Doctify logo
For providers
Provider Login

Professor Keir Edward Lewis

BSc (Hons), MBBS (Hons), MD, FRCP, SFHEA​

Respiratory Doctor, General (Internal) Medicine

30 years of experience

Carmarthen, SA33 5NT

(+2 more)

9 connections in healthcare

Skill endorsed

by Mr Peter Cnudde, Dr. Syed Hassan

4.99

/5

(271 reviews)

30 years of experience

Carmarthen, SA33 5NT

(+2 more)

9 connections in healthcare

Skill endorsed

by Mr Peter Cnudde, Dr. Syed Hassan

Areas of expertise

All
Reviews
Skill Endorsements
Obstructive Sleep Apnoea (OSA)
106
Breathlessness
84
2
CPAP Machine
58

Contact

Book


Expert in:

About Professor Keir Edward Lewis

Professor Keir Lewis is a highly respected Consultant in Respiratory and General Internal Medicine, known for his compassionate, patient-centred care. Based in South and West Wales, he leads respiratory services across multiple NHS hospitals and also sees private patients at clinics including Werndale Hospital. Patients travel from across Wales to see him for his expertise in conditions such as chronic cough, breathlessness, asthma, COPD, sleep apnoea, and respiratory failure.

He has attracted over £27M in grant and has co-authored over 200 papers, 4 textbooks and natioal guidelines, he ahs advised international respirtaory organisations ans Wales and UK Governements. With over two decades of experience and a degree in Psychology as well as Medicine, Professor Lewis is recognised for his gentle, thoughtful approach particularly valued by patients dealing with anxiety or complex breathing problems. He is frequently consulted for difficult cases and is a trusted authority in respiratory care.

As the founder of several award-winning services, he works closely with multidisciplinary teams to deliver advanced treatment options, often beyond standard guidelines. His leadership has helped develop innovative services for pulmonary rehabilitation, smoking cessation, home monitoring and home-based ventilation.

Outside the clinic, Professor Lewis plays an active role in education, mentoring, and community health initiatives. He co-founded the Wales Orphan and Rare Lung Disease Charity and is a Trustee / Non-Exec Diretcor for other charities. He regularly collaborates with national and international experts to improve research leading to better care. His commitment to his patients and the wider respiratory community sets him apart as a truly outstanding clinician.


Subspecialties

  • Sleep Medicine

Areas of expertise

All
Reviews
(551)
Skill Endorsements
(6)

Click the bar to read reviews or skill endorsements

Obstructive Sleep Apnoea (OSA)
106
Breathlessness
84
2
CPAP Machine
58
Cough
48
Tiredness (Fatigue)
43
Chronic Obstructive Pulmonary Disease (COPD)
34
Lung Function / Spirometry
32
Asthma
26
Wheezing
15
Chest Infection
12
Sleep Disorders
9
1
Bronchiectasis
10
Lung Disease
10
CT Scan (Computerised Tomography Scan)
9
CPAP Mask
7
Emphysema
5
Snoring Problems
5
Lung (Pulmonary) Fibrosis
4
Chronic Cough
4
Troublesome Cough
2
1
Sarcoidosis
3
Blood Testing and Results Interpretation
3
Pulmonary Embolism (Lung Blood Clot)
3
Automatic CPAP Machine
3
Pneumonia
2
Long COVID
2
Chest X-Ray
1
1
Sleep Apnoea
1
1
Stroke
1
Lung Cancer
1
Exercise Advice
1
Noisy Breathing
1
Rib Pain
1
Allergy Blood Tests
1
Respiratory Care
1
BiPAP Machine
1
Sleep Disturbance
1
Hypermobile Ehlers-Danlos Syndrome (hEDS)
1
Sibilant Rhonchi (Wheeze)
Pulmonary Hypertension
Right Ventricular Failure
Travel Auto CPAP Machine
Infectious Diseases
Nasal Mask
Full Face Mask
Refractory Cough
Sputum Tests
Set Pressure CPAP Machine
Overnight Oximetry
Bronchitis
Fitness To Fly Testing
BiPAP Face Mask
Mechanical Ventilation

Registered with

General Medical Council

No. 4202624


Education

University of London

Medicine

Graduated 1995


Qualifications

BSc (1st Class Hons) Psychology University of London (1993)

MB BS (Double Honours) University of London (1995)

MD in Sleep Apnoea, Cardiff University (2010)

MRCP (London) (1998)

FRCP (London) (2010)

Senior Fellowship Higher Education Academy (UK) (2019)


Languages spoken

  • English

Insurers

  • Healix Health Services
  • Bupa Fee Assured
  • Bupa
  • Allianz Worldwide Care
  • Cigna
  • AXA Health
  • Aviva Health
  • Benenden Health
  • Vitality

Fees

  • New appointment

    £240
  • Follow-up appointment

    £140
*May vary on location

Locations

Werndale Hospital (part of Circle Health Group)

Bancyfelin, Carmarthen, United Kingdom, SA33 5NT

4.94(84 reviews)

Opening hours

Monday
Tuesday
13:30 - 18:00
Wednesday
Thursday
Friday
Saturday
Sunday

Facilities

Wheelchair Accessible
Free Parking
View practice profile

Opening hours

Monday
Tuesday
13:30 - 18:00
Wednesday
Thursday
Friday
Saturday
Sunday

Facilities

Wheelchair Accessible
Free Parking
View practice profile

Sancta Maria Hospital

Lamberts Road, Swansea, United Kingdom, SA1 8FD

0.00(0 reviews)

Opening hours

Monday
Tuesday
Wednesday
Thursday
Friday
14:00 - 18:00
Saturday
Sunday

Prince Philip Hospital

Bryngwyn Mawr, Dafen, United Kingdom, SA14 8QF

0.00(0 reviews)

Opening hours

Monday - Friday
Saturday
Sunday

Areas of expertise

All
Reviews
Skill Endorsements
Obstructive Sleep Apnoea (OSA)
106
Breathlessness
84
2
CPAP Machine
58

Contact

Book

Reviews

AI Review Summary

This summary was created by AI based on recent reviews

Professor Keir Edward Lewis shows understanding and a professional approach, offering clear, informative explanations. He ensures patients feel heard, setting them at ease, and outlines findings, treatment options, and future pathways. Patients report feeling reassured, optimistic, and understanding their conditions after consultations. Recurring themes highlight his expertise with Obstructive Sleep Apnoea, breathlessness, cough, tiredness, and CPAP machine treatment.

5
verified patient
03 Jun 2026

He was very thorough and explained everything to me and gave great advice on going forward with my lungs.

Reply from Keir Edward Lewis
03 Jun 2026
avatar-image

Thank you - lots of good progress today

5
verified patient
03 Jun 2026

My improvement was explained thoroughly to me and what the current and previous positions were. Professor Lewis took time to ask questions and also give answers to my questions in an encouraging and sympathetic manner. I didn't feel rushed.

Reply from Keir Edward Lewis
03 Jun 2026
avatar-image

Thank you so much

5
verified patient
26 May 2026

Left very happy with the outcome on my grandmothers health after her treatment with professor lewis

Patient seen for:
Reply from Keir Edward Lewis
28 May 2026
avatar-image

I am glad you and your mum felt happy

5
verified patient
22 May 2026

So please need to add somebody that understands and it makes you feel good. And so professional. And accredit to his perfession

Reply from Keir Edward Lewis
22 May 2026
avatar-image

Really nice of you thank you

5
verified patient
21 May 2026

I saw Prof Lewis today in clinic and he was very supportive and professional. He explained everything clearly, made sure I am receiving the correct treatment, and took plenty of time explaining things to me without rushing. Prof Lewis also communicated with my partner and explained things to him which made him feel included in the consultation. In my opinion Prof Lewis is the best.

Reply from Keir Edward Lewis
25 May 2026
avatar-image

Thank you- so pleased to hear this. Bringing in partners and loved ones into the consultation always helps everyone.

5
verified patient
21 May 2026

Absolutely brilliant Explained everything about my illness ,,,no rushing

Reply from Keir Edward Lewis
22 May 2026
avatar-image

Thank you- never rush!

5
verified patient
20 May 2026

Professor Lewis was exceptionally helpful and approachable. He had a lovely bedside manner and nothing was too much trouble. The appointment was not at all rushed, and I was given ample opportunity to question and discuss .

Reply from Keir Edward Lewis
20 May 2026
avatar-image

Thank you for these nice and considerate words.

5
verified patient
20 May 2026

Appreciated his diagnosis and recommendations

Patient seen for:
Reply from Keir Edward Lewis
20 May 2026
avatar-image

Thank you and it’s always a discussion and recommendations- never instructions or orders

5
verified patient
20 May 2026

A great appointment. Good news and good fun.

Reply from Keir Edward Lewis
20 May 2026
avatar-image

This is great- I’m glad you enjoyed!

5
verified patient
20 May 2026

Dr weired Edwards explained what I wanted to yer and he was first class

Reply from Keir Edward Lewis
20 May 2026
avatar-image

Thank you

Your trust is our top concern, so providers can't pay to alter or remove reviews.
Learn more here

Skill Endorsements

Always great to discuss patients to oprimise their chest problems preoperatively

13 May 2026
Endorsed for
Breathlessness
Troublesome Cough
Sleep Disorders

Mr Peter Cnudde

Mr Peter Cnudde

Orthopaedic Surgeon
Is a colleague

Dr Lewisis a well respected Physician with a wealth of knowledge and a reputation for providing great service to his patients

20 Jul 2025
Endorsed for
Breathlessness
Chest X-Ray

Dr. Syed Hassan

Dr. Syed Hassan

Respiratory Doctor
I have looked after their patients
Professor Keir Edward Lewis logo

Get to know Professor Keir Edward Lewis

Most recent articles

Read articles from Professor Keir Edward Lewis explaining process of procedures and other important things you should know before choosing your provider.

Behind the scenes on a Covid-19 hospital ward

Behind the scenes on a Covid-19 hospital ward

Keir Lewis, who is a professor of respiratory medicine, has documented the pandemic at Prince Philip Hospital in Llanelli.

19 April 2020

bbc.co.uk

Meet The Team |  World Orphan and Rare Lung Disease

Meet The Team | World Orphan and Rare Lung Disease

The preservation and protection of good health for the public benefit, by promoting the awareness and understanding of rare lung disease in West Wales.

19 September 2025

joinusatworld.com

Tocilizumab in patients admitted to hospital with COVID-19 (RECOVERY): a randomised, controlled, open-label, platform trial

Tocilizumab in patients admitted to hospital with COVID-19 (RECOVERY): a randomised, controlled, open-label, platform trial

In this study, we aimed to evaluate the effects of tocilizumab in adult patients admitted to hospital with COVID-19 with both hypoxia and systemic inflammation.

01 May 2021

pmc.ncbi.nlm.nih.gov

Casirivimab and imdevimab in patients admitted to hospital with COVID-19 (RECOVERY): a randomised, controlled, open-label, platform trial

Casirivimab and imdevimab in patients admitted to hospital with COVID-19 (RECOVERY): a randomised, controlled, open-label, platform trial

Casirivimab and imdevimab are non-competing monoclonal antibodies that bind to two different sites on the receptor binding domain of the SARS-CoV-2 spike glycoprotein, blocking viral entry into host cells. We aimed to evaluate the efficacy and safety of casirivimab and imdevimab administered in combination in patients admitted to hospital with COVID-19.

12 February 2022

thelancet.com

FAQ

What are Professor Keir Edward Lewis's reviews like?

Professor Keir Edward Lewis's overall patient rating is 4.99 out of 5 stars on Doctify. This is based on 271 reviews.

What languages does Professor Keir Edward Lewis speak?

Professor Keir Edward Lewis speaks English

Where is Professor Keir Edward Lewis located?

Professor Keir Edward Lewis primarily practices at Werndale Hospital (part of Circle Health Group), located at Bancyfelin, Carmarthen, United Kingdom, SA33 5NT
See more locations

What are Professor Keir Edward Lewis working hours?

Professor Keir Edward Lewis is working Tuesday (13:30 - 18:00), Friday (14:00 - 18:00)

Find where Professor Keir Edward Lewis operates today

Does Professor Keir Edward Lewis accept new patients?

Professor Keir Edward Lewis generally accepts new patients.

Get in touch with this specialist to enquire as a new patient