
30 Years of Experience
Accepting patients
Who is Dr. Chun, Clinical Cardiac Electrophysiologist in Palo Alto, CA?
Dr. Sung Chun, MD is a Clinical Cardiac Electrophysiologist, who primarily practices in Palo Alto, CA with 2 additional practice locations. He has been practicing for over 30 years and is board certified. Dr. Chun graduated from Mechanical Engineering and completed his residency at Stanford Univ Hosp, Cardiac Electrophysiology Vet Affairs Med Ctr-W La, Internal Medicine. He is a member of the American Heart Association, Heart Rhythm Society and American College of Cardiology. Dr. Chun is fluent in English and Korean, and is currently seeing new patients. Dr. Chun’s practice accepts Kaiser Permanente, Medicare, Aetna, Cigna, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Chun’s office at (650) 321-4121.
What are Areas of Expertise for Dr. Chun?
Dr. Sung Chun, MD is a highly-rated, board-certified Clinical Cardiac Electrophysiologist known for expertly diagnosing, treating, and managing a wide array of related conditions and procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Chun empowers patients to confidently navigate their health journey, specializing in Arrhythmias, Atrial Fibrillation, Defibrillator Cable Extraction, Pacemakers/Defibrillators, Radiofrequency Ablation, and comprehensive wellness support. Serving the Palo Alto, CA community, Dr. Chun is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Chun go to medical school and complete their residency?
Fellowship: Cardiology and electrophysiology
Residency: Stanford Univ Hosp, Cardiac Electrophysiology Vet Affairs Med Ctr-W La, Internal Medicine | University of California, Los Angeles (UCLA) Affiliated Hospitals | Harbor-UCLA Medical Center
Medical School: Mechanical Engineering
Is Dr. Chun board certified as a Clinical Cardiac Electrophysiologist?
Yes, Dr. Sung Chun, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Chun speak?
Dr. Chun and their clinical team can communicate with patients in the following languages:
English
Korean
What conditions does a Clinical Cardiac Electrophysiologist like Dr. Chun typically treat?
As a Clinical Cardiac Electrophysiologist, Dr. Chun 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. Chun. 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:
- Having a Pacemaker
- Having an Implantable Cardiac Defibrillator (ICD)
- Pacemakers and Implantable Defibrillators
- Heart pacemaker
- Artificial pacemaker
- Implanted heart device
- ICD implant
- Automatic defibrillator
- Implanted heart shock device
ICD-10 Codes:
- Z950: Presence of cardiac pacemaker
- Z95810: Presence of automatic (implantable) cardiac defibrillator
Also known as:
- Atrial Fibrillation
- Sick Sinus Syndrome
- Arrhythmia
- Sick sinus syndrome
- Afib
- A-fib
- Irregular heart rhythm
- Persistent atrial fibrillation
- Sinus Node Dysfunction
- Bradycardia-Tachycardia Syndrome
- SSS
ICD-10 Codes:
- I480: Paroxysmal atrial fibrillation
- I4819: Other persistent atrial fibrillation
- I495: Sick sinus syndrome
Also known as:
- Other Cardiac Implants
- Heart Devices
- Cardiac Grafts
- Implantable Heart Devices
ICD-10 Codes:
- Z95818: Presence of other cardiac implants and grafts
Also known as:
- Chest Pain
- Chest discomfort
- Thoracic pain
- Upper body pain
ICD-10 Codes:
- R079: Chest pain, unspecified
What procedures does a Clinical Cardiac Electrophysiologist like Dr. Chun typically perform?
As a Clinical Cardiac Electrophysiologist, Dr. Chun performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Chun. 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:
- Subcutaneous Cardiac Rhythm Monitor Insertion
- Implantable Loop Recorder Insertion
- Under-Skin Heart Monitor
- Cardiac Event Recorder Implant
CPT Codes:
- 33285: Insertion, subcutaneous cardiac rhythm monitor, including programming
Does Dr. Chun accept my insurance?
Dr. Chun accepts most major insurance plans. Important: Please call our office at (650) 321-4121 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Chun accept in Palo Alto, CA?
Dr. Chun in Palo Alto, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Alignment Healthcare
All Other Third Party
Centene Corporation
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
OptumRx Administered Payer
State of California
Sutter Health
UnitedHealth Group
Valley Health Plan
View All Insurances
Where is Dr. Chun's office located?
Recognitions
Memberships & Associations
American Heart Association, Heart Rhythm Society and American College of Cardiology
Member
What is Dr. Chun's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Chun's National Provider Identifier (NPI) number is 1477640381.
What common questions do patients ask about Dr. Chun?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Chun
What is Dr. Sung Chun's specialty?
Dr. Chun is a Clinical Cardiac Electrophysiologist near Palo Alto, CA.
What does a Clinical Cardiac Electrophysiologist do?
A specialized domain within the cardiovascular disease subspecialty of Internal Medicine that involves advanced technical procedures to evaluate heart rhythms and determine the most appropriate treatments.
Is this Dr. Sung Chun affiliated with a ranked Castle Connolly Top Hospital?
No, Chun is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: El Camino Health - Mountain View 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 Clinical Cardiac Electrophysiologist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a Clinical Cardiac Electrophysiologist. 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 Sung Chun accepting new patients in Palo Alto, CA?
Yes, Dr. Sung Chun is accepting new patients at this time.
Does Dr. Sung Chun offer online booking?
Please contact Dr. Chun's office at (650) 321-4121 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Sung Chun?
Please contact Dr. Chun's office at (650) 321-4121 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Sung Chun have?
Dr. Sung Chun is certified by the American Board of Internal Medicine.
Other Clinical Cardiac Electrophysiologist Near Palo Alto, CA

Clinical Cardiac Electrophysiologist
Dr. Matthew Levy, MD is a Clinical Cardiac Electrophysiologist, who primarily practices in San Jose, CA with 2 additional practice locations. He has been practicing for over 24 years and is board certified.
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Clinical Cardiac Electrophysiologist
Dr. Girish Narayan, MD is a Clinical Cardiac Electrophysiologist, who primarily practices in Palo Alto, CA with 2 additional practice locations.
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CW
Clinical Cardiac Electrophysiologist
Dr. Christopher Woods, MD is a Clinical Cardiac Electrophysiologist, who primarily practices in Palo Alto, CA with 2 additional practice locations.
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