The 20 Best Atrial Septal Defect (ASD) Doctors Near Me in o fallon, MO

Find the Top Atrial Septal Defect (ASD) Experts and Specialists

Last Updated: 09/26/2026

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MediFind found 13 doctor with experience in Atrial Septal Defect (ASD) near o fallon, MO. Of these, 10 are Experienced and 3 are Advanced.

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13 providers found
    Experienced in Atrial Septal Defect (ASD)
    Experienced in Atrial Septal Defect (ASD)
    Referral may be required

    SSM Health Heart & Vascular Care

    300 Medical Plaza, 
    Lake St. Louis, MO 
     (4.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Abhay Laddu is a Cardiologist practicing medicine in Lake St. Louis, Missouri. Dr. Laddu is rated as an Experienced provider by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 25 other conditions, according to our data. His clinical expertise encompasses Coronary Heart Disease, Angina, Heart Attack, and Atrial Fibrillation. Dr. Laddu is board certified in Missouri Dept Of Health/Narcotics&Dangerous Drugs , Illinois Department Of Financial & Professional Regulation , Missouri State Board Of Registration, Drug Enforcement Administration , and American Board Of Internal Medicine/Cardiovascular Disease . Dr. Laddu is currently accepting new patients.

    Experienced in Atrial Septal Defect (ASD)
    Advanced Heart Failure and Transplant Cardiology | Cardiology
    Experienced in Atrial Septal Defect (ASD)
    Advanced Heart Failure and Transplant Cardiology | Cardiology
    Referral may be required

    SSM Health Heart & Vascular Care

    300 Medical Plaza, 
    Lake St. Louis, MO 
     (4.1 miles away)
    Languages Spoken:
    English, Arabic, French
    Accepting New Patients
    Offers Telehealth

    Georges Chahoud is an Advanced Heart Failure and Transplant Cardiologist and a Cardiologist practicing medicine in Lake St. Louis, Missouri. Dr. Chahoud is rated as an Experienced provider by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 31 other conditions, according to our data. His clinical expertise encompasses Heart Failure, Heart Failure with Preserved Ejection Fraction (HFpEF), Pulmonary Edema, and Arrhythmogenic Right Ventricular Cardiomyopathy. Dr. Chahoud is board certified in Certification Board Of Nuclear Cardiology , Missouri Dept Of Health/Narcotics&Dangerous Drugs , Illinois Department Of Financial & Professional Regulation , Missouri State Board Of Registration, Drug Enforcement Administration , American Board Of Internal Medicine/Cardiovascular Disease , and American Board Of Internal Medicine/Advanced Heart Failure &Transplant Cardiology . Dr. Chahoud is currently accepting new patients.

    Experienced in Atrial Septal Defect (ASD)
    Cardiology | Interventional Cardiology
    Experienced in Atrial Septal Defect (ASD)
    Cardiology | Interventional Cardiology
    Referral may be required

    SSM Health Heart & Vascular Care

    300 Medical Plaza, 
    Lake St. Louis, MO 
     (4.1 miles away)
    Languages Spoken:
    English, Arabic, French
    Accepting New Patients

    Sam Bishara is a Cardiologist and an Interventional Cardiologist practicing medicine in Lake St. Louis, Missouri. Dr. Bishara is rated as an Experienced provider by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 31 other conditions, according to our data. His clinical expertise encompasses Coronary Heart Disease, Angina, Atherosclerosis, Pacemaker Implantation, and Aortic Valve Replacement. Dr. Bishara is board certified in Missouri Dept Of Health/Narcotics&Dangerous Drugs , Illinois Department Of Financial & Professional Regulation , Missouri State Board Of Registration, Drug Enforcement Administration , American Board Of Internal Medicine/Cardiovascular Disease , and American Board Of Internal Medicine/Interventional Cardiology . Dr. Bishara is currently accepting new patients.

    Learn about our expert tiers
    Experienced in Atrial Septal Defect (ASD)
    Family Medicine
    Experienced in Atrial Septal Defect (ASD)
    Family Medicine

    Office

    5551 Winghaven Blvd Ste 142, 
    O Fallon, MO 
     (4.4 miles away)
    Languages Spoken:
    English, Spanish
    Accepting New Patients

    Nelson Usry is a primary care provider, practicing in Family Medicine in O Fallon, Missouri. Dr. Usry is rated as an Experienced provider by MediFind in the treatment of Atrial Septal Defect (ASD). His clinical expertise encompasses Familial Hypertension, Hypertension, Glucocorticoid-Remediable Aldosteronism, and Idiopathic Edema. Dr. Usry is currently accepting new patients.

    Advanced in Atrial Septal Defect (ASD)
    Advanced in Atrial Septal Defect (ASD)
    Referral may be required

    Mercy Clinic Heart And Vascular LLC

    1820 Zumbehl Rd, Suite 120, 
    Saint Charles, MO 
     (9.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Bruce Czarnik is a Cardiologist practicing medicine in Saint Charles, Missouri. Dr. Czarnik is rated as an Advanced provider by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 30 other conditions, according to our data. His clinical expertise encompasses Arrhythmogenic Right Ventricular Cardiomyopathy, Cardiomyopathy, Ectopic Heartbeat, Coronary Heart Disease, and Pacemaker Implantation. Dr. Czarnik is currently accepting new patients.

    Advanced in Atrial Septal Defect (ASD)
    Advanced in Atrial Septal Defect (ASD)
    Referral may be required

    Mercy Imaging Services-Zumbehl Road

    1820 Zumbehl Rd, 
    Saint Charles, MO 
     (9.5 miles away)
    Languages Spoken:
    English, Korean
    Accepting New Patients
    Offers Telehealth

    Anthony Sonn is a Cardiologist practicing medicine in Saint Charles, Missouri. Dr. Sonn is rated as an Advanced provider by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 27 other conditions, according to our data. His clinical expertise encompasses Coronary Heart Disease, Aortic Valve Stenosis, Atherosclerosis, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement. Dr. Sonn is currently accepting new patients.

    Experienced in Atrial Septal Defect (ASD)
    Cardiology | Interventional Cardiology
    Experienced in Atrial Septal Defect (ASD)
    Cardiology | Interventional Cardiology
    Referral may be required

    SSM Health Heart & Vascular Care

    1475 Kisker Road, 
    St. Charles, MO 
     (6.5 miles away)
    Languages Spoken:
    English, Arabic, French, Hindi, Louisiana Creole French
    Accepting New Patients

    Saad Bitar is a Cardiologist and an Interventional Cardiologist practicing medicine in St. Charles, Missouri. Dr. Bitar is rated as an Experienced provider by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 41 other conditions, according to our data. His clinical expertise encompasses Coronary Heart Disease, Angina, Thoracic Aortic Aneurysm, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement. Dr. Bitar is board certified in Missouri Dept Of Health/Narcotics&Dangerous Drugs , Illinois Department Of Financial & Professional Regulation , Missouri State Board Of Registration, Drug Enforcement Administration , American Board Of Internal Medicine/Cardiovascular Disease , and American Board Of Internal Medicine/Interventional Cardiology . Dr. Bitar is currently accepting new patients.

    Advanced in Atrial Septal Defect (ASD)
    Cardiology | Interventional Cardiology
    Advanced in Atrial Septal Defect (ASD)
    Cardiology | Interventional Cardiology
    Referral may be required

    SSM Health Heart & Vascular Care

    400 First Capitol Drive, Suite 401, 
    St. Charles, MO 
     (13.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Ali Ziaee is a Cardiologist and an Interventional Cardiologist practicing medicine in St. Charles, Missouri. Dr. Ziaee is rated as an Advanced provider by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 32 other conditions, according to our data. His clinical expertise encompasses Coronary Heart Disease, Angina, Atherosclerosis, Pacemaker Implantation, and Cardiac Ablation. Dr. Ziaee is board certified in Missouri Dept Of Health/Narcotics&Dangerous Drugs , Illinois Department Of Financial & Professional Regulation , Missouri State Board Of Registration, American Board Of Internal Medicine , Drug Enforcement Administration , American Board Of Internal Medicine/Cardiovascular Disease , and American Board Of Internal Medicine/Interventional Cardiology . Dr. Ziaee is currently accepting new patients.

    Experienced in Atrial Septal Defect (ASD)
    Internal Medicine
    Experienced in Atrial Septal Defect (ASD)
    Internal Medicine

    Ardaman S Nanda Inc

    12266 De Paul Dr Ste 205, 
    Bridgeton, MO 
     (14.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Stanley Biel is a primary care provider, practicing in Internal Medicine in Bridgeton, Missouri. Dr. Biel is rated as an Experienced provider by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Arrhythmogenic Right Ventricular Cardiomyopathy, Cardiomyopathy, Ventricular Tachycardia, and Coronary Heart Disease. Dr. Biel is currently accepting new patients.

    Experienced in Atrial Septal Defect (ASD)
    Cardiology | Interventional Cardiology
    Experienced in Atrial Septal Defect (ASD)
    Cardiology | Interventional Cardiology
    Referral may be required

    SSM Health Heart & Vascular Care

    12266 DePaul Drive, Suite 205, 
    Bridgeton, MO 
     (15.0 miles away)
    Languages Spoken:
    English, Arabic, French
    Accepting New Patients

    Elie Azrak is a Cardiologist and an Interventional Cardiologist practicing medicine in Bridgeton, Missouri. Dr. Azrak is rated as an Experienced provider by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 23 other conditions, according to our data. His clinical expertise encompasses Aortic Valve Stenosis, Mitral Valve Regurgitation, Coronary Heart Disease, Aortic Valve Replacement, and Transcatheter Aortic Valve Replacement (TAVR). Dr. Azrak is board certified in Missouri Dept Of Health/Narcotics&Dangerous Drugs , Missouri State Board Of Registration, Drug Enforcement Administration , American Board Of Internal Medicine/Cardiovascular Disease , and American Board Of Internal Medicine/Interventional Cardiology . Dr. Azrak is currently accepting new patients.

    Experienced in Atrial Septal Defect (ASD)
    Cardiology | Interventional Cardiology
    Experienced in Atrial Septal Defect (ASD)
    Cardiology | Interventional Cardiology
    Referral may be required

    SSM Health Heart & Vascular Care

    12266 DePaul Drive, Suite 205, 
    Bridgeton, MO 
     (15.0 miles away)
    Languages Spoken:
    English, Hindi
    Accepting New Patients

    Arun Venkat is a Cardiologist and an Interventional Cardiologist practicing medicine in Bridgeton, Missouri. Dr. Venkat is rated as an Experienced provider by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 28 other conditions, according to our data. His clinical expertise encompasses Cardiomyopathy, Arrhythmias, Heart Attack, Familial Ventricular Tachycardia, and Pacemaker Implantation. Dr. Venkat is board certified in Missouri Dept Of Health/Narcotics&Dangerous Drugs , Missouri State Board Of Registration, Drug Enforcement Administration , American Board Of Internal Medicine/Cardiovascular Disease , and American Board Of Internal Medicine/Interventional Cardiology . Dr. Venkat is currently accepting new patients.

    Experienced in Atrial Septal Defect (ASD)
    Experienced in Atrial Septal Defect (ASD)
    Referral may be required

    St. Luke's Cardiology - Heart Health Specialists

    121 Saint Lukes Center Dr Ste 303, 
    Chesterfield,, MO 
     (14.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Craig Reiss is a Cardiologist practicing medicine in Chesterfield,, Missouri. Dr. Reiss is rated as an Experienced provider by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 30 other conditions, according to our data. His clinical expertise encompasses Coronary Heart Disease, Angina, Atherosclerosis, and Heart Failure with Preserved Ejection Fraction (HFpEF). Dr. Reiss is currently accepting new patients.

    Experienced in Atrial Septal Defect (ASD)
    Cardiology | Interventional Cardiology
    Experienced in Atrial Septal Defect (ASD)
    Cardiology | Interventional Cardiology
    Referral may be required
    3550 McKelvey Road, 
    Bridgeton, MO 
     (14.8 miles away)
    Languages Spoken:
    English, Hindi
    Accepting New Patients

    Sundeep Das is a Cardiologist and an Interventional Cardiologist practicing medicine in Bridgeton, Missouri. Dr. Das is rated as an Experienced provider by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 22 other conditions, according to our data. His clinical expertise encompasses Cardiomyopathy, Angina, Arrhythmogenic Right Ventricular Cardiomyopathy, Aortic Valve Replacement, and Transcatheter Aortic Valve Replacement (TAVR). Dr. Das is board certified in Missouri Dept Of Health/Narcotics&Dangerous Drugs , Illinois Department Of Financial & Professional Regulation , Missouri State Board Of Registration, Drug Enforcement Administration , American Board Of Internal Medicine/Cardiovascular Disease , and American Board Of Internal Medicine/Interventional Cardiology . Dr. Das is currently accepting new patients.

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    Last Updated: 09/26/2026

    What is the definition of Atrial Septal Defect (ASD)?

    Atrial septal defect (ASD) is a heart defect that is present at birth (congenital).

    As a baby develops in the womb, a wall (septum) forms that divides the upper chamber into a left and right atrium. When this wall does not form correctly, it can result in a defect that remains after birth. This is called an atrial septal defect, or ASD.

    When should I see an Atrial Septal Defect (ASD) doctor near o fallon, MO?

    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 an Atrial Septal Defect (ASD) doctor near o fallon, MO?

    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 Atrial Septal Defect (ASD) doctors near o fallon, MO?

    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 Atrial Septal Defect (ASD) doctors near o fallon, MO?

    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 an Atrial Septal Defect (ASD) doctor near o fallon, MO?

    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 Atrial Septal Defect (ASD) doctor search results page. 

    Why is it important to get a second opinion from a different Atrial Septal Defect (ASD) 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 an Atrial Septal Defect (ASD) doctor near o fallon, MO?

    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 Atrial Septal Defect (ASD) 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 Atrial Septal Defect (ASD) 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 Atrial Septal Defect (ASD) doctors near o fallon, MO?

    Look for the filter feature on the left side of the Atrial Septal Defect (ASD) 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 an Atrial Septal Defect (ASD) doctor that offers video calls?

    Look for the filter feature on the left-side of the Atrial Septal Defect (ASD) 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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