Gregory Marcus, MD

Cardiologist and electrophysiologist

Dr. Gregory Marcus is a specialist in the treatment of arrhythmias, including mapping and catheter ablation for atrial fibrillation, supraventricular tachycardias and ventricular arrhythmias. He is also an expert in pacemaker, biventricular device and defibrillator implantation. Marcus also researches atrial arrhythmias, specifically serologic markers and genetic factors important to the disease. He is the principle investigator on research grants awarded by the National Institutes of Health and the American Heart Association.

Marcus earned his medical degree from George Washington University School of Medicine and Health Sciences. He completed an internship and residency in medicine at Stanford University Medical Center. Marcus then completed his training in cardiovascular medicine and cardiovascular electrophysiology at UCSF, where he is a professor of medicine.


Cardiac Electrophysiology and Arrhythmia Service
400 Parnassus Ave., Fifth Floor
San Francisco, CA 94143
Phone: (415) 353-2554
Fax: (415) 353-2528

Hours: Monday to Friday
8 a.m. – 5 p.m.

Cardiovascular Genetics Program
400 Parnassus Avenue, Plaza Level, Room 94
San Francisco, CA 94143
Phone: (415) 353-2873
Fax: (415) 476-5355

Hours: Monday
noon – 4 p.m

Conditions & Treatments

Academic Title


More about Gregory Marcus


George Washington University School of Medicine 1998


Stanford Hospital and Clinics, Internal Medicine 2002
UCSF Medical Center, Cardiology 2004


UCSF Medical Center, Cardiac Electrophysiology 2006

Selected Research and Publications

  1. Dixit S, Alonso A, Vittinghoff E, Soliman E, Chen LY, Marcus GM. Past alcohol consumption and incident atrial fibrillation: The Atherosclerosis Risk in Communities (ARIC) Study. PLoS One. 2017; 12(10):e0185228.
  2. Grandis DJ, Nah G, Whitman IR, Vittinghoff E, Dewland TA, Olgin JE, Marcus GM. Wilson's Disease and Cardiac Myopathy. Am J Cardiol. 2017 Dec 01; 120(11):2056-2060.
  3. Nguyen KT, Vittinghoff E, Dewland TA, Dukes JW, Soliman EZ, Stein PK, Gottdiener JS, Alonso A, Chen LY, Psaty BM, Heckbert SR, Marcus GM. Ectopy on a Single 12-Lead ECG, Incident Cardiac Myopathy, and Death in the Community. J Am Heart Assoc. 2017 Aug 03; 6(8).
  4. Lee BK, Marcus GM. For cryoballoon ablation, time to effect is time well spent. Heart Rhythm. 2017 Sep; 14(9):1326-1327.
  5. Rivas DE, Borot A, Cardenas DE, Marcus G, Gu X, Herrmann D, Xu J, Tan J, Kormin D, Ma G, Dallari W, Tsakiris GD, Földes IB, Chou SW, Weidman M, Bergues B, Wittmann T, Schröder H, Tzallas P, Charalambidis D, Razskazovskaya O, Pervak V, Krausz F, Veisz L. Next Generation Driver for Attosecond and Laser-plasma Physics. Sci Rep. 2017 Jul 12; 7(1):5224.
  6. Dewland TA, Oesterle A, Stein J, Marcus GM. Health care utilization among adenosine-sensitive supraventricular tachycardia patients presenting to the emergency department. J Interv Card Electrophysiol. 2017 Aug; 49(2):103-109.
  7. Guo X, Vittinghoff E, Olgin JE, Marcus GM, Pletcher MJ. Volunteer Participation in the Health eHeart Study: A Comparison with the US Population. Sci Rep. 2017 May 16; 7(1):1956.
  8. Maddox TM, Albert NM, Borden WB, Curtis LH, Ferguson TB, Kao DP, Marcus GM, Peterson ED, Redberg R, Rumsfeld JS, Shah ND, Tcheng JE. The Learning Healthcare System and Cardiovascular Care: A Scientific Statement From the American Heart Association. Circulation. 2017 Apr 04; 135(14):e826-e857.
  9. Nguyen KT, Olgin JE, Pletcher MJ, Ng M, Kaye L, Moturu S, Gladstone RA, Malladi C, Fann AH, Maguire C, Bettencourt L, Christensen MA, Marcus GM. Smartphone-Based Geofencing to Ascertain Hospitalizations. Circ Cardiovasc Qual Outcomes. 2017 Mar; 10(3).
  10. Kipp RT, Abu Sham'a R, Hiroyuki I, Han FT, Refaat M, Hsu JC, Field ME, Kopp DE, Marcus GM, Scheinman MM, Hoffmayer KS. Concealed Accessory Pathways with a Single Ventricular and Two Discrete Atrial Insertion Sites. Pacing Clin Electrophysiol. 2017 Mar; 40(3):255-263.
  11. Roberts JD, Soliman EZ, Alonso A, Vittinghoff E, Chen LY, Loehr L, Marcus GM. Electrocardiographic intervals associated with incident atrial fibrillation: Dissecting the QT interval. Heart Rhythm. 2017 May; 14(5):654-660.
  12. Whitman IR, Gladstone RA, Badhwar N, Hsia HH, Lee BK, Josephson SA, Meisel KM, Dillon WP, Hess CP, Gerstenfeld EP, Marcus GM. Brain Emboli After Left Ventricular Endocardial Ablation. Circulation. 2017 Feb 28; 135(9):867-877.
  13. Whitman IR, Agarwal V, Nah G, Dukes JW, Vittinghoff E, Dewland TA, Marcus GM. Alcohol Abuse and Cardiac Disease. J Am Coll Cardiol. 2017 Jan 03; 69(1):13-24.
  14. Hsu JC, Maddox TM, Marcus GM. Reply: Anticoagulation Treatment for Stroke Prevention in Atrial Fibrillation Is Increasing, But Further Improvements Needed. J Am Coll Cardiol. 2016 Dec 06; 68(22):2493.
  15. Block VJ, Lizée A, Crabtree-Hartman E, Bevan CJ, Graves JS, Bove R, Green AJ, Nourbakhsh B, Tremblay M, Gourraud PA, Ng MY, Pletcher MJ, Olgin JE, Marcus GM, Allen DD, Cree BA, Gelfand JM. Continuous daily assessment of multiple sclerosis disability using remote step count monitoring. J Neurol. 2017 Feb; 264(2):316-326.
  16. Nguyen KT, Gladstone RA, Dukes JW, Nazer B, Vittinghoff E, Badhwar N, Vedantham V, Gerstenfeld EP, Lee BK, Lee RJ, Tseng ZH, Olgin JE, Scheinman MM, Marcus GM. The QT Interval as a Noninvasive Marker of Atrial Refractoriness. Pacing Clin Electrophysiol. 2016 Dec; 39(12):1366-1372.
  17. Christensen MA, Bettencourt L, Kaye L, Moturu ST, Nguyen KT, Olgin JE, Pletcher MJ, Marcus GM. Direct Measurements of Smartphone Screen-Time: Relationships with Demographics and Sleep. PLoS One. 2016; 11(11):e0165331.
  18. Roberts JD, Marcus GM. Ablatogenomics: can genotype guide catheter ablation for cardiac arrhythmias? Pharmacogenomics. 2016 Oct 28.
  19. Hsu JC, Maddox TM, Marcus GM. Overtreatment of Low-Risk Patients With Atrial Fibrillation-The Quality Coin Has 2 Sides-Reply. JAMA Cardiol. 2016 Oct 01; 1(7):849.
  20. McManus DD, Yin X, Gladstone R, Vittinghoff E, Vasan RS, Larson MG, Benjamin EJ, Marcus GM. Alcohol Consumption, Left Atrial Diameter, and Atrial Fibrillation. J Am Heart Assoc. 2016 Sep 14; 5(9).

Publications are derived from MEDLINE/PubMed and provided by UCSF Profiles, a service of the Clinical & Translational Science Institute (CTSI) at UCSF. Researchers can make corrections and additions to their publications by logging on to UCSF Profiles.