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Functional Doctors

GP (general practitioner) in Central London

5.0Review appointment
“I saw Dr Raja virtually for stomach and immune system issues and, after having undergone testing, have identified the underlying problems, which has been very helpful. I would recommend Dr Raja.”
20 May 2026 - D.C.Verified patient
See the 10 reviews

Specialties provided by Functional Doctors

Specialists in:

GP (general practitioner)

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What makes Functional Doctors a leading medical centre in Central London?

Functional Doctors is a welcoming and patient-focused functional medicine clinic that provide online consultations, led by Dr Nicki Gill and Dr Meera Rajah. Combining their extensive experience as NHS General Practitioners with specialist training in functional medicine, they passion is in holistic care with particular focus on gut health, nutrition, and hormone imbalance. Their approach prioritises identifying and addressing the root causes of illness, offering personalised, evidence-based strategies to support long-term wellness.


At the heart of their practice is the philosophy of treating the whole person, not just the symptoms. Using a systems-oriented approach, which looks at how different biological processes interact and affect each other, they assess each patient’s unique genetic, environmental, and lifestyle factors to create tailored treatment plans. From gut microbiome testing and nutritional profiling to hormone and methylation assessments, they integrate advanced functional medicine techniques with conventional medical expertise to optimise health and prevent disease.


Dr Gill and Dr Rajah are committed to empowering patients through education and collaboration. By explaining results in-depth and recommending simple, practical steps, they help individuals make meaningful changes to improve energy, immunity, and overall well-being. Their dedication to a personalised, patient-led approach ensures that every consultation supports both immediate health concerns and long-term vitality.


What medical services does the clinic offers specialise in?

The Functional Doctors virtual clinic specialises in functional medicine, providing personalised, holistic care for complex and chronic health conditions, with a strong focus on hormonal, metabolic and immune-related disorders.


They support patients with the following health concerns:

  • Weight gain despite diet and exercise
  • Gut health
  • Low mood that won't shift
  • Child health and development
  • Autoimmune worries
  • Subfertility concerns


Where is Functional Doctors located?

Functional Doctors is a virtual clinic, and offers their consultations online. Dr Gill and Dr Rajah work together at Functional Doctors, so the appointment may be with either doctor. If you have a preference please include this information in your booking request, or call directly on 0203 488 2349.

Clinic locations

  • Functional Doctors - Online Consultation profile image

    Functional Doctors - Online Consultation

    Central London, London SW2

    Expert in:

    Nutrition
    Women's health
    Abdominal pain
    Acne
    Allergy
    Alzheimer's disease
    Anaemia
    Anti-ageing treatments
    Anxiety
    Bloated stomach

    Clinic specialties

    GP (general practitioner)

    Medical insurances accepted at this clinic:

    I'm paying for myself

    "Insurance companies do not sponsor the appearance of specialists or clinics on Top Doctors. Any mention of an insurance company is solely to indicate that these clinics or specialists accept this type of medical insurance."

Credentials

Specialties

  • Functional Medicine

Languages spoken

  • English

Reviews

All reviews are from real patients and have been verified by our Customer Service department to ensure they meet our guidelines. Rules of the service

10 reviews

5.0

Review this clinic
  • Would you recommend this doctor?
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  • I saw Dr Raja virtually for stomach and immune system issues and, after having undergone testing, have identified the underlying problems, which has been very helpful. I would recommend Dr Raja.
    20 May 2026

    D.C.

    Verified patient
  • Dr Nicki Gill is an extremely knowledgable functional medicine dr who has empathy and the skill to create a treatment plan that targets the issues. She ensures her presence to support you along that journey in available online and via email which really supports the patient. I was in safe hands throughout and could not have asked for a better dr than Dr Gill - if only more drs were like her!
    4 May 2026

    H.B.

    Verified patient
  • It has been such a relief to find someone who can connect all the different symptoms and explain the root causes of what my daughter was struggling with. After 5 years, it all just makes a lot of sense. Dr Gill has offered tests and then solutions that actually address the underlying causes rather than just attempting to treat the symptoms. If the traditional 'medical' route isn't working for you, this is definitely worth a try.
    1 May 2026

    S.P.

    Verified patient
  • Dr Rajah has a wealth of knowledge and a strong support network. Kind and thoughtful, she listens to your needs and acts upon them with the greatest of care. Thank you for all your help so far in my journey to optimal health :)
    29 April 2026

    A.B.

    Verified patient
  • I am incredibly grateful to the functional medicine practitioners who helped me identify the root cause of my health concerns with such clarity and efficiency. Their thorough, insightful approach gave me a real sense of understanding and confidence in how to move forward. I would highly recommend them to anyone feeling uncertain or overwhelmed about their health.
    28 April 2026

    E.z.

    Verified patient
  • Dr Rajah took time to fully understand all my symptoms, which really improves my confidence that I can finally resolve my symptoms. I would highly recommend.
    28 April 2026

    B.A.

    Verified patient
  • Great at finding the route cause of my problems. Professional and friendly. Would highly recommend!
    28 April 2026

    X.M.

    Verified patient
  • Thorough analysis and consultation that leads to an individualised and very effective plan for my health! Highly recommended! Thank you Dr Meera ❤️
    27 April 2026

    C.C.

    Verified patient
  • Very happy with service and treatment.
    27 April 2026

    C.S.

    Verified patient
  • Couldn’t recommend more, kind, professional, caring and goes above and beyond to fit us in on short notice.
    17 April 2026

    K.K.

    Verified patient
View all reviews
The doctor, or where applicable the hospital or medical centre in which the doctor provides services, undertakes to keep the information relating to the prices of services published on their profile on the Top Doctors platform up to date at all times, ensuring that such prices correspond to those effectively charged to patients. In the event of any discrepancy between the published price and the price ultimately charged to the patient, the doctor and/or the relevant hospital or medical centre shall be solely liable towards the patient and towards Top Doctors for any claim or financial difference arising therefrom.

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Functional Doctors - Online ConsultationCentral London, London SW2

"Insurance companies do not sponsor the appearance of specialists or clinics on Top Doctors. Any mention of an insurance company is solely to indicate that these clinics or specialists accept this type of medical insurance."

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