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Dr Gareth Rosser

MBBS

Cardiologist

18 years of experience

Harrow, HA1 3RX

(+5 more)

19 connections in healthcare

Skill endorsed

by Mr Simon Harris, Dr. Sunil Patel and 4 other professionals

4.86

/5

(23 reviews)

18 years of experience

Harrow, HA1 3RX

(+5 more)

19 connections in healthcare

Skill endorsed

by Mr Simon Harris, Dr. Sunil Patel and 4 other professionals

Areas of expertise

All
Reviews
Skill Endorsements
Interventional Cardiology
7
Coronary Stent Insertion
5
Coronary Angiography
4

Contact

Book


Expert in:

About Dr Gareth Rosser

Dr Gareth Rosser is a Consultant Cardiovascular Surgeon with over the 13 years of experience in the field. He works within the Harefield health service, catering to patients with heart failure 24 hours a day, throughout the year, showing dedication to his craft.

Gareth gained his medical degree at University College London, after which he passed his postgraduate examines, enabling him to join the Royal College of Physicians in 2009. After this, he undertook his specialist training on the North West Thames cardiology rotation, well known for training top specialists worldwide, allowing him to find his niche in Interventional Cardiology. Upon completion of training on his rotation, he was appointed Consultant at Harefield Hospitals.

Gareth is also active in the research field, keeping him up to date on the latest technology and also authored numerous articles in The Lancet. He is also Honorary Senior Lecturer at Imperial College London.


Subspecialties

  • Heart Failure
  • Interventional Cardiology

Areas of expertise

All
Reviews
(25)
Skill Endorsements
(8)

Click the bar to read reviews or skill endorsements

Interventional Cardiology
7
Coronary Stent Insertion
5
Coronary Angiography
4
Echocardiogram (Cardiac Ultrasound)
4
Irregular Heartbeat (Arrhythmia)
3
Breathlessness
2
Congestive Heart Failure
2
Chest Pain
2
Palpitations
2
ECG (Electrocardiogram)
1
Coronary Artery Disease
1
Angioplasty
1
High Blood Pressure (Hypertension)
1
Kidney Disease
1
Atrial Fibrillation
1
Transoesophageal Echocardiogram
1
24 Hour Blood Pressure Monitor
1
Kidney Transplantation (Assessment & Follow-Up)
1
Valvuloplasty

Registered with

General Medical Council

No. 6164422


Education

University of London

Medicine

Graduated 2007


Qualifications

Education

MB BS 2007 University of London

Memberships

Royal College of Physicians

British Cardiovascular Intervention Society

British Society of Echocardiography

Fellow, Royal Society of Medicine


Languages spoken

  • English

Locations

The Clementine Churchill Hospital (part of Circle Health Group)

The Clementine Churchill Hospital, Sudbury Hill, Harrow, United Kingdom, HA1 3RX

4.80(2278 reviews)

Opening hours

Monday - Friday
Saturday
Sunday

Facilities

Wheelchair Accessible
Free Parking
View practice profile

Opening hours

Monday - Friday
Saturday
Sunday

Facilities

Wheelchair Accessible
Free Parking
View practice profile

Bishops Wood Hospital (part of Circle Health Group)

Rickmansworth Road, Northwood, London, United Kingdom, HA6 2JW

4.84(717 reviews)

Opening hours

Monday - Friday
Saturday
Sunday

Facilities

Wheelchair Accessible
Free Parking
View practice profile

Wimpole Street Consulting Rooms and Diagnostic Centre

77 - 79 Wimpole Street, London, United Kingdom, W1G 9RU

4.92(419 reviews)

Opening hours

Monday - Friday
Saturday
Sunday

Facilities

Wheelchair Accessible
Paid Parking
View practice profile

Harefield Private Consulting Rooms

Hill End Road, Harefield, Uxbridge, United Kingdom, UB9 6JH

4.93(347 reviews)

Opening hours

Monday - Friday
Saturday
Sunday

Facilities

Wheelchair Accessible
Free Parking
View practice profile

Spire Thames Valley Hospital

Wexham Street Wexham, Bucks, United Kingdom, SL3 6NH

4.83(251 reviews)

Opening hours

Monday - Friday
Saturday
Sunday

Princess Margaret Hospital

39-42 Osborne Road, Windsor, United Kingdom, SL4 3SJ

5.00(3 reviews)

Opening hours

Monday - Friday
Saturday
Sunday

Areas of expertise

All
Reviews
Skill Endorsements
Interventional Cardiology
7
Coronary Stent Insertion
5
Coronary Angiography
4

Contact

Book

Reviews

AI Review Summary

This summary was created by AI based on recent reviews

Dr Gareth Rosser provides reassuring, professional, and clear communication with patients. Patients commend Dr Rosser's expertise in procedures including angioplasty with stenting, heart murmur assessment, and quadruple heart bypass surgery; his swift diagnoses lead to life-preserving outcomes. He is described as kind, attentive, and helpful, offering continuous care, encouragement for active lifestyles, and demonstrating excellent responsiveness after treatment and during annual reviews. Most prominent themes from patient feedback highlight his work in diagnostic cardiac imaging and cardiac interventions.

5
verified patient
01 Jun 2026

Superb treatment and excellent aftercare

Patient seen for:
5
verified patient
18 Feb 2026

I saw Dr Rosser as I was concerned about a heart murmur he explained things well and reassured me

Patient seen for:
5
verified patient
18 Feb 2026

Very friendly and helpful

Patient seen for:
5
verified patient
15 Feb 2026

The quality of care I received from Dr Rosser is something I feel compelled to share. As a cardiologist, he possesses a remarkable ability to make patients feel truly heard and respected. He has a very calm demeanour and took the time to explain everything clearly, which made a stressful situation significantly easier to navigate. It is rare to find a specialist who combine such a high level of skill with genuine compassionate care. Dr Rosser is a great asset to circle health group and medical association . I feel fortunate to have been under his care, and I would not hesitate to recommend him to others seeking a cardiologist.

Patient seen for:
5
verified patient
14 Feb 2026

My experience with Gareth Rosser has been first class. Kind, thoughtful and extremely knowledgeable which is exactly what you need when you are experiencing heart related issues. His responsiveness after my procedure is also superb and I would highly recommend him

Patient seen for:
5
verified patient
13 Feb 2026

Dr Gareth Rosser was caring, attentive and reassuring at a time of considerable concern. His expertise and clear assessment of the situation led to a swift and thorough diagnosis, resulting in a successful, life-preserving outcome. My family and I are deeply grateful for everything he did at the time and for the continued care and reassurance he provides through my annual reviews.

5
verified patient
12 Feb 2026

Dr Rosser was my cardiologist consultant from 2022 and under his care and guidance I ended up having a quadruple heart bypass not long afterwards. His expertise and treatment was outstanding, empathetic and supportive. I have no hesitation in recommending him to others

5
verified patient
12 Feb 2026

From my introduction to Dr Rosser through to my discharge and return to full health, I have had only the very best care and treatment. My coronary artery desease was diagnosed in 2019 and we attempted an urgent angiplasty to stent the arteries. It was not a success so bypass surgery was undertaken in January 2020. After 12 months I had some failure in the minor grafts, for which Dr Rosser rassured me we would fix by stents. In September 2021 I underwent a very successful angioplasty with 3 stents inserted and full blood flow returned. Since then my health has returned to full strength, with hiking and cycling forming a huge part of my life. In 2025 I trekked to Everest Base Camp at 5640meters, with Dr Rosser's encouragement. He encourages all patients to live full lives. Dr Rosser, didn't just safe my life, he restored it! He is the best!

5
verified patient
11 Feb 2026

I have just had my first year check up after my surgery with Dr Rosser and as always he was great with everything including his reassuring manner and his professional approach.

Patient seen for:
5
verified patient
28 Nov 2022

Dr Rosser was professional and friendly, providing clear information and the opportunity to ask questions.

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Skill Endorsements

Excellent Cardiologist with a very friendly nature in addition

10 Feb 2026
Endorsed for
Interventional Cardiology
Congestive Heart Failure

Mr Simon Harris

Mr Simon Harris

General Surgeon
Is a colleague

Gareth is a highly experienced, specialist cardiologist with particular interest in intervention.

09 Oct 2025
Endorsed for
Interventional Cardiology
Congestive Heart Failure

Dr. Sunil Patel

Dr. Sunil Patel

Respiratory Doctor
I have referred patients to them

I have worked with Dr Rosser over many years and always been impressed with his diligence, clinical skills and top quality communication. An excellent general cardiologist and heart failure specialist.

21 Jul 2025
Endorsed for
Kidney Transplantation (Assessment & Follow-Up)
Kidney Disease

Dr Christopher Lawrence

Dr Christopher Lawrence

Nephrologist
Is a colleague

Excellent colleague

21 Jul 2025
Endorsed for
24 Hour Blood Pressure Monitor
Angioplasty

DM

Dr Wala Mattar

Cardiologist
Is a colleague

FAQ

What are Dr Gareth Rosser's reviews like?

Dr Gareth Rosser's overall patient rating is 4.86 out of 5 stars on Doctify. This is based on 23 reviews.

What languages does Dr Gareth Rosser speak?

Dr Gareth Rosser speaks English

Where is Dr Gareth Rosser located?

Dr Gareth Rosser primarily practices at The Clementine Churchill Hospital (part of Circle Health Group), located at The Clementine Churchill Hospital, Sudbury Hill, Harrow, United Kingdom, HA1 3RX
See more locations

Does Dr Gareth Rosser accept new patients?

Dr Gareth Rosser generally accepts new patients.

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