BSc (Hons), MBBS (Hons), MD, FRCP, SFHEA
30 years of experience
Carmarthen, SA33 5NT
(+2 more)
9 connections in healthcare
Skill endorsed
by Mr Peter Cnudde, Dr. Syed Hassan
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
Contact
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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.
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General Medical Council
No. 4202624
University of London
Medicine
Graduated 1995
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)
New appointment
£240Follow-up appointment
£140Bancyfelin, Carmarthen, United Kingdom, SA33 5NT
Lamberts Road, Swansea, United Kingdom, SA1 8FD
Bryngwyn Mawr, Dafen, United Kingdom, SA14 8QF
Areas of expertise
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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.
He was very thorough and explained everything to me and gave great advice on going forward with my lungs.

Thank you - lots of good progress today
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.

Thank you so much
Left very happy with the outcome on my grandmothers health after her treatment with professor lewis

I am glad you and your mum felt happy
So please need to add somebody that understands and it makes you feel good. And so professional. And accredit to his perfession

Really nice of you thank you
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.

Thank you- so pleased to hear this. Bringing in partners and loved ones into the consultation always helps everyone.
Absolutely brilliant Explained everything about my illness ,,,no rushing

Thank you- never rush!
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 .

Thank you for these nice and considerate words.
Appreciated his diagnosis and recommendations

Thank you and it’s always a discussion and recommendations- never instructions or orders
A great appointment. Good news and good fun.

This is great- I’m glad you enjoyed!
Dr weired Edwards explained what I wanted to yer and he was first class

Thank you
Always great to discuss patients to oprimise their chest problems preoperatively
13 May 2026
Mr Peter Cnudde
Orthopaedic SurgeonDr Lewisis a well respected Physician with a wealth of knowledge and a reputation for providing great service to his patients
20 Jul 2025
Dr. Syed Hassan
Respiratory Doctor
Read articles from Professor Keir Edward Lewis explaining process of procedures and other important things you should know before choosing your provider.

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

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

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 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
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
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What are Professor Keir Edward Lewis working hours?
Professor Keir Edward Lewis is working Tuesday (13:30 - 18:00), Friday (14:00 - 18:00)
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Does Professor Keir Edward Lewis accept new patients?
Professor Keir Edward Lewis generally accepts new patients.
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