The 20 Best Atrial Septal Defect (ASD) Doctors Near Me in Montana, US

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

Last Updated: 06/30/2026

Save doctors for later
Sign Up
Not sure about your diagnosis?
Check Your Symptoms
Already have a doctor?
Find A Second Opinion

MediFind found 35 doctor with experience in Atrial Septal Defect (ASD) near Montana, US. Of these, 28 are Experienced, 5 are Advanced and 2 are Distinguished.

Location
LocationClose
35 providers found
    Advanced in Atrial Septal Defect (ASD)
    Interventional Cardiology | Cardiology
    Advanced in Atrial Septal Defect (ASD)
    Interventional Cardiology | Cardiology
    Referral may be required

    Intermountain Health Heart & Vascular - Downtown Clinic Cardiology

    2900 12th Avenue North, Suite 204E, 
    Billings, MT 
    Experience:
    42+ years
    Languages Spoken:
    English
    Accepting New Patients

    Robert Terry is a Cardiologist and an Interventional Cardiologist practicing medicine in Billings, Montana. He has been practicing medicine for over 42 years. Dr. Terry is rated as an Advanced provider by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 26 other conditions, according to our data. His clinical expertise encompasses Coronary Heart Disease, Atherosclerosis, Angina, Pacemaker Implantation, and Transcatheter Aortic Valve Replacement (TAVR). Dr. Terry is board certified in American Board Of Internal Medicine and American Board Of Internal Medicine. Dr. Terry is currently accepting new patients.

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

    Billings Clinic

    801 N 29th St, 
    Billings,, MT 
    Languages Spoken:
    English
    Offers Telehealth

    Barbara Dudczak is a Cardiologist practicing medicine in Billings,, Montana. Dr. Dudczak is rated as a Distinguished provider by MediFind in the treatment of Atrial Septal Defect (ASD). She is also highly rated in 34 other conditions, according to our data. Her clinical expertise encompasses Aortic Regurgitation, Coronary Heart Disease, Necrosis, and Pediatric Myocarditis.

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

    Cmsc LLC

    3000 15th Ave S, 
    Great Falls, MT 
    Languages Spoken:
    English

    Michael Ritchie is a Cardiologist practicing medicine in Great Falls, Montana. Dr. Ritchie is rated as a Distinguished provider by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 21 other conditions, according to our data. His clinical expertise encompasses Patent Foramen Ovale, Atrial Septal Defect (ASD), Unstable Angina, Carotid Artery Disease, and Pacemaker Implantation. Dr. Ritchie is board certified in American Board Certified Internal Medicine, American Board Certified Interventional Cardiology, and American Board Certified Cardiovascular Diseases.

    Learn about our expert tiers
    Advanced in Atrial Septal Defect (ASD)
    Interventional Cardiology
    Advanced in Atrial Septal Defect (ASD)
    Interventional Cardiology
    Referral may be required
    6 13th Avenue East, 
    Polson, MT 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    James Maddux is an Interventional Cardiologist practicing medicine in Polson, Montana. Dr. Maddux is rated as an Advanced 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 Hypertrophic Cardiomyopathy (HCM), Subvalvular Aortic Stenosis, Cardiomyopathy, Aortic Valve Replacement, and Transcatheter Aortic Valve Replacement (TAVR). Dr. Maddux is currently accepting new patients.

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

    Cmsc LLC

    3000 15th Ave S, 
    Great Falls, MT 
    Languages Spoken:
    English

    Jorge Castriz is an Interventional Cardiologist practicing medicine in Great Falls, Montana. Dr. Castriz is rated as an Advanced 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 Angina, Coronary Heart Disease, Heart Attack, Metabolic Syndrome, and Pacemaker Implantation. Dr. Castriz is board certified in American Board Of Internal Medicine, American Board Of Cadiovascular Disease, and American Board Of Interventional Cardiology.

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

    Billings Clinic

    801 N 29th St, 
    Billings,, MT 
    Languages Spoken:
    English
    Offers Telehealth

    Collin Fischer is a Cardiologist practicing medicine in Billings,, Montana. Dr. Fischer 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 Aortic Regurgitation, Pediatric Myocarditis, Vasculitis, Pacemaker Implantation, and Cardiac Ablation.

    Advanced in Atrial Septal Defect (ASD)
    Interventional Cardiology
    Advanced in Atrial Septal Defect (ASD)
    Interventional Cardiology
    Referral may be required
    500 West Broadway Street, Suite 320, 
    Missoula, MT 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Michael Reed is an Interventional Cardiologist practicing medicine in Missoula, Montana. Dr. Reed is rated as an Advanced provider by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 18 other conditions, according to our data. His clinical expertise encompasses Coronary Heart Disease, Necrosis, Heart Attack, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement. Dr. Reed is currently accepting new patients.

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

    Providence Health & Services Mt

    350 Heritage Way Ste 2100, 
    Kalispell, MT 
    Languages Spoken:
    English

    Robert Mitchell is a Cardiologist practicing medicine in Kalispell, Montana. Dr. Mitchell is rated as an Experienced provider by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 48 other conditions, according to our data. His clinical expertise encompasses Atrial Fibrillation, Aortic Regurgitation, Arrhythmias, Pediatric Myocarditis, and Pacemaker Implantation.

    Experienced in Atrial Septal Defect (ASD)
    Experienced in Atrial Septal Defect (ASD)
    Referral may be required
    1102 East Commercial Avenue, Anaconda Montana Health Center, 
    Anaconda, MT 
    Languages Spoken:
    English
    Accepting New Patients

    William Hull is a Cardiologist practicing medicine in Anaconda, Montana. Dr. Hull 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 Angina, Atrial Fibrillation, Sick Sinus Syndrome, and Atherosclerosis. Dr. Hull is currently accepting new patients.

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

    Joseph Leal M.D. P.C.

    107 Dilworth St, 
    Glendive,, MT 
    Languages Spoken:
    English

    Clara Kay is a Cardiologist practicing medicine in Glendive,, Montana. Dr. Kay is rated as an Experienced provider by MediFind in the treatment of Atrial Septal Defect (ASD). She is also highly rated in 22 other conditions, according to our data. Her clinical expertise encompasses Aortic Regurgitation, Ectopic Heartbeat, Necrosis, Pacemaker Implantation, and Cardiac Ablation.

    Experienced in Atrial Septal Defect (ASD)
    Experienced in Atrial Septal Defect (ASD)
    Referral may be required
    6 13th Avenue East, 
    Polson, MT 
    Languages Spoken:
    English
    Accepting New Patients

    Alexander Jehle is a Cardiologist practicing medicine in Polson, Montana. Dr. Jehle is rated as an Experienced provider by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 19 other conditions, according to our data. His clinical expertise encompasses Mitral Valve Regurgitation, Necrosis, Adenosine Deaminase 2 Deficiency, and Coronary Heart Disease. Dr. Jehle is currently accepting new patients.

    Experienced in Atrial Septal Defect (ASD)
    Interventional Cardiology
    Experienced in Atrial Septal Defect (ASD)
    Interventional Cardiology
    Referral may be required
    500 West Broadway Street, Suite 320, 
    Missoula, MT 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Daniel Spoon is an Interventional Cardiologist practicing medicine in Missoula, Montana. Dr. Spoon is rated as an Experienced provider by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Coronary Heart Disease, Mitral Valve Regurgitation, Necrosis, Aortic Valve Replacement, and Transcatheter Aortic Valve Replacement (TAVR). Dr. Spoon is currently accepting new patients.

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

    Bozeman Health Cardiology Clinic

    937 Highland Blvd Ste 5510, 
    Bozeman, MT 
    Experience:
    17+ years
    Languages Spoken:
    English

    Preston Schneider is a Cardiologist practicing medicine in Bozeman, Montana. He has been practicing medicine for over 17 years. Dr. Schneider is rated as an Experienced provider by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 38 other conditions, according to our data. His clinical expertise encompasses Adenosine Deaminase 2 Deficiency, Arrhythmias, Familial Ventricular Tachycardia, and Atrial Fibrillation.

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

    Bozeman Health Cardiology Clinic

    937 Highland Blvd Ste 5510, 
    Bozeman,, MT 
    Languages Spoken:
    English

    Blair Erb is a Cardiologist practicing medicine in Bozeman,, Montana. Dr. Erb is rated as an Experienced provider by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 42 other conditions, according to our data. His clinical expertise encompasses Endocarditis, Arrhythmias, Familial Ventricular Tachycardia, and Atrial Fibrillation.

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

    Providence Health & Services Mt

    350 Heritage Way Ste 2100, 
    Kalispell,, MT 
    Languages Spoken:
    English
    Offers Telehealth

    Joseph Krezowski is a Cardiologist practicing medicine in Kalispell,, Montana. Dr. Krezowski is rated as an Experienced provider by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 39 other conditions, according to our data. His clinical expertise encompasses Aortic Regurgitation, Pediatric Myocarditis, Atrial Fibrillation, Angioplasty, and Pacemaker Implantation.

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

    Bozeman Health Cardiology Clinic

    937 Highland Blvd Ste 5510, 
    Bozeman, MT 
    Languages Spoken:
    English

    Dane Sobek is a Cardiologist practicing medicine in Bozeman, Montana. Dr. Sobek 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 Familial Progressive Cardiac Conduction Defect, Heart Attack, Apoplexy, Arrhythmias, and Pacemaker Implantation.

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

    Office

    435 S Crystal St Ste 220, 
    Butte, MT 
    Languages Spoken:
    English

    Krystoff Godlewski is a Cardiologist practicing medicine in Butte, Montana. Dr. Godlewski is rated as an Experienced provider by MediFind in the treatment of Atrial Septal Defect (ASD). His clinical expertise encompasses Atrial Fibrillation, Coronary Heart Disease, Atherosclerosis, Angina, and Pacemaker Implantation.

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

    Providence Health & Services Mt

    350 Heritage Way Ste 2100, 
    Kalispell,, MT 
    Languages Spoken:
    English
    Offers Telehealth

    Alexis Harrison is a Cardiologist practicing medicine in Kalispell,, Montana. Dr. Harrison is rated as an Experienced provider by MediFind in the treatment of Atrial Septal Defect (ASD). She is also highly rated in 41 other conditions, according to our data. Her clinical expertise encompasses Atrial Fibrillation, Pediatric Myocarditis, Aortic Regurgitation, Pacemaker Implantation, and Angioplasty.

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

    Providence Health & Services Mt

    350 Heritage Way Ste 2100, 
    Kalispell, MT 
    Languages Spoken:
    English
    Offers Telehealth

    Emily Hanson is a Cardiologist practicing medicine in Kalispell, Montana. Dr. Hanson is rated as an Experienced provider by MediFind in the treatment of Atrial Septal Defect (ASD). She is also highly rated in 11 other conditions, according to our data. Her clinical expertise encompasses Familial Ventricular Tachycardia, Arrhythmias, Catecholaminergic Polymorphic Ventricular Tachycardia, Pacemaker Implantation, and Cardiac Ablation.

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

    Providence Health & Services Mt

    350 Heritage Way Ste 2100, 
    Kalispell,, MT 
    Languages Spoken:
    English
    Offers Telehealth

    Eve Gillespie is a Cardiologist practicing medicine in Kalispell,, Montana. Dr. Gillespie is rated as an Experienced provider by MediFind in the treatment of Atrial Septal Defect (ASD). She is also highly rated in 37 other conditions, according to our data. Her clinical expertise encompasses Heart Failure with Preserved Ejection Fraction (HFpEF), Heart Failure, Pulmonary Edema, Pacemaker Implantation, and Cardiac Ablation.

    Showing 1-20 of 35

    Last Updated: 06/30/2026

    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 in Montana, US?

    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 in Montana, US?

    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 in Montana, US?

    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 in Montana, US?

    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 in Montana, US?

    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 in Montana, US?

    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 in Montana, US?

    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 

    Read more about our Content Policy.