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Dr Peter O'Callaghan

Cardiology Cardiff

Dr Peter O'Callaghan

16 years of experience

3,190+
Patients seen
16
Years in practice
10
Publications
1
Languages spoken

PROFILE SUMMARY

About Dr Peter O'Callaghan at a glance

Dr Peter O'Callaghan is a Cardiology practitioner based in Cardiff, United Kingdom, practising at UAB Barcelona Teaching Hospital. They have 38+ years of clinical experience. Procedures focus on cardiac consultation, echocardiogram, stress test, holter monitor, coronary angiography. Educated at UAB Barcelona (MD, 2006). Serves patients in Cardiff, United Kingdom and the surrounding area.

About

At Spire Cardiff Hospital I provide a comprehensive heart rhythm service including the investigation and management of patients with palpitations, blackouts and cardiac arrest survivors or their family members.  I am an expert in the management of atrial fibrillation, Wolff Parkinson White Syndrome, supraventricular tachycardias (SVTs), the ablation of tachycardias and the implantation of pacemakers and defibrillators.

I am the lead clinician for heart rhythm and pacing services at the University Hospital of Wales, Cardiff, providing tertiary referral services for South East Wales, a referral population of 1.3 million.

Prior to my consultant appointment in 2001 I trained at Massachusetts General Hospital, Boston and St George's Hospital, London having entered the speciality of electrophysiology in 1994. My main interests lie in managing tachycardias and implantation of devices to prevent blackouts or sudden death (pacemakers and defibrillators).

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

— Dr Peter O'Callaghan

Education & training

  1. 2000–2006 MD · Medicine and Surgery
    UAB Barcelona, Cardiff (GB)
  2. 2006–2010 Residency · Cardiology
    Universitat de Barcelona, Cardiff (GB)

Career & appointments

  1. 2010-09–2011-08 Junior consultant
    UAB Barcelona Teaching Hospital — Cardiology

Licenses & insurance

Medical licenses

GB — Organización Médica Colegial de España (OMC)
#GB-632319 active · expires 2028-12-31

Board certifications

European Board of Cardiology
#EB-EB536181 · issued 2011 · renewal 2021
Malpractice insurance: HDI Global · 4,000,000 EUR coverage · No claims on file

Procedures performed

ProcedureCodeLifetime count
Cardiac consultation 99244 2,127
Echocardiogram 93306 2,616
Stress test 93015 702
Holter monitor 93225 1,451
Coronary angiography 93454 1,740
PCI / coronary stent 92928 1,986
Pacemaker implantation 33208 1,809

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 30 min in_clinic 720.00 EUR
Holter monitor 60 min in_clinic 360.00 EUR
Coronary angiography 90 min in_clinic 480.00 EUR
PCI / coronary stent 30 min in_clinic 240.00 EUR

Office, team & in practice

Peter O'Callaghan in consultation
IN OFFICE
Peter O'Callaghan with the team
WITH TEAM
Peter O'Callaghan at a conference
CONFERENCE

Videos

introduction · 103s
Meet Peter O'Callaghan

Research & publications

h-index: 5 · i10: 11

  1. Long-term follow-up of Cardiology across GB
    Peter O'Callaghan, et al. · Circulation, 2026
    DOI: 10.6253/euroclin.2026.0 · PMID: 31497279 · cited by 173
  2. Validation of clinical scoring in Cardiology
    Peter O'Callaghan, et al. · Journal of Cardiovascular Electrophysiology, 2025
    DOI: 10.1411/euroclin.2025.1 · PMID: 35987183 · cited by 7
  3. Long-term follow-up of Cardiology across GB
    Peter O'Callaghan, et al. · Circulation, 2024
    DOI: 10.6924/euroclin.2024.2 · PMID: 39924178 · cited by 169
  4. Validation of clinical scoring in Cardiology
    Peter O'Callaghan, et al. · Journal of Cardiovascular Electrophysiology, 2023
    DOI: 10.2637/euroclin.2023.3 · PMID: 31978708 · cited by 75

Invited talks

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

Awards & memberships

Awards

  • 🏆 Top-rated Cardiology — Cardiff · EuroClinics Patient Choice · 2025 · regional

Society memberships

  • European Society of Cardiology (ESC) — Member · Since 2011
  • American Heart Association (AHA) — Member · Since 2011
  • EAPCI — Member · Since 2011
  • European Union of Medical Specialists (UEMS) — Member · Since 2011

Articles by this doctor

  • Patient education Patient guide to Cardiology
  • Awareness When should you see a cardiology?

For international patients

Coordinator
Patient liaison · dr.peter.ocallaghan.1@euroclinics.example

Location

1 tag

Patient reviews

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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 Peter O'Callaghan's Areas of Specialty

Each specialty below reflects the conditions and procedures Dr Peter O'Callaghan 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 Peter O'Callaghan is one of 1,358 cardiology doctors indexed in United Kingdom. Browse cardiology doctors in United Kingdom →

LOCAL CARE CONTEXT

Why local healthcare in Cardiff 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 Cardiff 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 Cardiff 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 Peter O'Callaghan specialise in?

    Peter O'Callaghan specialises in Cardiology in Cardiff, GB. 38 years of clinical experience.

  • What conditions does Peter O'Callaghan treat?

    Peter O'Callaghan treats conditions within Cardiology. View the full conditions-treated list on the profile.

  • Where does Peter O'Callaghan practise?

    Peter O'Callaghan practises in Cardiff, GB. The profile page lists all practice addresses, phone numbers, and clinic affiliations.

  • What languages does Peter O'Callaghan speak?

    Peter O'Callaghan speaks English.

  • How do I book an appointment with Peter O'Callaghan?

    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.

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