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    Last Updated: 10/30/2025

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    MediFind found 159 doctor with experience in Jervell Lange-Nielsen Syndrome (JLNS) near Bryn Mawr, PA. Of these, 116 are Experienced, 36 are Advanced and 7 are Distinguished.

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    159 providers found
      Experienced in Jervell Lange-Nielsen Syndrome (JLNS)
      Cardiac Electrophysiology | Thoracic Surgery | Cardiology
      Experienced in Jervell Lange-Nielsen Syndrome (JLNS)
      Cardiac Electrophysiology | Thoracic Surgery | Cardiology

      Main Line Healthcare

      830 Old Lancaster Rd, 
      Bryn Mawr, PA 
       (0.4 miles away)
      Languages Spoken:
      English

      Maribel Hernandez is a Cardiac Electrophysiologist and a Thoracic Surgeon in Bryn Mawr, Pennsylvania. Dr. Hernandez is rated as an Experienced provider by MediFind in the treatment of Jervell Lange-Nielsen Syndrome (JLNS). Her top areas of expertise are Atrial Fibrillation, Catecholaminergic Polymorphic Ventricular Tachycardia, Bidirectional Tachycardia, Ventricular Tachycardia, and Pacemaker Implantation.

      Experienced in Jervell Lange-Nielsen Syndrome (JLNS)
      Cardiac Electrophysiology | Cardiology
      Experienced in Jervell Lange-Nielsen Syndrome (JLNS)
      Cardiac Electrophysiology | Cardiology

      Main Line Healthcare

      100 E Lancaster Ave, 
      Wynewood, PA 
       (3.7 miles away)
      Languages Spoken:
      English

      Kar Wong is a Cardiac Electrophysiologist and a Cardiologist in Wynewood, Pennsylvania. Dr. Wong is rated as an Experienced provider by MediFind in the treatment of Jervell Lange-Nielsen Syndrome (JLNS). Her top areas of expertise are Atrial Fibrillation, Arrhythmias, Familial Progressive Cardiac Conduction Defect, Pacemaker Implantation, and Cardiac Ablation.

      What does Elite, Distinguished, Advanced, Experienced mean?
      Paul J. Mather
      Distinguished in Jervell Lange-Nielsen Syndrome (JLNS)
      Distinguished in Jervell Lange-Nielsen Syndrome (JLNS)

      Penn Heart And Vascular Center Radnor

      145 King Of Prussia Road, Suite 110, 
      Center Radnor, PA 
       (5.3 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Paul Mather is a Cardiologist in Center Radnor, Pennsylvania. Dr. Mather is rated as a Distinguished provider by MediFind in the treatment of Jervell Lange-Nielsen Syndrome (JLNS). His top areas of expertise are Cardiomyopathy, Heart Failure, Peripartum Cardiomyopathy, Heart Transplant, and Cardiac Ablation. Dr. Mather is currently accepting new patients.

      Learn about our expert tiers
      Distinguished in Jervell Lange-Nielsen Syndrome (JLNS)
      Distinguished in Jervell Lange-Nielsen Syndrome (JLNS)

      Penn Heart And Vascular Center Radnor

      145 King Of Prussia Road, Suite 110, 
      Center Radnor, PA 
       (5.3 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Ramanan Kumareswaran is a Cardiologist in Center Radnor, Pennsylvania. Dr. Kumareswaran is rated as a Distinguished provider by MediFind in the treatment of Jervell Lange-Nielsen Syndrome (JLNS). His top areas of expertise are Ventricular Tachycardia, Arrhythmias, Atrial Fibrillation, Cardiac Ablation, and Pacemaker Implantation. Dr. Kumareswaran is currently accepting new patients.

      Distinguished in Jervell Lange-Nielsen Syndrome (JLNS)
      Distinguished in Jervell Lange-Nielsen Syndrome (JLNS)

      Penn Heart And Vascular Center Radnor

      145 King Of Prussia Road, Suite 110, 
      Center Radnor, PA 
       (5.3 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Michael Fradley is a Cardiologist in Center Radnor, Pennsylvania. Dr. Fradley is rated as a Distinguished provider by MediFind in the treatment of Jervell Lange-Nielsen Syndrome (JLNS). His top areas of expertise are Myocarditis, Atrial Fibrillation, Cardiomyopathy Due to Anthracyclines, and Arrhythmias. Dr. Fradley is currently accepting new patients.

      Distinguished in Jervell Lange-Nielsen Syndrome (JLNS)
      Distinguished in Jervell Lange-Nielsen Syndrome (JLNS)

      Penn Cardiology HUP - Cedar Avenue

      501 S. 54th Street, MOB Ground Floor, Suite 26, 
      Philadelphia, PA 
       (6.7 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Gerald Devaughn is a Cardiologist in Philadelphia, Pennsylvania. Dr. Devaughn is rated as a Distinguished provider by MediFind in the treatment of Jervell Lange-Nielsen Syndrome (JLNS). His top areas of expertise are Familial Ventricular Tachycardia, Inappropriate Sinus Tachycardia (IST), Timothy Syndrome, and Long QT Syndrome 3. Dr. Devaughn is currently accepting new patients.

      Peter R. Kowey
      Experienced in Jervell Lange-Nielsen Syndrome (JLNS)
      Cardiology | Cardiac Electrophysiology
      Experienced in Jervell Lange-Nielsen Syndrome (JLNS)
      Cardiology | Cardiac Electrophysiology

      Main Line Healthcare

      930 Germantown Pike, 
      Plymouth Meeting, PA 
       (7.3 miles away)
      Languages Spoken:
      English

      Peter Kowey is a Cardiologist and a Cardiac Electrophysiologist in Plymouth Meeting, Pennsylvania. Dr. Kowey is rated as an Experienced provider by MediFind in the treatment of Jervell Lange-Nielsen Syndrome (JLNS). His top areas of expertise are Atrial Fibrillation, Paroxysmal Supraventricular Tachycardia (PSVT), Long QT Syndrome, Cardiac Ablation, and Percutaneous Coronary Intervention (PCI).

      Distinguished in Jervell Lange-Nielsen Syndrome (JLNS)
      Distinguished in Jervell Lange-Nielsen Syndrome (JLNS)

      Penn Heart And Vascular Center

      3400 Civic Center Boulevard, East Pavilion, 2nd Floor, 
      Philadelphia, PA 
       (8.3 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Robert Schaller is a Cardiologist in Philadelphia, Pennsylvania. Dr. Schaller is rated as a Distinguished provider by MediFind in the treatment of Jervell Lange-Nielsen Syndrome (JLNS). His top areas of expertise are Ventricular Tachycardia, Arrhythmias, Cardiomyopathy, Cardiac Ablation, and Pacemaker Implantation. Dr. Schaller is currently accepting new patients.

      Distinguished in Jervell Lange-Nielsen Syndrome (JLNS)
      Distinguished in Jervell Lange-Nielsen Syndrome (JLNS)

      Penn Heart And Vascular Center

      3400 Civic Center Boulevard, East Pavilion, 2nd Floor, 
      Philadelphia, PA 
       (8.3 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      David Mccarthy is a Cardiologist in Philadelphia, Pennsylvania. Dr. Mccarthy is rated as a Distinguished provider by MediFind in the treatment of Jervell Lange-Nielsen Syndrome (JLNS). His top areas of expertise are Inappropriate Sinus Tachycardia (IST), Familial Ventricular Tachycardia, Long QT Syndrome 2, and Long QT Syndrome. Dr. Mccarthy is currently accepting new patients.

      Michael V. Genuardi
      Advanced in Jervell Lange-Nielsen Syndrome (JLNS)
      Advanced in Jervell Lange-Nielsen Syndrome (JLNS)

      Penn Heart And Vascular Center Radnor

      145 King Of Prussia Road, Suite 110, 
      Center Radnor, PA 
       (5.3 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Michael Genuardi is a Cardiologist in Center Radnor, Pennsylvania. Dr. Genuardi is rated as an Advanced provider by MediFind in the treatment of Jervell Lange-Nielsen Syndrome (JLNS). His top areas of expertise are Cardiogenic Shock, Heart Failure, Cardiomyopathy, Arrhythmogenic Right Ventricular Cardiomyopathy, and Heart Transplant. Dr. Genuardi is currently accepting new patients.

      Advanced in Jervell Lange-Nielsen Syndrome (JLNS)
      Advanced in Jervell Lange-Nielsen Syndrome (JLNS)

      Penn Heart And Vascular Center Radnor

      145 King Of Prussia Road, Suite 110, 
      Center Radnor, PA 
       (5.3 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Timothy Markman is a Cardiologist in Center Radnor, Pennsylvania. Dr. Markman is rated as an Advanced provider by MediFind in the treatment of Jervell Lange-Nielsen Syndrome (JLNS). His top areas of expertise are Arrhythmias, Fainting, Ventricular Tachycardia, Cardiac Ablation, and Pacemaker Implantation. Dr. Markman is currently accepting new patients.

      Advanced in Jervell Lange-Nielsen Syndrome (JLNS)
      Advanced in Jervell Lange-Nielsen Syndrome (JLNS)

      Penn Heart And Vascular Center Radnor

      145 King Of Prussia Road, Suite 110, 
      Center Radnor, PA 
       (5.3 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Saman Nazarian is a Cardiologist in Center Radnor, Pennsylvania. Dr. Nazarian is rated as an Advanced provider by MediFind in the treatment of Jervell Lange-Nielsen Syndrome (JLNS). His top areas of expertise are Ventricular Tachycardia, Arrhythmias, Atrial Fibrillation, Cardiac Ablation, and Pacemaker Implantation. Dr. Nazarian is currently accepting new patients.

      Distinguished in Jervell Lange-Nielsen Syndrome (JLNS)
      Distinguished in Jervell Lange-Nielsen Syndrome (JLNS)

      University Of Penn-Medical Group

      3400 Spruce St, 
      Philadelphia, PA 
       (8.2 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Marietta Ambrose is a Cardiologist in Philadelphia, Pennsylvania. Dr. Ambrose is rated as a Distinguished provider by MediFind in the treatment of Jervell Lange-Nielsen Syndrome (JLNS). Her top areas of expertise are Familial Ventricular Tachycardia, Arrhythmias, Coronary Heart Disease, and Long QT Syndrome.

      Advanced in Jervell Lange-Nielsen Syndrome (JLNS)
      Advanced in Jervell Lange-Nielsen Syndrome (JLNS)

      Penn Heart And Vascular Center

      3400 Civic Center Boulevard, East Pavilion, 2nd Floor, 
      Philadelphia, PA 
       (8.3 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Paul Fiorilli is a Cardiologist in Philadelphia, Pennsylvania. Dr. Fiorilli is rated as an Advanced provider by MediFind in the treatment of Jervell Lange-Nielsen Syndrome (JLNS). His top areas of expertise are Aortic Valve Stenosis, Mitral Valve Regurgitation, Familial Ventricular Tachycardia, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement. Dr. Fiorilli is currently accepting new patients.

      Advanced in Jervell Lange-Nielsen Syndrome (JLNS)
      Cardiology
      Advanced in Jervell Lange-Nielsen Syndrome (JLNS)
      Cardiology

      Penn Heart And Vascular Center

      3400 Civic Center Boulevard, East Pavilion, 2nd Floor, 
      Philadelphia, PA 
       (8.3 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      David Lin is a Cardiologist in Philadelphia, Pennsylvania. Dr. Lin is rated as an Advanced provider by MediFind in the treatment of Jervell Lange-Nielsen Syndrome (JLNS). His top areas of expertise are Arrhythmias, Ventricular Tachycardia, Atrial Fibrillation, Cardiac Ablation, and Pacemaker Implantation. Dr. Lin is currently accepting new patients.

      Advanced in Jervell Lange-Nielsen Syndrome (JLNS)
      Advanced in Jervell Lange-Nielsen Syndrome (JLNS)

      Penn Heart And Vascular Center

      3400 Civic Center Boulevard, East Pavilion, 2nd Floor, 
      Philadelphia, PA 
       (8.3 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Michael Riley is a Cardiologist in Philadelphia, Pennsylvania. Dr. Riley is rated as an Advanced provider by MediFind in the treatment of Jervell Lange-Nielsen Syndrome (JLNS). His top areas of expertise are Arrhythmias, Ventricular Tachycardia, Atrial Fibrillation, Cardiac Ablation, and Pacemaker Implantation. Dr. Riley is currently accepting new patients.

      Advanced in Jervell Lange-Nielsen Syndrome (JLNS)
      Advanced in Jervell Lange-Nielsen Syndrome (JLNS)

      Penn Heart And Vascular Center

      3400 Civic Center Boulevard, East Pavilion, 2nd Floor, 
      Philadelphia, PA 
       (8.3 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      David Callans is a Cardiologist in Philadelphia, Pennsylvania. Dr. Callans is rated as an Advanced provider by MediFind in the treatment of Jervell Lange-Nielsen Syndrome (JLNS). His top areas of expertise are Ventricular Tachycardia, Arrhythmias, Cardiomyopathy, Cardiac Ablation, and Pacemaker Implantation. Dr. Callans is currently accepting new patients.

      Advanced in Jervell Lange-Nielsen Syndrome (JLNS)
      Advanced in Jervell Lange-Nielsen Syndrome (JLNS)

      Penn Heart And Vascular Center

      3400 Civic Center Boulevard, East Pavilion, 2nd Floor, 
      Philadelphia, PA 
       (8.3 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Victor Ferrari is a Cardiologist in Philadelphia, Pennsylvania. Dr. Ferrari is rated as an Advanced provider by MediFind in the treatment of Jervell Lange-Nielsen Syndrome (JLNS). His top areas of expertise are Cardiomyopathy, Bicuspid Aortic Valve, Sengers Syndrome, Heart Valve Repair, and Cardiac Ablation. Dr. Ferrari is currently accepting new patients.

      Advanced in Jervell Lange-Nielsen Syndrome (JLNS)
      Advanced in Jervell Lange-Nielsen Syndrome (JLNS)

      Penn Heart And Vascular Center

      3400 Civic Center Boulevard, East Pavilion, 2nd Floor, 
      Philadelphia, PA 
       (8.3 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      William O'donnell is a Cardiologist in Philadelphia, Pennsylvania. Dr. O'donnell is rated as an Advanced provider by MediFind in the treatment of Jervell Lange-Nielsen Syndrome (JLNS). His top areas of expertise are Familial Ventricular Tachycardia, Arrhythmias, Catecholaminergic Polymorphic Ventricular Tachycardia, and Ventricular Tachycardia. Dr. O'donnell is currently accepting new patients.

      Advanced in Jervell Lange-Nielsen Syndrome (JLNS)
      Cardiology
      Advanced in Jervell Lange-Nielsen Syndrome (JLNS)
      Cardiology

      Penn Heart And Vascular Center

      3400 Civic Center Boulevard, East Pavilion, 2nd Floor, 
      Philadelphia, PA 
       (8.3 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Kiran Sidhu is a Cardiologist in Philadelphia, Pennsylvania. Dr. Sidhu is rated as an Advanced provider by MediFind in the treatment of Jervell Lange-Nielsen Syndrome (JLNS). Her top areas of expertise are Cardiogenic Shock, Long QT Syndrome 2, Long QT Syndrome 1, and Long QT Syndrome 3. Dr. Sidhu is currently accepting new patients.

      Showing 1-20 of 159

      Last Updated: 10/30/2025

      What is the definition of Jervell Lange-Nielsen Syndrome (JLNS)?

      Jervell and Lange-Nielsen syndrome is a condition that causes profound hearing loss from birth and a disruption of the heart's normal rhythm (arrhythmia). This disorder is a form of long QT syndrome, which is a heart condition that causes the heart (cardiac) muscle to take longer than usual to recharge between beats. Beginning in early childhood, the irregular heartbeats increase the risk of fainting (syncope) and sudden death.

      When should I see a Jervell Lange-Nielsen Syndrome (JLNS) doctor near Bryn Mawr, PA?

      There are various reasons why you may want to see a specialist, such as: 

      • Your primary care provider recommends it. 
      • Your condition requires expert knowledge and specialized care. 
      • Your symptoms persist or worsen despite treatment. 
      • You need specialized testing or procedures. 
      • You want a second opinion.  

      What should I consider when choosing a Jervell Lange-Nielsen Syndrome (JLNS) doctor near Bryn Mawr, PA?

      It’s important to see a provider with expertise in your specific condition. Each provider profile in MediFind’s doctor database includes information on which conditions they treat, years of experience, research contributions, languages spoken, insurance plans accepted, and more.  

      How does MediFind rank Jervell Lange-Nielsen Syndrome (JLNS) doctors near Bryn Mawr, PA?

      MediFind’s rankings are based on a variety of data sources, such as the number of articles a doctor has published in medical journals, participation in clinical trials and industry conferences, as well as the number of patients that provider sees for a given condition. Note that MediFind’s provider database is not based on user reviews, and providers do not pay to be included in the database. 

      What types of insurance are accepted by Jervell Lange-Nielsen Syndrome (JLNS) doctors near Bryn Mawr, PA?

      Most profiles in MediFind’s doctor database include a list of insurance plans accepted by that provider. However, it’s a good idea to contact the provider’s office to make sure they still accept your insurance, then doublecheck by contacting your insurance plan to confirm they’re in network. 

      How can I book an appointment online with a Jervell Lange-Nielsen Syndrome (JLNS) doctor near Bryn Mawr, PA?

      MediFind offers direct scheduling for certain providers using the “Request Appointment” button on that provider’s profile. If the schedule option is not available for a provider, tap the red “Show Phone Number” button on their profile to get their contact information. If you prefer to find providers who offer online scheduling, select “Schedules online” under the “Availability” category of the filter feature on the left side of the Jervell Lange-Nielsen Syndrome (JLNS) doctor search results page. 

      Why is it important to get a second opinion from a different Jervell Lange-Nielsen Syndrome (JLNS) doctor?

      Second opinions are an opportunity to confirm a diagnosis and its root cause, learn about alternative treatment options, or simply gain peace of mind. Many people, especially those with serious diagnoses, get second opinions so they can understand all their options and make informed decisions, so don’t hesitate to get one if you have any doubts or need more information or clarification regarding your care. Note that some insurance plans require second opinions, while others don’t cover second opinions, so be sure to confirm with your insurance provider first.   

      How can I prepare for my appointment with a Jervell Lange-Nielsen Syndrome (JLNS) doctor near Bryn Mawr, PA?

      Prepare for your appointment by gathering the following items: 

      • Copies of medical records (dating back at least one year) 
      • Your medical history, including illnesses, medical conditions, surgeries, and other doctors you see 
      • Family history of disease 
      • List of current prescription drugs, over-the-counter medicines, vitamins, and herbal remedies or supplements including names and doses 
      • Allergies to medications, food, latex, insects, etc.  
      • List of questions and concerns 
      • Your insurance card 

      You might also contact the provider’s office to see if they offer transportation or childcare services or if you’re allowed to bring a loved one for support or to take notes during your visit. 

      What questions should I ask my Jervell Lange-Nielsen Syndrome (JLNS) doctor?

      Here are some sample questions: 

      • Can you explain in simple terms what this condition is and how it’s treated? 
      • What symptoms or side effects should I watch for? 
      • What tests will be involved, and when can I expect results? 
      • Are there other specialists I need to see? 
      • What’s the best way to reach you if I have follow-up questions? 

      How can I learn about the latest clinical trials and research advances my Jervell Lange-Nielsen Syndrome (JLNS) doctor may know about?

      MediFind’s Clinical Trials tool asks you a series of questions to help you narrow down your search by health condition, age, gender, location, how far you’re willing to travel, and more. Each question you answer filters down the number of trials until you find the ones that are most relevant to you. 

      MediFind’s Latest Advances tool features summaries of recent articles published in medical journals. We use cutting-edge technology to scour medical publication databases for the latest research advancements on any given condition, then we simplify this information in a way that’s useful and easy to understand. 

      Can I filter my search to show male or female Jervell Lange-Nielsen Syndrome (JLNS) doctors near Bryn Mawr, PA?

      Look for the filter feature on the left side of the Jervell Lange-Nielsen Syndrome (JLNS) doctor search results page. Select “Female” or “Male” under the “Gender” category to search for female or male providers exclusively. If the “Any” option is selected, it will pull results for both male and female providers. 

      Can I filter my search to find a Jervell Lange-Nielsen Syndrome (JLNS) doctor that offers video calls?

      Look for the filter feature on the left-side of the Jervell Lange-Nielsen Syndrome (JLNS) doctor search results page. Select “Offers telehealth visits” under the Availability category to search for providers who offer virtual appointments (video calls). 

      Reviewed on: 11/11/24  

      By: MediFind Medical Staff 

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