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Dr. Gregory Marcus, MD

Dr. Gregory Marcus, MD

San Francisco, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Marcus, Clinical Cardiac Electrophysiologist in San Francisco, CA?

    Dr. Gregory Marcus, MD is a Clinical Cardiac Electrophysiologist, who primarily practices in San Francisco, CA. He is board certified by the American Board of Internal Medicine. Dr. Marcus completed his residency at Stanford Hospital and Clinics. Dr. Marcus is fluent in English, and is currently seeing new patients. Dr. Marcus’s practice accepts Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Marcus’s office at (415) 353-8870.

    Where did Dr. Marcus go to medical school and complete their residency?

    • Fellowship: Ucsf Med Center | UCSF Medical Center, Cardiac Electrophysiology

    • Residency: Stanford Hospital and Clinics | Ucsf Med Center

    Is Dr. Marcus board certified in Clinical Cardiac Electrophysiologist?

    Yes, Dr. Gregory Marcus, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Marcus speak?

    Dr. Marcus and their clinical team can communicate with patients in the following languages:

    • English

    What conditions does Dr. Marcus treat?

    As a Clinical Cardiac Electrophysiologist, Dr. Marcus 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. Marcus. 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.

    Also known as:

    • Atrial Fibrillation
    • Heart Palpitations
    • Arrhythmia
    • Premature Ventricular Contractions
    • Fast Heartbeat
    • Supraventricular Tachycardia
    • Atrial Flutter
    • Complete Heart Block
    • Afib
    • A-fib
    • Irregular heart rhythm
    • Skipped Heartbeat
    • Fluttering Heart
    • Pounding Heart
    • Persistent atrial fibrillation
    • Irregular heartbeat
    • Heart rhythm disorder
    • Cardiac dysrhythmia
    • PVCs
    • Ventricular Ectopic Beats
    • Skipped Heartbeat (Ventricular)
    • SVT
    • Rapid Heart Rate
    • Fast heart rate
    • Rapid heartbeat
    • A-flutter
    • Heart flutter
    • Rapid atrial rhythm
    • Complete AV Block
    • Third-Degree Heart Block

    ICD-10 Codes:

    • I480: Paroxysmal atrial fibrillation
    • I4891: Unspecified atrial fibrillation
    • R002: Palpitations
    • I4819: Other persistent atrial fibrillation
    • I499: Cardiac arrhythmia, unspecified
    • I493: Ventricular premature depolarization
    • I471: Supraventricular tachycardia
    • I4710: Supraventricular tachycardia, unspecified
    • I4892: Unspecified atrial flutter
    • I442: Atrioventricular block, complete

    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:

    • Abnormal EKG
    • Heart Health Tests
    • Irregular Electrocardiogram
    • Unusual Heart Rhythm Test
    • ECG Abnormalities

    ICD-10 Codes:

    • R9431: Abnormal electrocardiogram [ECG] [EKG]

    Also known as:

    • Chest Pain
    • Chest discomfort
    • Thoracic pain
    • Pectoral pain

    ICD-10 Codes:

    • R0789: Other chest pain

    Also known as:

    • Other Pacemaker Part Management
    • Pacemakers and Implantable Defibrillators
    • Pacemaker Lead Adjustment
    • Pacemaker Component Care
    • Cardiac Pacing Device Adjustment

    ICD-10 Codes:

    • Z45018: Encounter for adjustment and management of other part of cardiac pacemaker

    Also known as:

    • Pre-Procedure Heart Examination
    • Pre-Surgery Cardiac Checkup
    • Heart Health Assessment (Before Procedure)
    • Cardiovascular Clearance Exam

    ICD-10 Codes:

    • Z01810: Encounter for preprocedural cardiovascular examination

    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:

    • Fainting
    • Syncope
    • Passing out
    • Collapse

    ICD-10 Codes:

    • R55: Syncope and collapse

    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

    Which procedures does Dr. Marcus perform as a Clinical Cardiac Electrophysiologist?

    As a Clinical Cardiac Electrophysiologist, procedures performed by a Dr. Gregory Marcus may include:

    For detailed information, please contact Dr. Marcus' office.

    Does Dr. Marcus accept my insurance?

    Dr. Marcus accepts most major insurance plans. Important: Please call our office at (415) 353-8870 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Marcus accept in San Francisco, CA?

    Dr. Marcus in San Francisco, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • Alameda Alliance

    • All Other Third Party

    • Centene

    • CVS Health (formerly Aetna)

    • Health Plan of San Joaquin

    • Hill Physicians Medical Group

    • Medicare

    • Other Health Care Provider

    • Other Provider Networks

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Marcus' office located?

    Dr. Gregory Marcus' Primary Practice

    400 Parnassus Ave # 300

    San Francisco, CA 94143

    (415) 353-8870

    Get Directions

    What is Dr. Marcus's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

    Dr. Marcus's National Provider Identifier (NPI) number is 1891720579.

    What common questions do patients ask about Dr. Marcus?

    Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Marcus

    What is Dr. Gregory Marcus's specialty?

    Dr. Marcus is a Clinical Cardiac Electrophysiologist near San Francisco, CA. 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. Contact Dr. Marcus to book an appointment today.

    Is this Dr. Gregory Marcus affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Marcus is affiliated with Ucsf Medical Center At Parnassus which is a Castle Connolly Top Hospital. 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

    Where can I learn more about Clinical Cardiac Electrophysiologist?

    Explore Clinical Cardiac Electrophysiologist with 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 Gregory Marcus accepting new patients in San Francisco, CA?

    Yes, Dr. Gregory Marcus is accepting new patients at this time.

    Does Dr. Gregory Marcus offer online booking?

    Please contact Dr. Marcus's office at (415) 353-8870 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Gregory Marcus?

    Please contact Dr. Marcus's office at (415) 353-8870 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Gregory Marcus have?

    Dr. Gregory Marcus is certified by the American Board of Internal Medicine.

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