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  • Dr Kasi Subbiah

Dr Kasi Subbiah

Consultant Endocrinologist in Belfast

MBBS, MRCP, FRCP, CCT in Endocrinology & Diabetes
GMC: 7590611
5.052 reviewsReview
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Expert in:
Thyroid disorders
Erectile dysfunction
Adrenal gland disorders
Pituitary gland disorders
Hyperparathyroidism
Diabetes
Weight loss
Women's health
  • Information
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  • Content
  • Reviews
  • Treatments

Professional statement

Dr Kasi Subbiah is a Consultant Endocrinologist (FRCP, MRCP) with consultant-level experience across some of the UK's leading NHS trusts, including tertiary training at King's College Hospital, London. His focus is simple: get to the right diagnosis and the right plan fast, so patients aren't left waiting months for answers or watching a manageable condition drift.


His practice covers the full range of endocrine and metabolic disease — GLP-1 and tirzepatide therapy, hypogonadism, thyroid and adrenal disorders, pituitary and neuroendocrine conditions, osteoporosis and metabolic bone disease, complex type 1 and type 2 diabetes, insulin pump and hybrid closed-loop technology and continuous glucose monitoring. Within the NHS, Dr Subbiah has built and run rapid-access advice and triage services specifically to cut delays and get patients to the right care sooner — that same approach drives his private practice.


Every patient leaves the first consultation with a clear diagnosis and a concrete next step — no unnecessary appointments, no drift. Dr Subbiah works closely with other specialists where needed, so care moves forward instead of stalling in referral queues. The aim is straightforward: sort out the problem, get you feeling better, and do it quickly.

Clinics

E-Consultation
  • E-Consultation profile image

    E-Consultation

    Belfast, UK, Belfast, BT1

    Medical insurances accepted

    I'm paying for myself
    Bupa
    AXA
    AVIVA
    Cigna
    WPA
    Simply Health
    Allianz

Credentials

Professional experience

  • 27 years of experience
  • Consultant Endocrinologist, e-Consultation
  • Consultant Endocrinologist, Dundonald Consulting Rooms
  • Consultant Endocrinologist, Royal Victoria Hospital
View more

Subspecialties

  • Osteoporosis
  • Pituitary gland disorders
  • PCOS
  • Hormone health
  • Hormone replacement therapy
  • Menopause
View more

Education

  • MBBS
  • MRCP
  • FRCP
  • CCT in Endocrinology & Diabetes
View more

Languages spoken

  • English
Registration number: 7590611

Content

Photos

    • Image gallery
    • Image gallery

Health content

Thyroid disorders

Article

An overview of thyroid disorders

In this article, esteemed consultant endocrinologist, Dr Kasi Subbiah, details when people...

Other information

https://www.endocrineconsult.com/

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

52 reviews

5.0

Review this doctor
  • Would you recommend this doctor?
  • Treatment of the doctor
  • Treatment of the staff
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  • The speed and efficiency of your care is a breath of fresh air compared to what I’ve typically experienced in the NHS. Beyond that, the personalized attention and detail you provide are exceptional. I’m truly grateful for the level of dedication you bring to your practice—we need more clinicians with your enthusiasm. That proactive, 'can-do' attitude is often missing in healthcare today, but you embody it. I’ll certainly be returning, Kasi. Thank you so much!
    17 October 2026

    S.M.

    Verified patient
  • Is great and very helpful doctor and he is very patient ..
    14 October 2026

    T.S.

    Verified patient
  • Brillaint doctor , made sure and explained my conditions in great detail. Would highly rate this consultant. Thank you for your time .
    14 October 2026

    C.M.

    Verified patient
  • The doctor was extremely thorough, attentive, and listened carefully to all my concerns.
    14 October 2026

    J.E.

    Verified patient
  • Dr Kasi is so calming and made me feel reassured. He listens and never made me feel rushed chatting to him. I appreciate all his knowledge and help and feel that I am in safe hands. Many thanks!
    14 October 2026

    A.B.

    Verified patient
  • 14 October 2026

    V.G.

    Verified patient
  • 14 October 2026

    V.G.

    Verified patient
  • 13 October 2026

    V.G.

    Verified patient
  • Attending the endocrine clinic was very pleasant experience,Dr Subbiah was very pleasant and made me feel very comfortable during the appointment, he came up with a new plan to adjust my insulin, which seems to be effective,Dr Subbiah was Very good at thoroughly explaining everything to me so I went away feeling confident. Their staff were all very efficient and there was no waiting time at the Clinic.
    13 October 2026

    P.M.

    Verified patient
  • Dr Kasi reviewed my issues, medication & we set a clear plan going forward. Very kind & helpful - thank you!
    13 October 2026

    S.R.

    Verified patient

Treatments

The doctor is expert in

Adrenal gland disorders

Diabetes

Erectile dysfunction

Hyperparathyroidism

Pituitary gland disorders

Thyroid disorders

Weight loss

Women's health

The doctor also specialises in:

Amenorrhoea

CGM (continuous glucose monitoring)

Childhood obesity

Cholesterol

Cushing's syndrome

Diabetes diet

Diabetic foot

Diabetic nephropathy

Diabetic neuropathy (diabetes pain)

Diseases of the pituitary and hypothalamus

Frequently Asked Questions

What is Dr Kasi Subbiah's specialty?

Dr Kasi Subbiah is a specialist in Endocrinology, Diabetes & Metabolism, with extensive experience in assessing and treating patients within this field.

Which conditions and treatments does Dr Kasi Subbiah specialise in?

Dr Kasi Subbiah is a Endocrinologist who provides assessment and treatment for Thyroid disorders, Erectile dysfunction, Adrenal gland disorders, Pituitary gland disorders, Hyperparathyroidism, Diabetes, Weight loss, Women's health, Amenorrhoea, Hirsutism, Hormone replacement therapy (HRT), Premature menopause, Menopause, Menstrual disorders, Polyendocrine metabolic ovarian syndrome (PMOS), Hyperprolactinaemia, Hypertension (high blood pressure), Hypoparathyroidism, Hypogonadism, Male infertility, Testosterone replacement therapy, Osteoporosis, Diabetic nephropathy, Diabetic neuropathy (diabetes pain), CGM (continuous glucose monitoring), Insulin pump, Fatty liver, Insulin resistance, Ketogenic diet, Cholesterol and Lipid disorders. During your consultation, you will be informed of the most suitable options following a personalised evaluation.

How many years of experience does Dr Kasi Subbiah have?

Dr Kasi Subbiah has 27 years of professional experience as a specialist in Endocrinology, Diabetes & Metabolism, providing specialist assessment and treatment in this medical field.

What do patients say about Dr Kasi Subbiah?

Patients give a rating of 5.0 out of 5 to Dr Kasi Subbiah, a score considered excellent. This average is based on 52 verified patient reviews, reflecting the experience of those who have attended an appointment.

Are Dr Kasi Subbiah's reviews verified?

Yes. All Dr Kasi Subbiah's reviews come from verified patients who have attended either an in-person or an e-Consultation appointment. We use a system that ensures authenticity and prevents fake reviews. Some profiles may also display reviews from other platforms, which follow their own verification policies, with the source always clearly indicated.

Where does Dr Kasi Subbiah practise?

Dr Kasi Subbiah practices in the following locations:

  • Belfast at Belfast, UK
  • Belfast at 1 St Johns Wood Park, Belfast BT16 1RS, UK

In-person consultations are available at these locations as a Endocrinology, Diabetes & Metabolism.

How can I book an appointment with Dr Kasi Subbiah?

You can book an appointment with Dr Kasi Subbiah directly from this page by selecting the time that suits you best. Alternatively, you can call the phone number shown if you prefer personalised assistance.

Does Dr Kasi Subbiah see NHS patients?

Many specialists featured on Top Doctors also hold NHS positions. However, appointments arranged for Dr Kasi Subbiah through this platform are private, either self-pay or covered by private medical insurance.

Does Dr Kasi Subbiah offer private appointments?

Yes, Dr Kasi Subbiah offers private appointments for patients seeking flexible and direct access to a specialist in Endocrinology, Diabetes & Metabolism.

Does Dr Kasi Subbiah offer online consultations?

At the moment, Dr Kasi Subbiah does not offer online consultations. You can book an in-person appointment from this page or call +44 2896026823. When calling, please mention that you are a Top Doctors patient.

Does Dr Kasi Subbiah accept insurance?

Dr Kasi Subbiah works with the following private medical insurance providers: Bupa, AXA, AVIVA, Cigna, WPA, Simply Health, Allianz, CS Healthcare, Vitality, The Exeter Friendly, Pru Health, Groupama, April, Freedom, National Assurance, General Medical, Saga, Healix, Legal & General Insurance, Health-online, Benenden Health , Alliance Health Group, Police Mutual and Aetna. If your insurer is not listed, you may contact the practice directly to confirm your coverage.

What is Dr Kasi Subbiah's availability?

Dr Kasi Subbiah's availability depends on the appointment slots open at any given time. On this page, you can check current availability, and if no slots are shown, you can request an appointment or contact the practice directly.

What payment methods does Dr Kasi Subbiah offer?

You can pay for your consultation with Dr Kasi Subbiah using the following methods: Self-paying.

What languages does Dr Kasi Subbiah speak?

Dr Kasi Subbiah is a Endocrinologist who offers consultations in English.

How is Dr Kasi Subbiah selected to appear on this platform?

All doctors listed on Top Doctors, including Dr Kasi Subbiah, undergo our rigorous selection process. Only one in five specialists meets the required standards to be included.
Discover Top Doctors' rigorous medical selection process.
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.

Request now: The appointment management service is free

E-ConsultationBelfast, UK, Belfast, BT1
Payment methodSelf-paying

Important: Dr Subbiah also offers Face to Face Appointments at Dundonald Consulting Rooms. Please select from the drop down and follow the steps to request an appointment with him.

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