SH
21 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Horn, Cardiologist in Williamsville, NY?
Dr. Steven Horn, MD is a Cardiologist, who primarily practices in Williamsville, NY with 1 additional practice location. He has been practicing for over 21 years and is board certified. Dr. Horn completed his residency at Suny Buffalo Grad Med-Dent, Cardiovascular Diseases. Dr. Horn is fluent in English, and is currently seeing new patients. Dr. Horn’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Horn’s office at (716) 580-3810.
Where did Dr. Horn go to medical school and complete their residency?
Residency: Suny Buffalo Grad Med-Dent, Cardiovascular Diseases
Medical School: University At Buffalo SUNY School Of Med and Biomedical Sciences Buffalo Ny
Is Dr. Horn board certified as a Cardiologist?
Yes, Dr. Steven Horn, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Horn speak?
Dr. Horn and their clinical team can communicate with patients in the following languages:
English
What conditions does a Cardiologist like Dr. Horn typically treat?
As a Cardiologist, Dr. Horn diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Horn. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Hardening of the Arteries in the Heart without Chest Pain
- Atherosclerosis
- Coronary Artery Disease
- Silent Coronary Artery Disease
- Asymptomatic Atherosclerosis
ICD-10 Codes:
- I2510: Atherosclerotic heart disease of native coronary artery without angina pectoris
Also known as:
- Atrial Fibrillation
- Afib
- A-fib
- Irregular heart rhythm
ICD-10 Codes:
- I480: Paroxysmal atrial fibrillation
Also known as:
- High Blood Pressure
- Hypertension
- Primary Hypertension
- Essential Hypertension
ICD-10 Codes:
- I10: Essential (primary) hypertension
Also known as:
- Shortness of Breath
- Breathing Problems
- Difficulty breathing
- Breathlessness
- Dyspnea
ICD-10 Codes:
- R0602: Shortness of breath
What procedures does a Cardiologist like Dr. Horn typically perform?
As a Cardiologist, procedures performed by Dr. Steven Horn 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. Horn's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.
Does Dr. Horn accept my insurance?
Dr. Horn accepts most major insurance plans. Important: Please call our office at (716) 580-3810 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Horn accept in Williamsville, NY?
Dr. Horn in Williamsville, NY accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Cigna Group
CVS Health (formerly Aetna)
EmblemHealth
Highmark Health
Independent Health Association
Lifetime Healthcare
Martin's Point
Medicare
UnitedHealth Group
Unknown
View All Insurances
Where is Dr. Horn's office located?
Dr. Steven Horn's Primary Practice
5530 Sheridan Dr Ste 2
Williamsville, NY 14221
(716) 580-3810
What is Dr. Horn's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Horn's National Provider Identifier (NPI) number is 1457324469.
What common questions do patients ask about Dr. Horn?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Horn
What is Dr. Steven Horn's specialty?
Dr. Horn is a Cardiologist near Williamsville, NY.
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. Steven Horn affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Horn is affiliated with Mount St. Mary’s Hospital, Kenmore Mercy Hospital, Mercy Hospital Of Buffalo which are a Castle Connolly Top Hospitals. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They 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 Steven Horn accepting new patients in Williamsville, NY?
Yes, Dr. Steven Horn is accepting new patients at this time.
Does Dr. Steven Horn offer online booking?
Please contact Dr. Horn's office at (716) 580-3810 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Steven Horn?
Please contact Dr. Horn's office at (716) 580-3810 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Steven Horn have?
Dr. Steven Horn is certified by the American Board of Internal Medicine.
Other Cardiologist Near Williamsville, NY
DC
Cardiologist
Dr. David Carlson, MD is a Cardiologist, who primarily practices in Williamsville, NY with 1 additional practice location.
Williamsville, NY

Internist
Dr. Salvatore Calandra, MD is an Internist, who primarily practices in Williamsville, NY with 1 additional practice location. He is board certified.
Williamsville, NY
DC
Cardiologist
Dr. Dennis Chugh, MD is a Cardiologist, who primarily practices in Amherst, NY with 1 additional practice location. He has been practicing for over 25 years and is board certified.
Amherst, NY