The 20 Best Timothy Syndrome Doctors Near Me in South Dakota, US

Find the Top Timothy Syndrome Experts and Specialists

Last Updated: 06/30/2026

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MediFind found 18 doctor with experience in Timothy Syndrome near South Dakota, US. Of these, 13 are Experienced and 5 are Advanced.

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18 providers found
    Experienced in Timothy Syndrome
    Experienced in Timothy Syndrome
    Referral may be required

    Avera Medical Group Cardiovascular Specialists — Aberdeen

    310 S Penn St, Suite 202, 
    Aberdeen, SD 
    Languages Spoken:
    English

    Dr. Gundewar is a family medicine physician at Avera Medical Group Cardiovascular Specialists Aberdeen. Dr. Gundewar is rated as an Experienced provider by MediFind in the treatment of Timothy Syndrome. He is also highly rated in 41 other conditions, according to our data. His clinical expertise encompasses Endocarditis, Coronary Heart Disease, Atherosclerosis, Pacemaker Implantation, and Angioplasty. Dr. Gundewar is board certified in ABMS Board Of Internal Medicine ABMS Board Of Internal Medicine - Cardiovascular Disease ABMS Board Of Internal Medicine - Interventional Cardiology/Certified.

    Experienced in Timothy Syndrome
    Hospital Medicine
    Experienced in Timothy Syndrome
    Hospital Medicine
    Referral may be required

    Avera McKennan Hospital & University Health Center

    1325 South Cliff Avenue, 
    Sioux Falls, SD 
    Languages Spoken:
    English

    Dr. Emad Beshai is a hospitalist at Avera McKennan Hospital in Sioux Falls. Dr. Beshai is rated as an Experienced provider by MediFind in the treatment of Timothy Syndrome. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Chronic Cough, Vertigo, Hypertension, Gastrostomy, and Colonoscopy. Dr. Beshai is board certified in American Board Of Internal Medicine.

    Experienced in Timothy Syndrome
    Pediatric Cardiology
    Experienced in Timothy Syndrome
    Pediatric Cardiology
    Referral may be required

    Avera Medical Group Pediatric Specialists — Plaza 1

    1417 S Cliff Ave Plaza 1, Suites 010 & 101 A, 
    Sioux Falls, SD 
    Languages Spoken:
    English

    Christopher Erickson is a Pediatric Cardiologist practicing medicine in Sioux Falls, South Dakota. Dr. Erickson is rated as an Experienced provider by MediFind in the treatment of Timothy Syndrome. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Wolff-Parkinson-White Syndrome, Hypertrophic Cardiomyopathy (HCM), Cardiomyopathy, Long QT Syndrome, and Thrombectomy.

    Learn about our expert tiers
    Experienced in Timothy Syndrome
    Interventional Cardiology | Cardiology
    Experienced in Timothy Syndrome
    Interventional Cardiology | Cardiology
    Referral may be required

    Sanford Chamberlain Clinic

    300 S. Byron Blvd., 
    Chamberlain, SD 
    Languages Spoken:
    English

    Dr. Adam Stys specializes in interventional cardiology. He treats heart conditions and performs minimally invasive heart procedures. His practice includes: Dr. Stys also serves as director of the Cardiovascular Disease Fellowship Program at the University of South Dakota Sanford School of Medicine. Dr. Stys is certified by the American Board of Nuclear Cardiology and the American Board of Vascular Medicine. Speaks: English. Dr. Stys is rated as an Experienced provider by MediFind in the treatment of Timothy Syndrome. He is also highly rated in 58 other conditions, according to our data. His clinical expertise encompasses Heart Attack, Coronary Heart Disease, Angina, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement. Dr. Stys is board certified in American Board Of Internal Medicine: Cardiovascular DiseaseAmerican Board Of Internal Medicine: Interventional CardiologyAmerican Board Of Internal Medicine.

    Experienced in Timothy Syndrome
    Cardiology | Interventional Cardiology
    Experienced in Timothy Syndrome
    Cardiology | Interventional Cardiology
    Referral may be required

    Sanford Heart Hospital

    1301 W. 18th St., 
    Sioux Falls, SD 
    Languages Spoken:
    English

    Dr. Tom Stys specializes in interventional cardiology. He offers various surgical and non-surgical options to treat heart conditions. Dr. Stys also serves as medical director of Sanford Health cardiology services and as a professor at the University of South Dakota Sanford School of Medicine. Speaks: English. Dr. Stys is rated as an Experienced provider by MediFind in the treatment of Timothy Syndrome. He is also highly rated in 61 other conditions, according to our data. His clinical expertise encompasses Coronary Heart Disease, Heart Attack, Rheumatic Fever, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement. Dr. Stys is board certified in American Board Of Internal Medicine: Interventional CardiologyAmerican Board Of Internal Medicine: Cardiovascular Disease.

    Experienced in Timothy Syndrome
    Experienced in Timothy Syndrome
    Referral may be required

    Burke Medical Clinic

    809 Jackson St., 
    Burke, SD 
    Languages Spoken:
    English

    Dr. Richard Clark specializes in heart care. He is a clinical associate professor of medicine at the University of South Dakota Sanford School of Medicine and is the director of cardiac rehab at the Sanford Heart Hospital. Dr. Clark also provides outreach care through Douglas County Memorial Hospital in Armour, South Dakota. Speaks: English. Dr. Clark is rated as an Experienced provider by MediFind in the treatment of Timothy Syndrome. He is also highly rated in 39 other conditions, according to our data. His clinical expertise encompasses Coronary Heart Disease, Angina, Pediatric Myocarditis, Atherosclerosis, and Pacemaker Implantation. Dr. Clark is board certified in American Board Of Internal Medicine: Cardiovascular DiseaseAmerican Board Of Internal Medicine: Internal Medicine.

    Advanced in Timothy Syndrome
    Internal Medicine
    Advanced in Timothy Syndrome
    Internal Medicine

    Sanford Internal Medicine Clinic

    1321 W. 22nd St., 
    Sioux Falls, SD 
    Languages Spoken:
    English

    Dr. Mark Lounsbery provides general health care services to adult patients ages 18 and older. He assists patients in managing complex health issues, diagnosing conditions and providing preventive care. He provides a variety of services to adult patients, including preventive health exams and medication management. Dr. Lounsbery treats diabetes, gastrointestinal issue, high blood pressure, heart disease and thyroid disease. He is also a clinical associate professor at the University of South Dakota Sanford School of Medicine. Speaks: English. Dr. Lounsbery is rated as an Advanced provider by MediFind in the treatment of Timothy Syndrome. He is also highly rated in 24 other conditions, according to our data. His clinical expertise encompasses Hypertension, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and Familial Combined Hyperlipidemia. Dr. Lounsbery is board certified in American Board Of Internal Medicine.

    Advanced in Timothy Syndrome
    Internal Medicine
    Advanced in Timothy Syndrome
    Internal Medicine

    Sanford Internal Medicine Clinic

    1321 W. 22nd St., 
    Sioux Falls, SD 
    Languages Spoken:
    English

    Robert Behrend, MD, FACP, is an internal medicine doctor. He provides care in the following areas: Colds & flu Diabetes Gastrointestinal issues Heart disease High blood pressure Hyperlipidemia Medication management Preventive health exams Thyroid disease In addition to his medical work, Dr. Behrend also serves as a clinical associate professor at the University of South Dakota Sanford School of Medicine. Speaks: English. Dr. Behrend is rated as an Advanced provider by MediFind in the treatment of Timothy Syndrome. He is also highly rated in 30 other conditions, according to our data. His clinical expertise encompasses Hypertension, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and Sciatica. Dr. Behrend is board certified in American Board Of Internal Medicine.

    Advanced in Timothy Syndrome
    Internal Medicine
    Advanced in Timothy Syndrome
    Internal Medicine

    Sanford Internal Medicine Clinic

    1321 W. 22nd St., 
    Sioux Falls, SD 
    Languages Spoken:
    English

    Dr. David Nelson practices internal medicine. He provides primary care and general health services to adult patients ages 18 and older. He treats: He also offers preventive health exams and medication management. Dr. Nelson serves as a clinical associate professor at the University of South Dakota Sanford School of Medicine. Speaks: English. Dr. Nelson is rated as an Advanced provider by MediFind in the treatment of Timothy Syndrome. He is also highly rated in 36 other conditions, according to our data. His clinical expertise encompasses Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, Hypertension, and Sciatica. Dr. Nelson is board certified in American Board Of Internal Medicine.

    Advanced in Timothy Syndrome
    Internal Medicine
    Advanced in Timothy Syndrome
    Internal Medicine

    Sanford Executive Health Center

    1420 W. 22nd Street, 
    Sioux Falls, SD 
    Languages Spoken:
    English

    Dr. Eric Larson practices internal medicine, providing primary care for adult patients ages 18 and older. He provides: He also provides treatment for: He also serves as the transitional year program director at the University of South Dakota Sanford School of Medicine and an academic associate professor at the University of South Dakota Sanford School of Medicine. Speaks: English. Dr. Larson is rated as an Advanced provider by MediFind in the treatment of Timothy Syndrome. He is also highly rated in 35 other conditions, according to our data. His clinical expertise encompasses Sciatica, Diabetic Hyperglycemic Hyperosmolar Syndrome, Hypertension, and Glucocorticoid-Remediable Aldosteronism. Dr. Larson is board certified in American Board Of Internal MedicineAmerican Board Of Internal Medicine: Hospice And Palliative Medicine.

    Advanced in Timothy Syndrome
    Internal Medicine
    Advanced in Timothy Syndrome
    Internal Medicine

    Sanford Internal Medicine Clinic

    1321 W. 22nd St., 
    Sioux Falls, SD 
    Languages Spoken:
    English

    Sara Ruter, MD, specializes in general internal medicine. She treats hyperlipidemia, colds & flu, diabetes, gastrointestinal issues, hypertension, heart disease, thyroid disease, weight loss, joint injections and minor skin procedures. She offers services for adult patients age 18 and older in managing complex health issues, uncovering diagnosis and providing preventive care. She also serves as a clinical associate professor at University of South Dakota Sanford School of Medicine. Speaks: English. Dr. Ruter is rated as an Advanced provider by MediFind in the treatment of Timothy Syndrome. She is also highly rated in 32 other conditions, according to our data. Her clinical expertise encompasses Glucocorticoid-Remediable Aldosteronism, Hypertension, Familial Hypertension, Type 1 Diabetes (T1D), and Tissue Biopsy. Dr. Ruter is board certified in American Board Of Internal Medicine.

    Experienced in Timothy Syndrome
    Internal Medicine
    Experienced in Timothy Syndrome
    Internal Medicine

    Avera McKennan Hospital And University Health Center

    1325 S Cliff Ave, 
    Sioux Falls, SD 
    Languages Spoken:
    English

    Ananta Subedi is a primary care provider, practicing in Internal Medicine in Sioux Falls, South Dakota. Dr. Subedi is rated as an Experienced provider by MediFind in the treatment of Timothy Syndrome. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Acquired Methemoglobinemia, Sepsis, Stroke, Tissue Biopsy, and Gastrostomy.

    Experienced in Timothy Syndrome
    Internal Medicine
    Experienced in Timothy Syndrome
    Internal Medicine

    Sanford Internal Medicine Clinic

    1321 W. 22nd St., 
    Sioux Falls, SD 
    Languages Spoken:
    English

    Ukamaka Nwadibia, MD, practices internal medicine. She currently treats the following conditions: Dr. Nwadibia provides general health care services for adults by assisting patients in managing complex health issues, uncovering diagnosis, providing preventive care and integrating Sanford Imagenetics genetic medicine into everyday primary care. Speaks: English. Dr. Nwadibia is rated as an Experienced provider by MediFind in the treatment of Timothy Syndrome. She is also highly rated in 7 other conditions, according to our data. Her clinical expertise encompasses Hypertension, Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, and Familial Combined Hyperlipidemia. Dr. Nwadibia is board certified in American Board Of Internal Medicine.

    Experienced in Timothy Syndrome
    Cardiac Electrophysiology
    Experienced in Timothy Syndrome
    Cardiac Electrophysiology
    Referral may be required

    Sanford Cardiovascular Institute

    1301 W. 18th St., 
    Sioux Falls, SD 
    Languages Spoken:
    English

    Dr. Scott Pham is a cardiologist and cardiac electrophysiologist, specializing in studying the electrical activity of the heart. The services he provides include: Dr. Pham also serves a reviewer for the Journal of Interventional Electrophysiology and is a fellow of the Heart Rhythm Society. Dr. Pham also provides services at Prairie Lakes Healthcare System in Watertown, South Dakota. Speaks: English. Dr. Pham is rated as an Experienced provider by MediFind in the treatment of Timothy Syndrome. He is also highly rated in 42 other conditions, according to our data. His clinical expertise encompasses Pediatric Myocarditis, Aortic Regurgitation, Atrial Fibrillation, Pacemaker Implantation, and Cardiac Ablation. Dr. Pham is board certified in American Board Of Internal Medicine: Cardiac ElectrophysiologyAmerican Board Of Internal Medicine: Cardiovascular DiseaseAmerican Board Of Internal Medicine: Internal Medicine.

    Experienced in Timothy Syndrome
    Experienced in Timothy Syndrome
    Referral may be required

    North Central Heart

    4520 W 69th St, 
    Sioux Falls, SD 
    Languages Spoken:
    English

    Orvar Jonsson, MD is a cardiologist at North Central Heart and Avera Heart Hospital in Sioux Falls, SD. Dr. Jonsson is rated as an Experienced provider by MediFind in the treatment of Timothy Syndrome. He is also highly rated in 40 other conditions, according to our data. His clinical expertise encompasses Heart Failure, Adenosine Deaminase 2 Deficiency, Pulmonary Hypertension, Pacemaker Implantation, and Endoscopy. Dr. Jonsson is board certified in American Boards Of Internal Medicine American Boards Of Internal Medicine – Cardiovascular Diseases Board Certification In Nuclear Cardiology, CNBC  American Boards Of Internal Medicine – Advanced Heart Failure And Transplant.

    Experienced in Timothy Syndrome
    Internal Medicine
    Experienced in Timothy Syndrome
    Internal Medicine

    Yankton Medical Clinic Avera

    1104 West 8th Street, 
    Yankton, SD 
    Languages Spoken:
    English
    Offers Telehealth

    Fanta is an internal medicine physician at Yankton Medical Clinic. Dr. Fanta is rated as an Experienced provider by MediFind in the treatment of Timothy Syndrome. She is also highly rated in 29 other conditions, according to our data. Her clinical expertise encompasses Acute Coronary Syndrome, Pediatric Myocarditis, Osteomyelitis in Children, Myelodysplastic Syndrome (MDS), and Endoscopy. Dr. Fanta is board certified in American Board Of Internal Medicine.

    Experienced in Timothy Syndrome
    Internal Medicine
    Experienced in Timothy Syndrome
    Internal Medicine

    Office

    1420 W 22nd St Ste 510, 
    Sioux Falls, SD 
    Languages Spoken:
    English

    Allen Funk is a primary care provider, practicing in Internal Medicine in Sioux Falls, South Dakota. Dr. Funk is rated as an Experienced provider by MediFind in the treatment of Timothy Syndrome. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Chronic Cough, Hypertension, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism.

    Experienced in Timothy Syndrome
    Internal Medicine
    Experienced in Timothy Syndrome
    Internal Medicine

    Office

    1420 W 22nd St Ste 510, 
    Sioux Falls, SD 
    Languages Spoken:
    English

    Candace Zeigler is a primary care provider, practicing in Internal Medicine in Sioux Falls, South Dakota. Dr. Zeigler is rated as an Experienced provider by MediFind in the treatment of Timothy Syndrome. She is also highly rated in 7 other conditions, according to our data. Her clinical expertise encompasses Osmotic Diuresis, Coronary Heart Disease, Hypertension, and Familial Hypertension.

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    Last Updated: 06/30/2026

    What is the definition of Timothy Syndrome?

    Timothy syndrome is a disorder that affects the heart, digits (toes and fingers), and nervous system (brain and nerves). It is a type of long QT syndrome. Long QT syndrome refers to a prolonged QT interval measurement seen on the electrocardiogram. Symptoms of Timothy syndrome include fusion of the skin between fingers or toes (syndactyly), distinctive facial features, and congenital heart defects. Additional symptoms may include developmental delay, intellectual disability, and autism spectrum disorders. There are two forms of Timothy syndrome, classified based on signs and symptoms. Type 1, known as classic type, includes all of the symptoms described above. Type 2, or atypical type, causes a more severe form of long QT syndrome and does not appear to include syndactyly. Both types are caused by genetic changes in the CACNA1C gene and are inherited in an autosomal dominant manner.

    When should I see a Timothy Syndrome doctor in South Dakota, 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 a Timothy Syndrome doctor in South Dakota, 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 Timothy Syndrome doctors in South Dakota, 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 Timothy Syndrome doctors in South Dakota, 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 a Timothy Syndrome doctor in South Dakota, 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 Timothy Syndrome doctor search results page. 

    Why is it important to get a second opinion from a different Timothy Syndrome 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 Timothy Syndrome doctor in South Dakota, 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 Timothy Syndrome 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 Timothy Syndrome 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 Timothy Syndrome doctors in South Dakota, US?

    Look for the filter feature on the left side of the Timothy Syndrome 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 Timothy Syndrome doctor that offers video calls?

    Look for the filter feature on the left-side of the Timothy Syndrome 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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