Roy John is a Cardiology physician affiliated with Stanford University. OpenAlex indexes 253 publications with 8,383 citations (h-index 46). By OpenAlex citation count, this profile ranks in the top 10% of Clinical Cardiac Electrophysiology profiles in the findmyKOL directory.
Overview
Scholarship
indexed output and impact (OpenAlex)Distinct works indexed by OpenAlex, matched via ORCID.
Total citations across indexed works.
Hirsch index, productivity × impact (OpenAlex).
Clinical & industry
trials, payments and federal fundingContact
The practice address and phone this provider lists in the federal NPPES (CMS) registry.
Practice address
300 Pasteur Dr
Stanford, CA 943052200
Telephone
650-723-4000Provider last certified this registry record 22 Apr 2024.
Industry payments
9 companies reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- Biosense Webster, Inc.Program year202515 payments
- Abbott LaboratoriesProgram year202526 payments
- Boston Scientific CorporationProgram year20253 payments
Payment records matched to this physician's NPI in CMS Open Payments, program years 2021 onward.
Medicare prescribing footprint (2024)
The drugs this prescriber writes for Medicare patients, grouped by drug class and therapeutic area. Every percentage is a share of their total prescribing, so you can see what they prescribe most. These are proportions, not patient counts or dollar amounts. No condition is inferred: the claims record what was prescribed, never why.
Cardiovascular
59.4%Beta blocker33%Metoprolol Succinate63%Metoprolol Tartrate31%Carvedilol6%Part D<11 patientsAntiarrhythmic17.1%Flecainide Acetate57%Amiodarone Hcl43%Part D≥24 patients+ 3 more classes in this area
Blood & clotting
40.6%Factor Xa inhibitor40.6%Eliquis79%Xarelto21%Part D<11 patients
Drug classes come from the WHO ATC and U.S. National Library of Medicine (RxClass) classifications; prescribing counts come from the CMS Medicare Part D Prescribers file. Each drug is counted once, under its primary class. Medicare fee-for-service only, so no Medicare Advantage, commercial, or pediatric prescribing is included. CMS publishes this data about 17 months after the fact.
Publications
Matched to this physician's OpenAlex author record; most-cited works shown first.
- Concomitant leadless pacemaker implantation and lead extraction during an active infection
Journal of Cardiovascular Electrophysiology
2020 - Infusion Needle Radiofrequency Ablation for Treatment of Refractory Ventricular Arrhythmias
Journal of the American College of Cardiology
2019 - Long-Term Outcomes After Ablation for Paroxysmal Atrial Fibrillation Using the Second-Generation Cryoballoon
JACC. Clinical electrophysiology
2018 - Temporal trends in safety and complication rates of catheter ablation for atrial fibrillation
Journal of Cardiovascular Electrophysiology
2018
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A basic profile from our physician directory: identity and practice contact from the federal NPPES registry, research from OpenAlex, trials from ClinicalTrials.gov, payments from CMS Open Payments, shown itemized where we have matched records, as a count where we only have a total. This person hasn't been through our full identity-adjudication pipeline yet, so funding, congress activity and public presence aren't shown. Absence of a section means “not yet looked,” never “none found.”