Gregory M. Marcus

MD

Cardiologist and electrophysiologist

Dr. Gregory Marcus is a cardiologist and electrophysiologist who specializes in the diagnosis and treatment of arrhythmias, including cardiac mapping and catheter ablation for atrial fibrillation, supraventricular tachycardias and ventricular arrhythmias. He is also an expert in implanting pacemakers, biventricular devices and defibrillators.

In his research, Marcus studies heart rhythm disturbances, and the health effects of common lifestyle factors such as alcohol, caffeine, smoking and other substances, and leads several large projects to use sensors, smart phones and other technologies to conduct clinical research.

Marcus earned his medical degree from George Washington University School of Medicine & Health Sciences. He completed his residency at Stanford Medicine. He then completed his training in cardiovascular medicine and cardiovascular electrophysiology at UCSF.

  • Education

    George Washington University School of Medicine, 1998

  • Residencies

    Stanford Hospital and Clinics, Internal Medicine, 2002

    UCSF Medical Center, Cardiology, 2004

  • Fellowships

    UCSF Medical Center, Cardiac Electrophysiology, 2006

  • Board Certifications

    Clinical Cardiac Electrophysiology, American Board of Internal Medicine

  • Academic Title

    Professor

Conditions I specialize in

Treatments I provide

Where I see patients (2)

    My reviews

    4.9

    Overall Experience
    91 Ratings
    Explained things in a way that was easy to understand
    90 Ratings
    Did the doctor pay attention to your concerns
    91 Ratings
    Gave easy to understand instructions about taking care of health problems or concerns
    86 Ratings
    Knew the important information about your medical history
    91 Ratings
    The provider showed respect for what you had to say
    90 Ratings
    The provider spent enough time with me
    91 Ratings
    Read all reviews About our process

    Selected research

    Decorative Caduceus

    Transseptal vs Retrograde Aortic Ventricular Entry to Reduce Systemic Emboli

    incidence of new cerebral embolic lesions measured by magnetic resonance imaging (MRI) post-ablation as compared to pre-ablation imaging studies

    Recruiting

    My work

    UCSF study on marijuana legalization finds uptick in drug abuse, decrease in chronic pain reports

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    Providers on my team

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