Expertise in
8
conditions

Mark D. O'neill

4th Floor North Wing, St Thomas' Hospital, 
London, ENG, GB 
Expertise in
8
conditions
4th Floor North Wing, St Thomas' Hospital, 
London, ENG, GB 

Overview

Mark O'neill practices practicing medicine in London, United Kingdom.

Mr. O'neill is highly rated in 8 conditions, according to our data. His clinical expertise encompasses Atrial Fibrillation, Arrhythmias, Ventricular Tachycardia, Familial Ventricular Tachycardia, and Cardiac Ablation.

He is actively involved in clinical research, co-authoring 165 peer reviewed articles and participating in 1 clinical trial.

Gender

Male

Locations

4th Floor North Wing, St Thomas' Hospital, London, ENG, United Kingdom
Other Locations
Guy's and St Thomas' Hospitals
London, ENG, United Kingdom

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Experts who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.

1 Clinical Trials

Evaluation of a Multi-electrode Linear Type Catheter (D-1368-01-SI) for Endocardial Ablation of Patients With Persistent Atrial Fibrillation (LME-167)
Evaluation of a Multi-electrode Linear Type Catheter (D-1368-01-SI) for Endocardial Ablation of Patients With Persistent Atrial Fibrillation (LME-167)
Enrollment Status: Completed
Publish Date: February 03, 2025
Intervention Type: Device
Study Phase: Not Applicable

165 Total Publications

Multi-modality evaluation of an extracardiac mass during ablation for typical atrial flutter.
Multi-modality evaluation of an extracardiac mass during ablation for typical atrial flutter.
Journal: The British journal of cardiology
Published: August 08, 2026

Frequently Asked Questions about Mark D. O'neill

Is Mark D. O'neill a top-rated expert for Cardiac Ablation?

MediFind is an objective health platform that identifies experts based on real-world data. Mark D. O'neill is classified as an Distinguished expert for Cardiac Ablation, meaning they are among the top experts in the country for this condition. This ranking is based on their volume of patients, published research, and peer connections.

Does Mark D. O'neill participate in research or clinical trials?

Yes. Mark D. O'neill has published 165 articles and abstracts on conditions like Cardiac Ablation. You can view a list of Mark D. O'neill's latest peer-reviewed publications and clinical trial participation on their profile to see if they are active in new treatments.

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

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