
- Telehealth Visits
- Insurances Accepted

Gregory M. Marcus, MD
Cardiology • Cardiology (Electrophysiology)- Telehealth Visits
- Insurances Accepted



Gregory M. Marcus, MD
Cardiology • Cardiology (Electrophysiology)- Telehealth Visits
- Insurances Accepted
On this page
About me
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
Board Certification
- Clinical Cardiac Electrophysiology, American Board of IM/Clinical Cardiac Electrophys
Fellowship
- Cardiac Electrophysiology, UCSF School of Medicine -GME
- Cardiovascular Disease, UCSF School of Medicine -GME
Residency
- Internal Medicine, Stanford University Medical Center-GME
School
- MD, George Washington University School of Medicine
Academic Title
- Professor-in-Residence
Care Keywords
Services
- Cardiology
- Cardiology (Electrophysiology)
Conditions
- Heart Failure
- Wolff-Parkinson-White Syndrome
- Ventricular Tachycardia
- Ventricular Fibrillation
- Atrial Flutter
- Atrial Fibrillation
- Atrioventricular Block
- Atrial Tachycardia
Treatments
- Pacemaker
Locations
Provider Research Listing
Browse clinical trials and publications by this provider
Clinical trials
Volunteers to Investigate Best Results for Ablation and Novel Therapies for Atrial FibrillationOpens in a new window
Recruiting
Time to atrial fibrillation, after employing a 3-month blanking period. Atrial Fibrillation Recurrence includes patient-reported symptoms of AF or Kardia-based...Full-Avoidance vs. Permissive/Regulated Drinking & Outcomes On FibrillationOpens in a new window
Recruiting
Participants will be wearing a continuously recording ECG monitor for two weeks. The primary outcome will be the presence (versus absence) of at least one AFib...Digitally Rendered Interventions And Knowledge To Limit Ethanol-Associated Atrial Fibrillation SeverityOpens in a new window
Recruiting
The primary outcome will be change in atrial fibrillation severity at one year, defined by a change in the Atrial Fibrillation Effect on Quality-of-Life Questi...Gauging Outcomes of Total Milk Ingestion on Lipid and gControlOpens in a new window
Recruiting
The primary outcome will be the hemoglobin A1c (HbA1c) measured at the end of each intervention period with whole-fat milk compared to skim milk during the enr...
Publications
In the news
Showing 1-6 of 21 reviews
- July 1, 20265 out of 5 Stars
Dr Marcus was explaining every issue in detail and was extremely friendly
- June 26, 20265 out of 5 Stars
Outstanding
- June 15, 20265 out of 5 Stars
Dr. Marcus was easy to talk to and very patient.
- May 3, 20265 out of 5 Stars
Provider was very knowledgeable and detailed oriented in re ailment and resolution with patience and care.
- April 17, 20265 out of 5 Stars
Could not be any better !!!! Above and beyond excellent !!
- March 14, 20265 out of 5 Stars
Dr Marcus is participative and takes the time to outline care strategies in an understandable way. Excellent doctor.
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