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Office
300 Pasteur Dr
Palo Alto, CA 94305Phone+1 650-272-0818
Education & Training
- Boston VA Healthcare System (Brockton-West Roxbury)Fellowship, Cardiovascular Disease, 1991 - 1993
- University of Kerala Medical CollegeClass of 1979
Certifications & Licensure
- NH State Medical License 1996 - Present
- CA State Medical License 2021 - 2025
- MA State Medical License 1993 - 2022
- NY State Medical License 2019 - 2022
- TN State Medical License 2017 - 2020
- FL State Medical License 1992 - 2013
- WI State Medical License 1992 - 2007
- American Board of Internal Medicine Internal Medicine
- American Board of Internal Medicine Cardiovascular Disease
- American Board of Internal Medicine Clinical Cardiac Electrophysiology
Awards, Honors, & Recognition
- Fellow (FACC) American College of Cardiology
Clinical Trials
- Early Elimination of Premature Ventricular Contractions in Heart Failure Start of enrollment: 2013 Jan 01
- Intramural Needle Ablation for Ablation of Recurrent Ventricular Tachycardia Start of enrollment: 2016 Sep 01
Publications & Presentations
PubMed
- 11 citationsSustained Monomorphic Ventricular Tachycardia in Nonischemic Heart Disease: Arrhythmia-Substrate Correlations That Inform the Approach to Ablation.Arvindh Kanagasundram, Roy M. John, William G. Stevenson
Circulation. Arrhythmia and Electrophysiology. 2019-10-30 - 26 citationsEffect of Late Gadolinium Enhancement on the Recovery of Left Ventricular Systolic Function After Pulmonary Vein Isolation.Daniel Addison, Hoshang Farhad, Ravi V. Shah, Thomas Mayrhofer, Siddique Abbasi
Journal of the American Heart Association. 2016-09-01 - 94 citationsAtrioesophageal fistula formation with cryoballoon ablation is most commonly related to the left inferior pulmonary veinRoy M. John, Sunil Kapur, Kenneth A. Ellenbogen, Jayanthi N. Koneru
Heart Rhythm. 2017-02-01
Journal Articles
- Original Research Left Ventricular Entropy Is a Novel Predictor of Arrhythmic Events in Patients with Dilated Cardiomyopathy Receiving Defibrillators for Primary Preve...Paul C Zei, Sunil Kapur, Roy M John, Usha B Tedrow, Raymond Y Kwong, William G Stevenson, Laurence M Epstein, Bruce A Koplan, ScienceDirect
Press Mentions
- The Story of Managed Ventricular PacingAugust 5th, 2021
- Indian Physicians’ Petition Puts Focus on Race Risks in the Wake of COVID-19May 5th, 2020
- Facing up to Depression After a BypassNovember 27th, 2001
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