Michael Givertz is a Cardiology physician affiliated with Mass General Brigham. OpenAlex indexes 450 publications with 35,107 citations (h-index 69); ClinicalTrials.gov lists 1 registered study matched to this name. By OpenAlex citation count, this profile ranks in the top 5% of Cardiovascular Disease 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
111 Cypress St
Brookline, MA 024456002
Telephone
857-307-0896Registry record last updated 14 Jun 2012.
Clinical trials
- Myocardial Perfusion Echocardiography to Detect Human Heart Transplant Rejection
Sponsor: Brigham and Women's Hospital
Registered studies on ClinicalTrials.gov where the overall official or a site investigator name-matches this physician, confirmed against known institution/geography. Latest few shown; the full list is part of the full profile.
Industry payments
15 companies reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- Merck Sharp & Dohme LLCProgram year202510 payments$13,788openpaymentsdata.cms.gov ↗
- Edwards Lifesciences CorporationProgram year20253 payments
- Bayer Healthcare Pharmaceuticals Inc.Program year202514 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
74.3%Beta blocker19.6%Metoprolol Succinate50%Carvedilol36%Bisoprolol Fumarate9%Sotalol5%Part D<11 patientsAngiotensin receptor-neprilysin inhibitor (ARNI)11.9%Entresto100%Part D≥39 patients+ 11 more classes in this area
Metabolism & gastrointestinal
17.2%SGLT2 inhibitor14.9%Jardiance52%Farxiga48%Part D≥26 patientsPotassium supplement2.3%Potassium Chloride100%Part D<11 patientsBlood & clotting
7.5%Factor Xa inhibitor6.6%Eliquis71%Xarelto29%Part D<11 patientsVitamin K antagonist1%Warfarin Sodium100%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.
NIH funding
3 NIH research awards on record, funded 1999–2026 per NIH RePORTER. The latest:
- Mass General Brigham HeartShare Clinical Center
Massachusetts General Hospital
FY2026$425,681U01HL160278 - Mass General Brigham HeartShare Clinical Center
Massachusetts General Hospital
FY2025$283,788U01HL160278 - Mass General Brigham HeartShare Clinical Center
Massachusetts General Hospital
FY2024$278,113U01HL160278
Awards in the NIH RePORTER records where a principal investigator name matches this physician at an organization in their practice state. Latest award years shown; each row links to the project record on RePORTER.
Publications
Matched to this physician's OpenAlex author record; most-cited works shown first.
- Transplantation Outcomes with Donor Hearts after Circulatory Death
New England Journal of Medicine
2023 - The International Society for Heart and Lung Transplantation/Heart Failure Society of America Guideline on Acute Mechanical Circulatory Support
The Journal of Heart and Lung Transplantation
2023 - Trends and Outcomes of Left Ventricular Assist Device Therapy
Journal of the American College of Cardiology
2022
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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.”