Gregory Piazza, MD
Basic profileAssociate Professor of Medicine, Harvard Medical School · Brigham and Women's Hospital
Gregory Piazza is Associate Professor of Medicine, Harvard Medical School at Brigham and Women's Hospital. OpenAlex indexes 441 publications with 15,892 citations (h-index 59); ClinicalTrials.gov lists 1 registered study matched to this name. By OpenAlex citation count, this profile ranks in the top 10% of Cardiovascular Disease profiles in the findmyKOL directory.
Overview
Updated 14 Oct 2026
Gregory Piazza, M.D., is Associate Professor of Medicine, Harvard Medical School at Brigham and Women's Hospital. The public record shows 489 publications with 16,466 citations (h-index 59), centered on Venous Thromboembolism Diagnosis and Management, Blood Coagulation and Thrombosis Mechanisms, Cardiovascular and Diving-Related Complications. It also documents an investigator role on 7 registered clinical trials, industry payments reported by 16 companies.
- Most recent indexed publication: 2026 · The New England journal of medicine
- Top research focus: Venous Thromboembolism Diagnosis and Management
- 7 registered trials on ClinicalTrials.gov
- Open Payments reporting from 16 companies
Generated from the cited public record · current as of 14 Oct 2026. Every fact links its source below.
Indications focus
from trials led + research topicsResearch focus
OpenAlex concept fingerprintDrugs & molecules
across trials, industry payments and publicationsWorks with
trial sponsors and companies reporting paymentsScholarship
indexed output and impact (OpenAlex)Distinct works indexed by OpenAlex, matched via ORCID.
Total citations across indexed works.
Hirsch index (OpenAlex). i10-index 180.
Clinical & industry
trials, payments and federal fundingPublic positions
sourced statements on record- Section Head
Vascular Medicine Division, Brigham and Women's Hospital
verifiedCorroborated by findmyKOL. We matched this record across two or more independent public sources (or a verified ORCID / NPI identifier bridge) before attributing it to this person.How we verify →massgeneralbrigham.org ↗ - Staff Physician
Cardiovascular Division, Brigham and Women's Hospital
verifiedCorroborated by findmyKOL. We matched this record across two or more independent public sources (or a verified ORCID / NPI identifier bridge) before attributing it to this person.How we verify →massgeneralbrigham.org ↗
Contact
The practice address and phone this provider lists in the federal NPPES (CMS) registry.
Practice address
75 Francis St
Boston, MA 02115-6110
Telephone
617-525-7053Provider last certified this registry record 31 Mar 2026 · collected 28 Jul 2026.
Clinical trials
Updated 14 Oct 2026
Listed as an investigator on 1 registered study on ClinicalTrials.gov. The most recent:
- Computerized Decision Support to Prevent Stroke in Atrial Fibrillation
Sponsor: Brigham and Women's Hospital
- Augmented Ultrasound-Facilitated, Catheter-Directed Fibrinolysis for PE
Sponsor: Brigham and Women's Hospital
Industry payments
Updated 14 Oct 2026
16 companies reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- Boston Scientific CorporationProgram year202554 payments$78,602openpaymentsdata.cms.gov ↗
- E.R. Squibb & Sons, L.L.C.Program year20257 payments$10,689openpaymentsdata.cms.gov ↗
- PFIZER INC.Program year20252 payments
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
63.9%Statin29.9%Rosuvastatin Calcium54%Atorvastatin Calcium47%Part D≥66 patientsBeta blocker14.4%Metoprolol Succinate69%Carvedilol24%Atenolol7%Part D<11 patients+ 10 more classes in this area
Blood & clotting
34.7%Factor Xa inhibitor30.5%Eliquis76%Xarelto21%Fondaparinux Sodium3%Part D<11 patientsPhosphodiesterase 3 Inhibitor1.9%Cilostazol100%Part D<11 patients+ 2 more classes in this area
Metabolism & gastrointestinal
1.3%SGLT2 inhibitor1.3%Jardiance100%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.
Congress activity
Updated 14 Oct 2026
5 congress contributions (2018–2025) across ASH per OpenAlex. The most recent:
- Pulmonary Embolism–Attributable mortality among patients with breast cancer in the United States, 1999-2021
ASH Annual Meeting
ASH2025Co-author - Effectiveness and Safety of Rivaroxaban Versus Warfarin in Patients with Pulmonary Embolism and Right Ventricular Dysfunction
ASH Annual Meeting
ASH2024Co-author - Social Determinants of Health and Pulmonary Embolism Treatment and Mortality: The Nationwide Inpatient Sample
ASH Annual Meeting
ASH2022Co-author
Published abstracts are attributed via the same ORCID-disambiguated authorship as publications, so each is DOI-verified. Podium roles (invited talks, session chairs) and oral/poster type are added as program data is confirmed.
Publications
Updated 14 Oct 2026
Their five most recent publications, matched to their ORCID record and linked to PubMed.
- Ultrasound-Facilitated, Catheter-Directed Fibrinolysis for Acute Pulmonary Embolism. Reply.
The New England journal of medicine
Letter2026 - Ultrasound-Facilitated, Catheter-Directed Fibrinolysis for Acute Pulmonary Embolism.
The New England journal of medicine
Clinical Trial2026 - Adjudicated Cardiovascular Events in Patients With COVID-19: Association With Vaccination Status and Changes over Time.
Journal of the American Heart Association
Article2025 - Trends in Bicuspid Aortic Valve-Attributable Death in the United States From 2010 to 2020.
Journal of the American Heart Association
Article2025 - Apixaban for Extended Treatment of Provoked Venous Thromboembolism.
The New England journal of medicine
Clinical Trial2025
Most-cited works
by citation count (OpenAlex)Network
Updated 14 Oct 2026
The people this person publishes with most, by number of co-authored papers. Names link to their own profile when we have one.
Online presence
Updated 14 Oct 2026
This person's own public accounts first, then places where others mention them. Two different things, listed separately.
Owned accounts
public accounts run by this person- Other
massgeneralbrigham.org/en/doctors/p/gregory-piazza-3007132
verifiedCorroborated by findmyKOL. We matched this record across two or more independent public sources (or a verified ORCID / NPI identifier bridge) before attributing it to this person.How we verify →massgeneralbrigham.org ↗
Mentions by others
where others cite or feature them- Other
cardiometabolichealth.org/faculty/gregory-piazza
verifiedCorroborated by findmyKOL. We matched this record across two or more independent public sources (or a verified ORCID / NPI identifier bridge) before attributing it to this person.How we verify →cardiometabolichealth.org ↗
We list an account only when the public record ties it to this person. verified means we've confirmed the match in more than one place; provisional means it looks right but we're still confirming.
Background & recognition
Updated 14 Oct 2026
Credentials, appointments and honors, newest first, each linked to the public source it came from.
Education
degrees and training on record- verifiedCorroborated by findmyKOL. We matched this record across two or more independent public sources (or a verified ORCID / NPI identifier bridge) before attributing it to this person.How we verify →massgeneralbrigham.org ↗
- verifiedCorroborated by findmyKOL. We matched this record across two or more independent public sources (or a verified ORCID / NPI identifier bridge) before attributing it to this person.How we verify →cardiometabolichealth.org ↗
Editorial & leadership roles
journal and society appointments- Chair of Clinician Engagement and Education
Emeritus, Vasculearn Network
verifiedCorroborated by findmyKOL. We matched this record across two or more independent public sources (or a verified ORCID / NPI identifier bridge) before attributing it to this person.How we verify →thrombosis.org ↗
Secondary affiliations
appointments beyond the home institution- Harvard Medical School
Associate Professor of Medicine
verifiedCorroborated by findmyKOL. We matched this record across two or more independent public sources (or a verified ORCID / NPI identifier bridge) before attributing it to this person.How we verify →massgeneralbrigham.org ↗ - Brigham and Women's Hospital Vascular Medicine Fellowship
Program Director
verifiedCorroborated by findmyKOL. We matched this record across two or more independent public sources (or a verified ORCID / NPI identifier bridge) before attributing it to this person.How we verify →massgeneralbrigham.org ↗
Every item links to where we found it. verified means we've confirmed it in more than one place; provisional means we found it and are still confirming.
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Other experts from the same institution or the same specialty.
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Harlan Krumholz, MD
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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.”