Doctify logo
For providers
Provider Login

Dr Nigel G Stephens

BSC, PhD, M.B, B.S, FRCP

Cardiologist

Live bookings available

37 years of experience

London, W1G 8BJ

(+3 more)

24 connections in healthcare

Skill endorsed

by Dr Aamir Ali, Dr. Syed Hassan and 6 other professionals

4.97

/5

(547 reviews)

Live bookings available

37 years of experience

London, W1G 8BJ

(+3 more)

24 connections in healthcare

Skill endorsed

by Dr Aamir Ali, Dr. Syed Hassan and 6 other professionals

Areas of expertise

All
Reviews
Skill Endorsements
Echocardiogram
130
Atrial Fibrillation
125
High Blood Pressure
73

Contact

Book online


Expert in:

About Dr Nigel G Stephens

Nigel Stephens was recruited from Cambridge University, where he was a Lecturer in Medicine, to lead a newly built Cardiac Centre in Northwick Park Hospital over 20 years ago. This centre became successful and high-performing, with excellent outcomes. He brings these same qualities to his private practice, providing accessible and personalised care for people with heart disease. He is particularly committed to helping patients return to an active life following episodes of serious illness, so they can enjoy the benefits of physical activity and exercise.

Dr. Stephens oversees all aspects of cardiology care for patients 16 and older, including valvular heart disease, hypertension, cardiomyopathy, heart failure, and cardiac rhythm abnormalities. He also offers interventional procedures such as coronary angioplasty and stenting. He has strong and reliable communications with a group of colleagues who are based at Northwick Park Hospital; referrals to specialist cardiac surgery or electrophysiology services are discussed weekly in a meeting that Dr. Stephens chairs himself.

Dr. Stephens provides comprehensive care for patients with complex cardiovascular conditions, including the use of rotational atherectomy and mitral balloon valvuloplasty. He has extensive experience in managing cardiac problems in athletes, having helped establish a sports cardiology service at the Olympic Medical Institute. Over 10 years, this team saw more than 1,000 athletes referred with cardiac issues. Dr. Stephens is particularly interested in assessing apparently abnormal findings in athletes' hearts and determining whether it is safe for them to continue playing competitive sports if they have established heart disease. This has become an increasingly complex issue as common cardiovascular diseases tend to occur later in life while many people still wish to take part and compete in sporting activities.


Subspecialties

  • Interventional Cardiology
  • Heart Muscle Disease/Cardiomyopathy
  • Preventative Cardiology

Areas of expertise

All
Reviews
(954)
Skill Endorsements
(6)

Click the bar to read reviews or skill endorsements

Echocardiogram
130
Atrial Fibrillation
125
High Blood Pressure
73
Chest Pain
70
Arrhythmia (Irregular Heartbeat)
70
ECG (Electrocardiogram)
46
CT Coronary Angiogram
45
Palpitations
43
Breathlessness
41
Cardiovascular Disease
33
1
Exercise Stress Test
29
Dizziness
18
Coronary Artery Disease
18
Heart Scan
16
Stress Echocardiogram
16
Heart Valve Problems
15
Coronary Angiography
14
Angina
10
24 Hour Blood Pressure Monitor
9
Atrial Flutter
9
Cardio-Pulmonary Exercise Testing
5
2
Bradycardia
7
Cardiac MRI (CMR)
7
Sports Cardiology
7
Hypertension (High Blood Pressure)
6
Coronary Stent Insertion
6
ECG Holter Monitor
6
Tachycardia
5
Heart Bypass Surgery
5
Angioplasty
5
Hypertrophic Cardiomyopathy
4
Calcium Coronary Score
4
High Cholesterol
3
Low Blood Pressure
3
Pacemaker Surgery
3
Cardiomyopathy
3
Heart Failure
3
Heart Murmurs
3
Oedema
3
Congestive Heart Failure
2
Ventricular Fibrillation
2
Bubble Contrast Echocardiography
2
Ventricular Septal Defects (VSD)
2
Unstable Angina
2
Heart Muscle Disease
2
Cardiac Shock Wave Therapy (CSWT)
2
Supraventricular Tachycardia (SVT)
2
Interventional Cardiology
1
1
Heart Blocks
2
Cardiac Screening in Sport
2
Loss of Consciousness
1
Pleural Effusion
1
Sports Medicine
1
Angiogram
1
Atherosclerosis
1
Referral Letter
1
Heart Attack
1
Atrial Septal Defects (ASD)
1
Variable Blood Pressure
1
Postural Orthostatic Tachycardia Syndrome (POTS)
1
Cardioversion
1
Intravascular Ultrasound
1
Neurocardiogenic Syncope (Vasovagal)
1
Pericarditis
1
Fainting (Syncope)
1
Postural Hypotension
1
Implantable Loop Recorder (ILR)
1
Stenting Procedures
1
Anxiety
1
Right Heart Catheterisation
Echocardiogram (Cardiac Ultrasound)
DVLA Assessments
Complex Coronary Interventions
Valvuloplasty
Endomyocardial Biopsy
Transoesophageal Echocardiogram
Myocardial Perfusion Scan
Acute Coronary Syndrome (ACS)
Autonomic Mediated Syncope
Rotablation (Coronary Arteries)
Valvular Heart Disease
Pressure Wire Study (Coronary Angiography)
Spontaneous Coronary Artery Dissection
Dobutamine Stress Echocardiogram

Registered with

General Medical Council

No. 3286403


Education

University of London

Medicine

Graduated 1988


Qualifications

MBBS (Univ. Lond.)

PhD (Univ. Lond.)

FRCP (RCP Lond)


Publications

Read publications and papers written by this specialist.

30 / 01 / 1999

PubMed

Published in Mortality in the CHAOS trial

05 / 10 / 1999

PubMed

Published in A common variant of the endothelial nitric oxide synthase (Glu298-->Asp) is a major risk factor for coronary artery disease in the UK


Languages spoken

  • English

Insurers

  • Benenden Health
  • General and Medical
  • Bupa Fee Assured
  • Freedom Health Insurance
  • The Exeter
  • Simply Health (Dental)
  • Healix Health Services
  • Cigna
  • Saga Health Insurance
  • Bupa
  • WPA
  • Allianz Worldwide Care
  • AXA Health
  • Aviva Health
  • Vitality

Fees

  • New appointment

    £250
  • Follow-up appointment

    £175
*May vary on location

Locations

HCA Healthcare UK The Harley Street Clinic

35 Weymouth Street, London, United Kingdom, W1G 8BJ

4.75(3271 reviews)

Opening hours

Monday
Tuesday
Wednesday
Thursday
Friday
08:00 - 11:00
Saturday
Sunday

Facilities

Paid Parking
View practice profile

Opening hours

Monday
Tuesday
Wednesday
Thursday
Friday
08:00 - 11:00
Saturday
Sunday

Facilities

Paid Parking
View practice profile

The Clementine Churchill Hospital (part of Circle Health Group)

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

4.80(2255 reviews)

Opening hours

Monday
Tuesday
Wednesday
Thursday
08:30 - 13:00
Friday
Saturday
Sunday

Facilities

Wheelchair Accessible
Free Parking
View practice profile

The Institute of Sport Exercise & Health (ISEH)

170 Tottenham Court Road, London, United Kingdom, W1T 7HA

4.85(191 reviews)

Opening hours

Monday
Tuesday
Wednesday
Thursday
17:00 - 19:00
Friday
Saturday
Sunday

88 Harley Street Consulting Rooms, part of HCA Healthcare

88 Harley Street, London, United Kingdom, W1G 7HR

0.00(0 reviews)

Opening hours

Monday - Friday
Saturday
Sunday

Areas of expertise

All
Reviews
Skill Endorsements
Echocardiogram
130
Atrial Fibrillation
125
High Blood Pressure
73

Contact

Book online

Reviews

AI Review Summary

This summary was created by AI based on recent reviews

Dr Nigel G Stephens is a professional, friendly, and reassuring presence for his patients. He explains medical issues and next steps clearly, including specific procedures such as echocardiograms and stress ECGs. Patients highlight his extensive expertise, especially his understanding of heart conditions in active individuals and the provision of long-term care. Many patients seek his expertise for echocardiograms and managing conditions like atrial fibrillation.

5
verified patient
06 Jun 2026

If you are looking for a cardiology specialist who actually listens, see Dr Nigel Stephens. He is friendly and down-to-earth. I was worried a heart issue might side line my training, but Dr Stephens used his deep knowledge of cycling to keep me moving forward. As a masters cyclist, he completely understood my desire to keep racing as an amateur. He managed my health while fully supporting me to continue riding at my current level. It feels great to have a doctor who supports your athletic passion!"

Patient seen for:
5
verified patient
06 Jun 2026

Dr Steven’s was very personable and friendly from the moment he introduced himself. Once in his surgery he showed his thorough knowledge of my situation and his profession. He left me with a clear understanding of my options and whilst a little taken aback, I felt my life was in safe hands.

Patient seen for:
5
verified patient
01 Jun 2026

Dr. Stephens takes a careful, thoughtful and proactive approach to my care. He gives me a lot of confidence.

5
verified patient
01 Jun 2026

Friendly, clear talking. A pleasure to deal with.

Patient seen for:
5
verified patient
01 Jun 2026

Dr Stephens is an excellent consultant who explained everything clearly and thoroughly

5
verified patient
31 May 2026

Fantastic, great experience

Patient seen for:
5
verified patient
30 May 2026

Managed to be calm and clear, while at the same time organising the plan with great speed and efficiency

5
verified patient
18 May 2026

Always come away from consultations with Dr Stephens with positive feelings, he always explains the situation fully and concisely and puts my mind at rest - he has been 100% accurate with his forecast of my treatment and recovery, Can't recommend him highly enough!

Patient seen for:
5
verified patient
18 May 2026

Mr Stephen’s has looked after me for nearly two decades.I am always confident that he will look after me.

Patient seen for:
5
verified patient
18 May 2026

I've seen Dr Stephens over the past 26 years and always found him to be professional, explain clearly his diagnosis and what he recommends as the right treatment. That was the same during my last appointment with him.

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

Skill Endorsements

I have worked with Dr Nigel Stephens for many years and consider him an excellent colleague and clinician. He is a highly skilled interventionist with outstanding clinical judgement and technical expertise.

18 Feb 2026
Endorsed for
Cardiovascular Disease
Sports Medicine
Interventional Cardiology

Dr Aamir Ali

Dr Aamir Ali

Cardiologist
Is a colleague

Dr Stephens is a well respected cardiologist with a wealth of knowledge and a reputation for providing great service to his patients

13 Jul 2025
Endorsed for
Cardiac Shock Wave Therapy (CSWT)
Cardio-Pulmonary Exercise Testing

Dr. Syed Hassan

Dr. Syed Hassan

Respiratory Doctor
I have looked after their patients

An excellent cardiologist

01 Nov 2024
Endorsed for
Cardio-Pulmonary Exercise Testing
Cardiac Shock Wave Therapy (CSWT)

PF

Professor Albert Ferro

General (Internal) Medicine
We trained together

Great clinician

05 Jan 2024
Endorsed for
Musculoskeletal Medicine
Sports Injury

Prof. Dr. Mike Loosemore

Prof. Dr. Mike Loosemore

Sport & Exercise Medicine Doctor
Dr Nigel G Stephens logo

Get to know Dr Nigel G Stephens

Videos
Articles

Most recent videos

Explore videos from Dr Nigel G Stephens explaining process of procedures and other important things you should know before choosing your provider.

Meet Dr Nigel Stephens

Meet Dr Nigel Stephens

Consultant Cardiologist Dr Nigel Stephens talks about himself and his practice

08 July 2024

Heart to heart with Dr Nigel Stephens

Heart to heart with Dr Nigel Stephens

Legro chats to good friend and team mate Dr Nigel Stephens about the athletes heart and mitral valve surgery.

12 March 2024

youtube.com

Dr Nigel Stephens

Dr Nigel Stephens

Episode 30"If I only had a Heart...."Dr Nigel Stephens is a consultant cardiologist and a pretty decent track cyclist too (World Championship silver and bronze medalist .National Age Group Champion on Track)

12 March 2024

youtube.com

Doctify Answers | What is Atrial Fibrillation? Cardiologist Dr Nigel Stephens Explains

Doctify Answers | What is Atrial Fibrillation? Cardiologist Dr Nigel Stephens Explains

Doctify Answers | What is Atrial Fibrillation? Cardiologist Dr Nigel Stephens Explains00:00 - Introduction00:26 - What is Atrial Fibrillation?1:05 - Symptoms...

17 July 2024

youtu.be

Doctify Answers | What is an Echocardiogram (ECG)? Cardiologist Dr Nigel Stephens Explains

Doctify Answers | What is an Echocardiogram (ECG)? Cardiologist Dr Nigel Stephens Explains

Doctify Answers | What is an Echocardiogram (ECG)? Cardiologist Dr Nigel Stephens Explains00:00 - Introduction00:14 - What is an ECG?2:00 - How does it work?...

17 July 2024

youtu.be

Most recent articles

Read articles from Dr Nigel G Stephens explaining process of procedures and other important things you should know before choosing your provider.

FAQ

What are Dr Nigel G Stephens's reviews like?

Dr Nigel G Stephens's overall patient rating is 4.97 out of 5 stars on Doctify. This is based on 547 reviews.

What languages does Dr Nigel G Stephens speak?

Dr Nigel G Stephens speaks English

Where is Dr Nigel G Stephens located?

Dr Nigel G Stephens primarily practices at HCA Healthcare UK The Harley Street Clinic, located at 35 Weymouth Street, London, United Kingdom, W1G 8BJ
See more locations

What are Dr Nigel G Stephens working hours?

Dr Nigel G Stephens is working Thursday (08:30 - 13:00, 17:00 - 19:00), Friday (08:00 - 11:00)

Find where Dr Nigel G Stephens operates today

Does Dr Nigel G Stephens accept new patients?

Dr Nigel G Stephens generally accepts new patients.

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