Lloyd Klein is a Cardiology physician affiliated with University of California, San Francisco. OpenAlex indexes 357 publications with 12,622 citations (h-index 57).
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 fundingIndustry payments
8 companies reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
8 companies with payments on record in CMS Open Payments (2021 onward), matched to this physician's NPI. The itemized breakdown by company, amount and year is part of the full profile. Why? →
Medicare prescribing footprint (2021)
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
100%Loop diuretic53.8%Furosemide100%Part D<11 patientsACE inhibitor46.2%Enalapril Maleate100%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.
- Occupational health hazards of interventional cardiologists in the current decade: Results of the 2014 SCAI membership survey
Catheterization and Cardiovascular Interventions
2015 - Consideration of a New Definition of Clinically Relevant Myocardial Infarction After Coronary Revascularization
Journal of the American College of Cardiology
2013 - Expert consensus statement on the use of fractional flow reserve, intravascular ultrasound, and optical coherence tomography
Catheterization and Cardiovascular Interventions
2013
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Mitchel Berger, MD
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Elyse Foster, MD
University of California, San Francisco
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.”