Karen Warburton is a Nephrology physician affiliated with University of Virginia Medical Center. OpenAlex indexes 32 publications with 275 citations (h-index 8).
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).
Contact
The practice address and phone this provider lists in the federal NPPES (CMS) registry.
Practice address
Telephone
Practice address and telephone from the federal NPPES registry.
Sign in to view contact details →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
51.6%Beta blocker18.1%Carvedilol100%Part D≥16 patientsCalcium channel blocker15.8%Amlodipine Besylate67%Nifedipine Er33%Part D<11 patients+ 2 more classes in this area
Metabolism & gastrointestinal
27.4%Corticosteroid23.9%Prednisone100%Part D≥20 patientsProton pump inhibitor3.5%Omeprazole100%Part D<11 patientsCancer & immunology
11.9%Calcineurin inhibitor11.9%Tacrolimus100%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.
- Differential Diagnosis Variation Among First-Year Nephrology Fellows for a Virtual Case of AKI
Journal of the American Society of Nephrology
2025 - A Targeted Clinical Reasoning Remediation Program for Residents and Fellows in Need
Journal of Graduate Medical Education
2024 - Characteristics of ADHD in Struggling Residents and Fellows
Journal of Graduate Medical Education
2024
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Warren Bolton, MD
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Andrew Levey, MD
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Bertram Kasiske, MD
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Garabed Eknoyan, MD
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Lawrence Hunsicker, 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.”