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Dr Siva MahendranConsultant Respiratory and Internal Medicine Specialist in South London
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Dr Siva Mahendran

Consultant Respiratory and Internal Medicine Specialist in South London and Central London

MBBS BSc FRCP PhD
GMC: 6104082

5.019reviewsReview

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Expert in:
Breathing problems
Cough
Chest infection
Coronavirus
Sleep apnoea
Asthma
Respiratory diseases
Chest CT
  • Information
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Professional statement

Dr Siva Mahendran is a highly regarded consultant physician specialising in respiratory and internal medicine. He practises at New Victoria Hospital and specialises in cough, breathing problems, chest infection, asthma, sleep disorders and COPD.


He was appointed a consultant at Kingston & Richmond NHS hospital in 2017, where he is the clinical lead in the management of asthma, pleural disorders and respiratory research. Dr Mahendran is also the Trust Chair of medicines management and in this and in other roles as led on numerous initiatives to enhance patient safety and improve healthcare services.


Dr Mahendran qualified in Medicine at University College London and has been on the specialist register for Respiratory Medicine since 2017. He completed higher training in Respiratory and Internal Medicine at London’s leading hospitals including the Hammersmith, Royal Brompton, Guys and St Thomas' and Kings College Hospitals. In 2023, Dr Mahendran was awarded a PhD in Respiratory Immunology reflecting his contributions in research and in conditions including Asthma and COPD.


Impressively, Dr Mahendran played a pivotal role as the principal investigator at Kingston for the landmark Covid-19 Recovery clinical trial, offering critical expertise to local clinical teams and guideline committees throughout the pandemic. Additionally, he has advanced skills in bronchoscopy and ultrasound-guided pleural procedures. As a Fellow of the Royal College of Physicians, Dr Mahendran is also an accredited examiner for the RCP’s postgraduate exams. 


Dr Mahendran also led a public webinar titled “Asthma Awareness,” aimed at patients with asthma in Kingston, which is freely available on YouTube.

Clinics

New Victoria Hospital
  • New Victoria Hospital profile image

    New Victoria Hospital

    South London, 184 Coombe Lane West, Kingston upon Thames, KT2 7EG,

    Medical insurances accepted

    I'm paying for myself

Credentials

Professional experience

  • 25 years of experience
  • Consultant Physician in Respiratory and Internal Medicine, New Victoria Hospital (present)
  • Consultant Physician in Respiratory and Internal Medicine, Kingston Private Health (present)
View more

Subspecialties

  • Asthma
  • Chest infections
  • Long COVID
  • Sleep disorders
  • Chronic bronchitis
View more

Professional memberships

  • British Society of Thoracic Radiologists
  • European Respiratory Society
  • UK Pleural Society
  • British Thoracic Society
  • Royal College of Physicians
View more

Education

  • BSc, Anatomy and Developmental Biology University College London (2001)
  • MBBS, University College Medical Schools (2004)
  • MRCP, Royal College Physicians (2007)
  • Specialist Certificate Respiratory, Royal College Physicians (2010)
  • FRCP, Royal College Physicians (2018)
  • PhD, Respiratory Immunology, King's College of London (2023)
View more

Teaching posts

  • Examiner of Royal College of Physicians
  • Trainer in ultrasound and pleural procedures
  • Undergraduate tutor and examiner
View more

Publications and conferences

  • https://www.researchgate.net/profile/Siva-Mahendran

Prizes and awards

  • £20,000 Grant, Elizabeth Franklin Moore & Star Foundation (2024)
  • Quality Improvement, Kingston Hospital (2023)
  • Best Poster prize, Medical Education, RCP (2020)
  • Clinical Teaching Excellence Award, GKT Medical Schools (2015)
View more

Languages spoken

  • English
Registration number: 6104082

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

19 reviews

5.0

Review this doctor
  • Would you recommend this doctor?
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  • I had a very positive experience with Dr Mahendran at The New Victoria Hospital. From the beginning of the consultation, he took the time to listen carefully and patiently, making sure he fully understood my symptoms and concerns. He explained my condition in a very clear and thorough way, including what the symptoms mean, how they should be treated, and the reasoning behind the recommended treatment plan. I appreciated that he did not rush through the consultation and made sure everything was
    11 May 2026

    J.L.

    Verified patient
  • Very approachable and professional. Identified the main problem and promptly arranged appropriate investigations and interventions to address this, on the background of a complex recent medical history. Communicated effectively with other healthcare professionals looking after my case and forwarded results.
    28 April 2026

    A.D.

    Verified patient
  • Dr Mahendran was very thorough, listened carefully to my history. He gave excellent advice which has helped me enormously and within days my symptoms improved radically. I have no hesitation in recommending him to others.
    16 February 2026

    S.F.

    Verified patient
  • Dr Mahendran was very thorough, listened carefully to my history. He gave excellent advice which has helped me enormously and within days my symptoms improved radically. I have no hesitation in recommending him to others.
    16 February 2026

    S.F.

    Verified patient
  • I had an excellent experience with Dr Mahendran. He was incredibly thorough, taking the time to listen to all my concerns and explain everything in detail without making me feel rushed. It’s rare to find a physician who combines such high-level expertise with a genuine bedside manner. ​Additionally, I have to give a special mention to his secretary, Karen. She went above and beyond making the entire administrative process so easy and always kept me updated with results and appointments.
    9 February 2026

    K.S.

    Verified patient
  • Dr Mahendran combines the qualities of a fine clinician with rare gentility. He is so easy to talk to and all my concerns faded away.
    5 January 2026

    W.R.

    Verified patient
  • I had excellent appointments with Dr Mahendran. He listened to what I had to say and was happy to take time to explain and explore the questions that I had. I left fully understood what the problem was and what we could do to address it.
    3 December 2025

    M.C.

    Verified patient
  • We saw Dr Mahendran at the New Vic. He was very professional, caring and obviously a good clinician. Would recommend!
    29 November 2025

    G.G.

    Verified patient
  • I found Dr Mahendran to be excellent. He communicated clearly and efficiently. I had three tests in two days at New Victoria, and within a week we agreed on a clear plan for my ongoing treatment. I recoomend him whole heartedly!
    28 November 2025

    J.O.

    Verified patient
  • I found Dr Mahendran to be highly professional, thorough and easy to deal with throughout my consultations. He explained everything in a level of detail that was easy for me to understand. I wouldn’t hesitate to use Dr Mahendran again and would highly recommend him to others.
    21 November 2025

    G.W.

    Verified patient
View all reviews

Treatments

The doctor is expert in

Asthma

Breathing problems

Chest CT

Chest infection

Coronavirus

Cough

Respiratory diseases

Sleep apnoea

The doctor also specialises in:

Abnormal chest X-ray

Atypical pneumonia

Bronchiectasis

Bronchiolitis

Bronchoscopy

Chest X-ray

Chest pain

Chronic bronchitis

Chronic cough

Chronic obstructive pulmonary disease (COPD)

Frequently Asked Questions

What is Dr Siva Mahendran's specialty?

Dr Siva Mahendran is a consultant specialising in Respiratory Medicine, with extensive experience in assessing and treating patients within this field.

Which conditions and treatments does Dr Siva Mahendran specialise in?

Dr Siva Mahendran is a respiratory Medicine Specialist who provides assessment and treatment for Breathing problems, Cough, Chest infection, Coronavirus, Sleep apnoea, Asthma, Respiratory diseases, Chest CT, Sleep disorders, Chronic obstructive pulmonary disease (COPD), Chest pain and Pneumonia. During your consultation, you will be informed of the most suitable options following a personalised evaluation.

How many years of experience does Dr Siva Mahendran have?

Dr Siva Mahendran has 25 years of professional experience as a consultant respiratory Medicine Specialist, providing specialist assessment and treatment in this medical field.

What do patients say about Dr Siva Mahendran?

Patients give a rating of 5.0 out of 5 to Dr Siva Mahendran, a score considered excellent. This average is based on 19 verified patient reviews, reflecting the experience of those who have attended an appointment.

Are Dr Siva Mahendran's reviews verified?

Yes. All Dr Siva Mahendran'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 Siva Mahendran practise?

Dr Siva Mahendran practices in the following locations:

  • South London at 184 Coombe Lane West, Kingston upon Thames, KT2 7EG
  • South London at Level 7, Esher Wing, Hospital, Galsworthy Rd, Kingston upon Thames
  • Central London at Central London, London WC2N 5DU, UK

In-person consultations are available at these locations as a Respiratory Medicine.

How can I book an appointment with Dr Siva Mahendran?

You can book an appointment with Dr Siva Mahendran 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 Siva Mahendran see NHS patients?

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

Does Dr Siva Mahendran offer private appointments?

Yes, Dr Siva Mahendran offers private appointments for patients seeking flexible and direct access to a consultant respiratory Medicine Specialist.

Does Dr Siva Mahendran offer online consultations?

Yes, Dr Siva Mahendran offers online consultations. You can book an appointment directly from this page by selecting the date and time that suit you best. Personalised assistance is also available by calling the number displayed on this page.

Does Dr Siva Mahendran accept insurance?

At the moment, Dr Siva Mahendran offers consultations on a private, self-pay basis only.

What is Dr Siva Mahendran's availability?

Dr Siva Mahendran'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 Siva Mahendran offer?

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

What languages does Dr Siva Mahendran speak?

Dr Siva Mahendran is a respiratory Medicine Specialist who offers consultations in English.

How is Dr Siva Mahendran selected to appear on this platform?

All doctors listed on Top Doctors, including Dr Siva Mahendran, 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.

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New Victoria HospitalSouth London, 184 Coombe Lane West, Kingston upon Thames, KT2 7EG,
Payment methodSelf-paying
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