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Dr Alexander Sirker

Verified Cardiology London

Dr Alexander Sirker

15 years of experience 5.0 (25 verified reviews)

2,099+
Patients seen
15
Years in practice
7
Publications
1
Languages spoken

PROFILE SUMMARY

About Dr Alexander Sirker at a glance

Dr Alexander Sirker is a Cardiology practitioner based in London, United Kingdom, practising at Universitat de Barcelona Teaching Hospital. They have 29+ years of clinical experience. Procedures focus on cardiac consultation, echocardiogram, stress test, holter monitor, coronary angiography. Educated at Universitat de Barcelona (MD, 2007). Serves patients in London, United Kingdom and the surrounding area.

VERIFIED PHYSICIAN PROFILE · UPDATED MAY 2026

About

Dr Alexander Sirker works as a Consultant in Interventional and General Cardiology at University College London Hospitals (UCLH) and St Bartholomew's Hospital, London.

He is Clinical Lead (Head of Department) for Cardiology at University College London Hospitals. He is also an Honorary Associate Professor at University College London (UCL).

Dr Sirker trained in medicine at the University of Cambridge, graduating with First Class Honours in Physiology in 1994. He was awarded several prizes, an exhibition and three scholarships, then continued training at Cambridge University Clinical School, qualifying as a doctor in 1996 with a triple Distinction in the Final MB examinations.

His specialist training in Cardiology was undertaken at a number of leading cardiac centres, including the Royal Brompton, Harefield, and Guy's and St Thomas' Hospitals. His specific expertise in Interventional Cardiology was gained at King's College Hospital, London and during an international fellowship year at the Royal Jubilee Hospital, British Columbia, Canada – a pioneering centre in the use of radial access for angioplasty and stenting.

He has specific expertise in coronary angiography, angioplasty and stenting procedures. Other invasive and interventional procedures undertaken by Dr Sirker include pressure wire studies, intravascular ultrasound (IVUS), and rotational atherectomy. His particular interests in Interventional Cardiology include i) use of the radial artery (at the wrist) for ‘keyhole' access in diagnostic and therapeutic procedures and ii) complex coronary interventions, including treatment of bifurcation disease, calcified lesions and diseased bypass grafts.

With his broad background in General Adult Cardiology, Dr Sirker undertakes outpatient clinics at the main University College Hospital site, treating patients with conditions such as coronary artery disease, heart valve disease, high blood pressure and heart failure. He sees patients with symptoms including chest pain, breathlessness, palpitations, dizziness and loss of consciousness.

He also deals with pre-operative cardiac assessment prior to non-cardiac surgery and with cardiovascular risk assessment more generally.

He has formal national accreditation in echocardiography and has trained in cardiac CT. He is also an accredited specialist in General (Internal) Medicine.

He also has a strong interest in clinical risk reduction and has acted as the site lead at St. Bartholomew's Hospital for implementation of the new National Safety Standards for Invasive Procedures across all medical specialities.

Diseases, Medical Tests and Treatments


Heart Attack

Heart Valve Problems

High Blood Pressure

Loss of consciousness (Syncope)

Unstable Angina

Angina

Chest Pain

Dizziness

Valvular Heart Disease

Transthoracic echocardiography

12 lead ECG

Holter (ambulatory ECG)

Ambulatory BP monitoring

CT coronary angiography

Coronary angiography

Coronary angioplasty and stenting

“Evidence-based care tailored to each patient — taking the time to explain options and shared decisions.”

— Dr Alexander Sirker

Education & training

  1. 2001–2007 MD · Medicine and Surgery
    Universitat de Barcelona, London (GB)
  2. 2007–2011 Residency · Cardiology
    Universidad Complutense de Madrid, London (GB)
  3. 2011–2012 Fellowship · Subspecialty training
    AP-HP Paris, FR

Career & appointments

  1. 2011-09–2012-08 Junior consultant
    Universitat de Barcelona Teaching Hospital — Cardiology

Licenses & insurance

Medical licenses

GB — Organización Médica Colegial de España (OMC)
#GB-259386 active · expires 2028-12-31

Board certifications

European Board of Cardiology
#EB-D2D61855 · issued 2012 · renewal 2022
Malpractice insurance: AXA Healthcare Liability · 5,000,000 EUR coverage · No claims on file

Procedures performed

ProcedureCodeLifetime count
Cardiac consultation 99244 2,927
Echocardiogram 93306 120
Stress test 93015 1,110
Holter monitor 93225 2,163
Coronary angiography 93454 2,436
PCI / coronary stent 92928 1,082
Pacemaker implantation 33208 1,913

Services & pricing

ServiceDurationModalityPrice
New patient consultation (60m) 60 min in_clinic|telemed 240.00 EUR
Follow-up consultation (30m) 30 min in_clinic|telemed|phone 120.00 EUR
Stress test 90 min in_clinic 600.00 EUR
Holter monitor 120 min in_clinic 960.00 EUR
Coronary angiography 30 min in_clinic 840.00 EUR
PCI / coronary stent 90 min in_clinic 1,080.00 EUR

Office, team & in practice

Alexander Sirker
HEADSHOT
Alexander Sirker in consultation
IN OFFICE
Alexander Sirker with the team
WITH TEAM
Alexander Sirker at a conference
CONFERENCE

Videos

introduction · 90s
Meet Alexander Sirker

Research & publications

h-index: 20 · i10: 16

  1. Outcomes of Cardiology in adults — a multi-centre cohort
    Alexander Sirker, et al. · European Heart Journal, 2025
    DOI: 10.7750/euroclin.2025.0 · PMID: 33895576 · cited by 93
  2. European registry analysis of Cardiology outcomes
    Alexander Sirker, et al. · JACC, 2024
    DOI: 10.6927/euroclin.2024.1 · PMID: 30151733 · cited by 167
  3. Outcomes of Cardiology in adults — a multi-centre cohort
    Alexander Sirker, et al. · European Heart Journal, 2023
    DOI: 10.8120/euroclin.2023.2 · PMID: 31488094 · cited by 153
  4. European registry analysis of Cardiology outcomes
    Alexander Sirker, et al. · JACC, 2022
    DOI: 10.6538/euroclin.2022.3 · PMID: 34946092 · cited by 19

Invited talks

  • Practical updates in Cardiology European Annual Congress (Cardiology) · Vienna · 2024 · invited
  • Single-centre experience in Cardiology National Society Meeting · London · 2023 · oral abstract

Awards & memberships

Awards

  • 🏆 Top-rated Cardiology — London · EuroClinics Patient Choice · 2025 · regional
  • 🏆 Excellence in Patient Care · National Society · 2024 · national
  • 🏆 Young Investigator Award · European Society · 2023 · international

Society memberships

  • European Society of Cardiology (ESC) — Member · Since 2012
  • American Heart Association (AHA) — Member · Since 2012
  • EAPCI — Member · Since 2012
  • European Union of Medical Specialists (UEMS) — Member · Since 2012

Articles by this doctor

  • Patient education Patient guide to Cardiology 2026-03-03 · 10 min read
  • Awareness When should you see a cardiology? 2026-01-05 · 7 min read

For international patients

Coordinator
Patient liaison · dr.alexander.sirker@euroclinics.example
Accepted international insurance
Allianz Worldwide · AXA Global · BUPA Global · Cigna Global

Location

1 tag

Patient reviews

25 verified reviews
4.96
★★★★⯨
25 reviews
5★ 2
4★ 1
3★ 0
2★ 0
1★ 0
Bedside Manner
5.0
Knowledge
5.0
Wait Time
4.7
Staff Friendliness
5.0
Ease Of Appointment
4.9
Value For Money
4.9
Would Recommend Pct
98.0
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Recent reviews

  • ★★★★★ ✓ Verified
    Very thorough first visit — explained every step. Booking was easy and the staff were welcoming.
    Anna B.
  • ★★★★★ ✓ Verified
    Took time to listen and reviewed all my previous results. I would absolutely recommend.
    Marco V.
  • ★★★★☆ ✓ Verified
    Professional and knowledgeable. Wait on the day was a bit long, otherwise excellent.
    Helena F.

SPECIALTIES & PROCEDURES

Dr Alexander Sirker's Areas of Specialty

Each specialty below reflects the conditions and procedures Dr Alexander Sirker treats, with the size of the national pool of United Kingdom doctors offering the same care.

Cardiology

Heart-rhythm, coronary and structural-heart problems including chest pain, palpitations, hypertension and heart failure.

Dr Alexander Sirker is one of 1,358 cardiology doctors indexed in United Kingdom. Browse cardiology doctors in United Kingdom →

LOCAL CARE CONTEXT

Why local healthcare in London matters

Medical practice in United Kingdom is governed by country-specific licensing, professional standards, and patient-safety regulations. Practitioners listed here are registered with the relevant United Kingdom medical authority and operate within national rules on scope of practice, prescribing rights, and continuing professional development. Care delivered in London carries the additional benefits of local language support, in-person follow-up, and direct coordination with regional hospitals and labs. A verified profile means EuroClinics has cross-checked the practitioner or clinic against an official source (national medical register, public licence database, or the practitioner themselves), and that the data shown here matches that source as of the last verification date above.

Looking for additional providers? all doctors in London or all doctors in United Kingdom.

Frequently asked questions

Quick answers to the questions patients ask most. The same answers are surfaced to AI assistants via structured data.

  • What does Alexander Sirker specialise in?

    Alexander Sirker specialises in Cardiology in London, GB. 29 years of clinical experience.

  • What conditions does Alexander Sirker treat?

    Alexander Sirker treats conditions within Cardiology. View the full conditions-treated list on the profile.

  • Where does Alexander Sirker practise?

    Alexander Sirker practises in London, GB. The profile page lists all practice addresses, phone numbers, and clinic affiliations.

  • What languages does Alexander Sirker speak?

    Alexander Sirker speaks English.

  • How do I book an appointment with Alexander Sirker?

    Use the "Request a booking" button on the profile to send an appointment request. Most appointments are confirmed within 24 hours; many slots are bookable instantly.

  • What do patients say about Alexander Sirker?

    Alexander Sirker has a verified rating of 4.96/5 from 25 patient reviews. Read the most recent reviews on the profile page.

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