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Gregory M. Marcus, MD
Electrophysiology • Cardiology- Telehealth Visits
- Insurance plan information
Gregory M. Marcus, MD
Electrophysiology • Cardiology- Telehealth Visits
- Insurance plan information
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 & training
Board certification
- Clinical Cardiac Electrophysiology, American Board of IM/Clinical Cardiac Electrophys
Fellowship
- Cardiac Electrophysiology, UCSF Graduate Medical Education
- Cardiovascular Disease, UCSF Graduate Medical Education
Residency
- Internal Medicine, Stanford University Medical Center-GME
Degree
- MD, George Washington University School of Medicine
My expertise
Locations
UCSF study on marijuana legalization finds uptick in drug abuse, decrease in chronic pain reports
My research
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…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…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…Gauging Outcomes of Total Milk Ingestion on Lipid and gControlOpens in a new window
Recruiting
The primary outcome will be a difference in hemoglobin A1c (HbA1c) with whole-fat milk compared to skim milk during the enrollment period.
Publications
Links of interest
Showing 1-6 of 14 reviews
- December 19, 20255 out of 5 Stars
Always a positive experience
- October 19, 20255 out of 5 Stars
Dr Marcus is very friendly, attentive, knowledgeable, and willing to help. He listened carefully and answered my questions thoroughly. He is considerate, encouraging and provided options for the management and helped me to choose at my comfort level. Previously he answered my questions promptly on MyChart. He is wonderful!
- July 11, 20255 out of 5 Stars
Very good and helpful experience
- March 18, 20255 out of 5 Stars
Very satisfied with the care and the service
- February 3, 20255 out of 5 Stars
Dr. Marcus (as always) provided a high-level of professional medical advice which made a difference to me in that it was the basis on which I changed my thinking and resulted in a direction in change of care on my part. The conversation was much appreciated.
- December 6, 20245 out of 5 Stars
I asked the doctor whether it would be safe to stop taking a blood thinner (Eliquis). He discussed the pros and cons and offered to consult with his colleagues as it was a judgment call. He got back to me (through My Chart) that same day with a recommendation. Amazing!
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