Guide to Selecting a London Cardiologist
The best private cardiologist for you is one with the right subspecialty for your condition, strong academic credentials, and an active NHS practice at a specialist cardiac centre. These details are rarely obvious from a website or directory listing, so knowing what to check before you book can make a real difference to your care. |
Choosing a heart specialist is one of the more important healthcare decisions many people will make. Whether you have been told you have a narrowed heart valve, have been experiencing chest pain or breathlessness, or have been advised to have a small hole in the heart assessed, the cardiologist you see will shape your diagnosis, your treatment options, and ultimately how confident you feel about the road ahead. London has a great many cardiologists in private practice, and at first glance their profiles can look remarkably similar.
Dr Charis Costopoulos is a Consultant Interventional Cardiologist and Clinical Lead for Structural Heart Intervention at Royal Papworth Hospital in Cambridge, one of the UK's leading specialist heart centres. Having trained at Cambridge, Hammersmith Hospital, and the San Raffaele Institute in Milan, he now sees patients privately at One Welbeck in London, where he treats conditions ranging from coronary artery disease to complex heart valve problems. In this guide, he shares what he believes patients should really be looking for when choosing a private cardiologist in London, including the signs of expertise that are easy to miss.
Cost is understandably part of the decision for many people too. If you would like a clearer picture of fees before you book, our separate article on the average cost of private cardiologist consultation in London explains what to expect. This guide focuses on the other half of the question: how to judge whether a cardiologist is the right person to look after your heart.
Why does the choice of cardiologist matter?
Cardiology is a broad specialty. A cardiologist may spend most of their working week reading heart scans, managing heart rhythm problems, fitting pacemakers, or performing procedures through the blood vessels. All are highly trained doctors, but their day-to-day experience can differ enormously.
A well-matched cardiologist will order the right tests, interpret them accurately, and explain the findings in plain language. If treatment is needed, they will either provide it themselves or know exactly who should.
Choosing well at the start can save time, avoid unnecessary repeat tests, and give you a single trusted point of contact throughout your care. That continuity matters, particularly for older patients with valve disease who may need monitoring over many years.
What are the different types of cardiologist?
Most cardiologists see a range of general heart problems, but each also has a particular area of expertise.
Subspecialty | What they focus on | Typical conditions |
Interventional cardiology | Procedures performed through the blood vessels, usually via the wrist or groin | Angina, coronary artery disease, heart attacks requiring angioplasty and stents |
Structural heart intervention | Minimally invasive repair or replacement of heart valves and closure of holes in the heart | Aortic stenosis (TAVI), mitral regurgitation (MitraClip), PFO closure |
Electrophysiology | The heart's electrical system and rhythm | Atrial fibrillation, palpitations, pacemakers, ablation |
Cardiac imaging | Detailed scans of the heart's structure and function | Assessment using echocardiography, cardiac MRI, and CT |
Heart failure | Long-term management of a weakened heart muscle | Cardiomyopathy, fluid retention, breathlessness |
If you already know your diagnosis, look for a cardiologist whose subspecialty matches it. If you are at the stage of investigating symptoms, a consultant with broad diagnostic experience and access to a full range of tests is a sensible starting point. A good cardiologist will always refer you on if your condition falls outside their area of expertise.
Which credentials should every patient check?
Some checks are straightforward and should be part of every patient's research. These form the minimum standard you should expect.
GMC Specialist Register: every consultant cardiologist practising in the UK should be on the General Medical Council's Specialist Register for cardiology. You can search the register online for free.
Consultant status: check that the doctor holds, or has held, a substantive consultant post. This indicates they have completed specialist training and work independently at the most senior level.
Training background: where a cardiologist trained, and whether they completed fellowships at recognised centres in the UK or abroad, tells you a great deal about the breadth of their experience.
Clinic registration: the clinic or hospital where you are seen should be registered with the Care Quality Commission (CQC), which inspects healthcare providers in England.
These details confirm a cardiologist is properly qualified, but not how experienced they are with complex cases. For that, Dr Costopoulos suggests looking deeper.
Why does an active NHS practice matter?
When asked what patients most often get wrong when choosing a private cardiologist, Dr Costopoulos is clear about what he would prioritise himself. "If I were a patient," he says, "I would opt for a cardiologist that works in a reputable clinic and who also has a busy NHS practice in a highly specialist cardiac centre."
In his view, this combination reflects more than credentials alone. It indicates that a cardiologist has genuine expertise in dealing with not only common heart problems but also more complex cardiovascular conditions.
Why does a specialist cardiac centre matter?
Specialist cardiac centres treat large numbers of patients, including those with the most complicated and high-risk conditions. Many receive referrals from other hospitals when a case is beyond what a general unit can manage. A consultant working in this environment sees a volume and variety of cases that is difficult to match in purely private practice.
That experience builds clinical judgement. It means the cardiologist has seen how conditions behave in unusual circumstances, has managed complications when they arise, and works daily alongside cardiac surgeons, imaging specialists, anaesthetists, and specialist nurses. Decisions about complex treatment, such as whether a patient is better suited to TAVI or open heart surgery, are often made by this kind of multidisciplinary heart team.
How do I find out where a cardiologist practises in the NHS?
This is one of the details Dr Costopoulos believes is not obvious from a website or directory listing. "In my opinion, they should look if and at which centre their NHS practice is," he explains. Some private profiles mention NHS roles prominently, while others do not mention them at all.
To find out, you can:
Read the cardiologist's full biography on their own website, the clinic's website, or their hospital profile.
Search the name of the NHS trust alongside the cardiologist's name to find their NHS consultant listing.
Check whether they hold a leadership role, such as clinical lead for a particular service, which signals senior standing within a specialist team.
Ask directly when booking. A clinic should be happy to tell you where the consultant works in the NHS.
What do academic credentials tell you about a cardiologist?
The second detail Dr Costopoulos highlights is a cardiologist's overall academic record. Patients often overlook this, yet academic work offers useful insight into how a doctor thinks and practises.
Look for:
Higher research degrees such as an MD or PhD, which involve several years of original research.
Peer-reviewed publications, which show the cardiologist contributes to the evidence that guides treatment worldwide.
Awards and invited lectures, which indicate recognition from other specialists in the field.
Teaching and training roles, which suggest the cardiologist is trusted to pass on their skills to the next generation of doctors.
A cardiologist who is research active tends to stay closely up to date with new evidence, clinical trial results, and changing guidelines. For patients, this means treatment recommendations are more likely to reflect the very latest understanding of what works. Dr Costopoulos, for example, completed his PhD at Cambridge in 2017, has published more than 50 peer-reviewed papers, and received a Young Investigator of the Year award, alongside his clinical work.
How much experience should a cardiologist have with my condition?
Beyond general credentials, it is reasonable to ask how much experience a cardiologist has with the particular test or procedure you may need. Experience matters in any specialty, but it is especially relevant for procedures such as coronary angiography, angioplasty, TAVI, and other structural interventions.
Useful indicators include how long the cardiologist has been practising at consultant level and roughly how many relevant procedures they have performed. Dr Costopoulos has been a consultant since 2019 and has performed hundreds of angiograms and structural heart interventions, as well as investigating and treating hundreds of patients with a wide range of cardiovascular conditions.
Experienced cardiologists are used to these questions and should answer them openly. You may also find independent performance information through the Private Healthcare Information Network (PHIN), which publishes data on many private consultants in the UK.
How do I judge whether a clinic is reputable?
The clinic where you are seen is part of the picture too. Dr Costopoulos places importance on a cardiologist working in a reputable clinic as well as a specialist NHS centre. A well-equipped private clinic can make a meaningful difference to your experience, particularly when it comes to how quickly you receive answers.
Things to consider include:
On-site diagnostics: can ECGs, echocardiograms, exercise tests, and heart rhythm monitoring be carried out in the same place, ideally on the same day?
Advanced imaging: is cardiac CT or MRI available if needed?
Procedural facilities: if you need angiography or another procedure, where would it be performed, and by whom?
Integrated diagnostic centres can shorten the time between a first consultation and a clear diagnosis, which is often a great relief for anxious patients and their families.
What practical factors should I weigh before booking?
Once you have a shortlist of suitably qualified cardiologists, practical factors will help you make the final decision.
Do I need a GP referral or insurance approval?
Most private cardiologists accept self-funding patients without a GP referral, although a referral letter is always helpful as it gives the consultant important background. If you have private medical insurance, check with your insurer before booking. Many policies require a GP referral and only cover consultants on their recognised list, and some have limits on outpatient costs.
How quickly should I expect to be seen?
Ask how soon you can be seen and how quickly any tests or procedures could follow. A short wait for the first appointment helps less if investigations then take weeks to arrange.
Which questions should I ask at my first appointment?
Many patients find it helpful to bring a written list of questions, and to bring a family member or friend for support. The following questions can help you understand both your condition and the cardiologist's approach.
What do you think is causing my symptoms, and how certain are you?
What are my treatment options, including the option of no treatment for now?
What are the risks and expected benefits of each option for someone in my situation?
How often do you perform this procedure, and where?
Will my case be discussed with a wider heart team?
What recovery should I expect, and who do I contact if I have concerns afterwards?
Which common mistakes should I avoid?
Bringing together Dr Costopoulos's advice and the most frequent concerns patients raise, these are the pitfalls worth avoiding:
Relying on directory listings alone. Listings tend to look similar and rarely show where a cardiologist practises in the NHS or the depth of their academic work.
Choosing on availability only. The first available appointment is not always with the most suitable specialist for your condition.
Overlooking subspecialty. A rhythm specialist and a structural heart specialist bring very different expertise.
Summary
Finding the right cardiologist does not need to be overwhelming. Start by confirming the essentials: specialist registration, consultant status, and a subspecialty that matches your needs. Then look for the details that genuinely set specialists apart, namely an active NHS practice at a highly specialist cardiac centre, a strong academic record, and work in a reputable, well-equipped clinic. Together, these give you the best indication that a cardiologist can manage both common and more complex heart conditions safely and effectively.
Dr Charis Costopoulos combines all of these qualities. As Clinical Lead for Structural Heart Intervention at Royal Papworth Hospital, a consultant since 2019 with hundreds of angiograms and structural interventions behind him, and a Cambridge-trained clinician-researcher with more than 50 published papers, he offers patients specialist-centre expertise in the comfort of a private London setting. When he sees patients, he takes time to explain each diagnosis clearly and agree on a treatment plan that reflects each person's priorities, whether that involves TAVI, MitraClip, PFO closure, angioplasty, or ongoing monitoring.
If you have been experiencing symptoms such as chest pain, breathlessness, dizziness, or palpitations, or have been told you have a heart valve problem, please do not wait. Book a consultation with Dr Costopoulos to receive a thorough assessment and clear, compassionate advice about the best next steps for your heart health.
About Dr Charis Costopoulos
Dr Charis Costopoulos is a highly regarded Consultant Interventional Cardiologist based in the UK, currently serving as the Clinical Lead for Structural Heart Intervention at the world-renowned Royal Papworth Hospital in Cambridge.
Clinical Expertise & Services
Dr Costopoulos specialises in both general and interventional cardiology, focusing on the diagnosis and treatment of complex heart conditions.
Conditions Treated: Coronary artery disease, chest pain (angina), heart failure, valvular heart disease, palpitations, breathlessness, and hypertension.
Procedures Performed:
Coronary Interventions: Angioplasty and stent insertion to treat blocked arteries.
Structural Heart Procedures: Transcatheter Aortic Valve Implantation (TAVI), MitraClip (for leaky mitral valves), and Patent Foramen Ovale (PFO) closure.
Diagnostic Tests: Echocardiography, coronary angiography, and 24-hour blood pressure monitoring.
Professional Background & Education
Education: He graduated with distinction from the University of Cambridge (MB BChir) in 2006 and later completed a PhD there (2017) focusing on biomechanical forces in coronary atherosclerosis.
Specialist Training: He underwent extensive training in North West London, including Hammersmith Hospital, and completed a prestigious fellowship in coronary and structural intervention at the San Raffaele Scientific Institute in Milan, Italy.
Research: An active researcher, he has published over 50 peer-reviewed papers in leading journals like the European Heart Journal and was awarded the Young Investigator of the Year award in 2017 for his work on vascular biology.
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