Katherine Twombley is a Nephrology physician. OpenAlex indexes 118 publications with 2,131 citations (h-index 24); ClinicalTrials.gov lists 1 registered study matched to this name.
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
807 Childrens Way
Jacksonville, FL 322078426
Telephone
904-697-3600Provider last certified this registry record 12 Nov 2025.
Clinical trials
- Safety and Efficacy of ProQuad® in Children 6-24 Month Being Evaluated for Solid Organ Transplant
Sponsor: Medical University of South Carolina
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
6 companies reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- Travere Therapeutics, Inc.Program year20258 payments
- ARGENX US, INC.Program year20251 payment
- Alexion Pharmaceuticals, Inc.Program year20251 payment
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.
Metabolism & gastrointestinal
36.9%H2 blocker12%Famotidine100%Part D<11 patientsCorticosteroid10.7%Prednisone100%Part D<11 patients+ 2 more classes in this area
Cardiovascular
23.6%Calcium channel blocker16.3%Amlodipine Besylate71%Katerzia29%Part D<11 patientsACE inhibitor7.3%Lisinopril100%Part D<11 patientsAnti-infectives
15.9%Azole Antifungal9.9%Fluconazole100%Part D<11 patientsShort-acting sulfonamides6%Sulfamethoxazole-Trimethoprim100%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.
- Microvascular Inflammation of Kidney Allografts and Clinical Outcomes
New England Journal of Medicine
2024 - Rapid Progression of Focal Segmental Glomerulosclerosis in Patients with High-Risk APOL1 Genotypes
Clinical Journal of the American Society of Nephrology
2023
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Mario Negri Institute for Pharmacological Research
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University of Calgary
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Dalarna University
Juan Jesús Carrero
Danderyds sjukhus
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.”