
46 Years of Experience
Accepting patients
Who is Dr. Nielsen, Cardiologist in Houston, TX?
Dr. Anton Nielsen, MD is a Cardiologist, who primarily practices in Houston, TX with 1 additional practice location. He has been practicing for over 46 years and is board certified. Dr. Nielsen completed his residency at Baylor Coll Of Med, Cardiovascular Diseases; Duke Univ Med Ctr, Internal Medicine; Duke Univ Med Ctr, Flexible Or Transitional Year. Dr. Nielsen is fluent in English and Spanish, and is currently seeing new patients. To book an appointment or to confirm insurance options, please call Dr. Nielsen’s office at (713) 441-9909.
Where did Dr. Nielsen go to medical school and complete their residency?
Residency: Baylor Coll Of Med, Cardiovascular Diseases; Duke Univ Med Ctr, Internal Medicine; Duke Univ Med Ctr, Flexible Or Transitional Year | Baylor College Of Med
Is Dr. Nielsen board certified as a Cardiologist?
Yes, Dr. Anton Nielsen, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Nielsen speak?
Dr. Nielsen and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does a Cardiologist like Dr. Nielsen typically treat?
As a Cardiologist, conditions treated by Dr. Anton Nielsen may include:
- Arrhythmia
- Atherosclerosis
- Atrial Fibrillation
- Carotid Stenosis
- Coronary Heart Disease
- Endocarditis
- Heart Attack
- Heart Disease
Please contact Dr. Nielsen's office directly to confirm care for your specific condition, for more information, or to schedule a consultation.
What procedures does a Cardiologist like Dr. Nielsen typically perform?
As a Cardiologist, procedures performed by Dr. Anton Nielsen may include:
- Absent Pulmonary Valve Repair
- Anomalous Coronary Artery Angiography
- Anticoagulation Management
- Aortic Stenosis Repair
- Aortic Valve Repair / Replacement
- Aortopulmonary Window Repair
- Arterial Doppler
- Balloon Septostomy
Please contact Dr. Nielsen's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.
Does Dr. Nielsen accept my insurance?
Please contact Dr. Nielsen's office to confirm accepted insurance plans.
Where is Dr. Nielsen's office located?
Dr. Anton Nielsen's Primary Practice
18220 Tomball Pkwy Ste 400
Houston, TX 77070
(713) 441-9909
What is Dr. Nielsen's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Nielsen's National Provider Identifier (NPI) number is 1457315632.
What common questions do patients ask about Dr. Nielsen?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Nielsen
What is Dr. Anton Nielsen's specialty?
Dr. Nielsen is a Cardiologist near Houston, TX.
What does a Cardiologist do?
An internist specializing in cardiovascular diseases focuses on the diagnosis and management of complex heart and blood vessel conditions, including heart attacks and life-threatening arrhythmias.
Is this Dr. Anton Nielsen affiliated with a ranked Castle Connolly Top Hospital?
No, Nielsen is not affiliated with a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
When to see a Cardiologist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a Cardiologist. Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Anton Nielsen accepting new patients in Houston, TX?
Yes, Dr. Anton Nielsen is accepting new patients at this time.
Does Dr. Anton Nielsen offer online booking?
Please contact Dr. Nielsen's office at (713) 441-9909 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Anton Nielsen?
Please contact Dr. Nielsen's office at (713) 441-9909 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Anton Nielsen have?
Dr. Anton Nielsen is certified by the American Board of Internal Medicine.
Other Cardiologist Near Houston, TX

Dr. Maged Amine, MD is an Interventional Cardiologist, who primarily practices in Houston, TX with 2 additional practice locations. He has been practicing for over 34 years and is board certified.
Houston, TX
FA
Cardiologist
Dr. Faisal Arain, MD is a Cardiologist, who primarily practices in Houston, TX with 1 additional practice location.
Houston, TX

Cardiologist
Dr. Aditya Samal, MD is a Cardiologist, who primarily practices in Houston, TX.
Houston, TX