Padraig G. O'neill
Distinguished in Arrhythmias

Dr. Padraig G. O'neill

Cardiology
CommonSpirit Health
Mercy Medical Plaza - Sacramento, CA (North Lobby)
3941 J St, 
Sacramento, CA 
Accepting New Patients
Offers Telehealth

Distinguished in Arrhythmias
CommonSpirit Health
Mercy Medical Plaza - Sacramento, CA (North Lobby)
3941 J St, 
Sacramento, CA 
OverviewInsuranceLocationsClinical ResearchSimilar Doctors

Overview

The right treatment at the right time.

Dr. O'neill is rated as a Distinguished provider by MediFind in the treatment of Arrhythmias. His top areas of expertise are Atrial Fibrillation, Arrhythmias, Sick Sinus Syndrome, Cardiac Ablation, and Pacemaker Implantation.

His clinical research consists of co-authoring 30 peer reviewed articles and participating in 2 clinical trials. MediFind looks at clinical research from the past 15 years. In particular, he has co-authored 4 articles and participated in 1 clinical trial in the study of Arrhythmias.

Graduate Institution
Univ College Galway-Ireland
Specialties
Cardiology
Licenses
Internal Medicine in CA
Board Certifications
Internal Medicine
Internal Medicine (Sub: Cardiovascular Disease)
Internal Medicine (Sub: Clin Cardiac Electrophysiolog
Fellowships
Baylor College of Medicine
Hospital Affiliations
Mercy General Hospital
Mercy San Juan Medical Center
Methodist Hospital Of Sacramento
Languages Spoken
English
Gender
Male

Insurance

Accepted insurance can change. Please verify directly with the provider.

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Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Alignment Health Plan
  • MEDICARE MAPD
  • MEDICARE SNP
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
Anthem
  • EPO
  • HMO
  • POS
  • PPO
Blue Shield of California
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE-MEDICAID PLAN
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
  • PPO
Change Healthcare
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
Cigna
  • EPO
  • HMO
  • PPO
Health Care Services Corporation
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
  • PPO
Health Net

Accepted plan types not found. Please verify directly with the provider.

HMSA
  • HMO
  • PPO
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Managed Medicaid
  • OTHER MANAGED MEDICAID
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
Medicare
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE PART D
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
Western Health Advantage
  • HMO
  • INSURANCE PLAN
  • MEDICARE DISCOUNT CARD
  • MEDICARE MAPD
View 11 Less Insurance Carriers -

Locations

Mercy Medical Plaza - Sacramento, CA (North Lobby)
3941 J St, Sacramento, CA 95819
Call: 916-736-2323

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers 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.


2 Clinical Trials

Left Atrial Posterior Wall Isolation in Conjunction With Pulmonary Vein Isolation Using the Cryoballoon for Treatment of Persistent Atrial Fibrillation (PIVoTAL) - IDE Trial
Left Atrial Posterior Wall Isolation in Conjunction With Pulmonary Vein Isolation Using the Cryoballoon for Treatment of Persistent Atrial Fibrillation (PIVoTAL) - IDE Trial
Enrollment Status: Unknown
Publish Date: September 06, 2023
Intervention Type: Procedure, Device
Study Phase: Not Applicable
A Clinical Feasibility Study to Evaluate the Safety and Performance of Low-Energy Unpinning Termination Therapy in Patients With VT
A Clinical Feasibility Study to Evaluate the Safety and Performance of Low-Energy Unpinning Termination Therapy in Patients With VT
Enrollment Status: Terminated
Publish Date: October 10, 2022
Intervention Type: Device
Study Phase: Not Applicable
View 1 Less Clinical Trial

30 Total Publications

Concomitant Cryoballoon Pulmonary Vein and Posterior Wall Isolation In Persistent Atrial Fibrillation: Results from the Left Atrial Posterior Wall Isolation In Conjunction with Pulmonary Vein Isolation Using the Cryoballoon for Treatment of Persistent Atrial FibrilLation (PIVoTAL) IDE Trial.
Concomitant Cryoballoon Pulmonary Vein and Posterior Wall Isolation In Persistent Atrial Fibrillation: Results from the Left Atrial Posterior Wall Isolation In Conjunction with Pulmonary Vein Isolation Using the Cryoballoon for Treatment of Persistent Atrial FibrilLation (PIVoTAL) IDE Trial.
Journal: Heart rhythm
Published: June 28, 2025
View All 30 Publications
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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

Find Dr. O'neill's expertise for a condition
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    • Distinguished
    • Arrhythmias
      Dr. O'neill is
      Distinguished
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    • Atrial Fibrillation
      Dr. O'neill is
      Distinguished
      . Learn about Atrial Fibrillation.
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    • Atrial Tachycardia
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      Distinguished
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    • Atrioventricular Nodal Reentrant Tachycardia (AVNRT)
      Dr. O'neill is
      Distinguished
      . Learn about Atrioventricular Nodal Reentrant Tachycardia (AVNRT).
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    • Cardiac Ablation
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    • Familial Progressive Cardiac Conduction Defect
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      Distinguished
      . Learn about Familial Progressive Cardiac Conduction Defect.
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    View All 11 Distinguished Conditions
    • Advanced
    • Bidirectional Tachycardia
      Dr. O'neill is
      Advanced
      . Learn about Bidirectional Tachycardia.
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    • Cardiac Tamponade
      Dr. O'neill is
      Advanced
      . Learn about Cardiac Tamponade.
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    • Cardiomyopathy
      Dr. O'neill is
      Advanced
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    • Catecholaminergic Polymorphic Ventricular Tachycardia
      Dr. O'neill is
      Advanced
      . Learn about Catecholaminergic Polymorphic Ventricular Tachycardia.
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    • Ectopic Heartbeat
      Dr. O'neill is
      Advanced
      . Learn about Ectopic Heartbeat.
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    • Fainting
      Dr. O'neill is
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      . Learn about Fainting.
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    View All 10 Advanced Conditions
    • Experienced
    • Angina
      Dr. O'neill is
      Experienced
      . Learn about Angina.
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    • Aortic Valve Stenosis
      Dr. O'neill is
      Experienced
      . Learn about Aortic Valve Stenosis.
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    • Apoplexy
      Dr. O'neill is
      Experienced
      . Learn about Apoplexy.
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    • Arterial Embolism
      Dr. O'neill is
      Experienced
      . Learn about Arterial Embolism.
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    • Atherosclerosis
      Dr. O'neill is
      Experienced
      . Learn about Atherosclerosis.
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    • Brugada Syndrome
      Dr. O'neill is
      Experienced
      . Learn about Brugada Syndrome.
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    View All 22 Experienced Conditions
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