WatchPAT sleep study data, your completed questionnaire scores, and any existing medical information to assess for obstructive sleep apnoea, snoring, and related breathing conditions. His video and written report explains your results clearly and outlines possible treatment pathways.
-
The home sleep study runs overnight in your own bed. Professor Veer's video and written report are prepared before your appointment. The in-person consultation with Dr Thandrayen is a focused session covering your sleep results, blood tests, physical examination, and treatment planning.
-
Yes. Because the sleep study device is posted to your home and the initial report is delivered digitally, patients from anywhere in the UK can access the ISMA assessment before travelling to the Harley Street clinic for their in-person consultation.
-
No. You can book the ISMA assessment directly without a GP referral. Simply call us on 0207 935 1711 and the team will arrange everything, including sending the WatchPAT device to your home ahead of your appointment.
Book your ISMA sleep assessment
£395 — includes WatchPAT home sleep study, written and video reports from Professor Veer, and 30-minute in-person GP consultation with Dr Natasha at 25 Harley Street.
0207 935 1711