Karen Armbrust is an Ophthalmology physician affiliated with University of Minnesota. OpenAlex indexes 62 publications with 894 citations (h-index 11).
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
1 Veterans Dr # 2e
Minneapolis, MN 554172309
Telephone
612-725-2000Registry record last updated 16 Oct 2019.
Industry payments
1 company reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- Bausch & Lomb Americas Inc.Program year20251 payment
- Bausch & Lomb Americas Inc.Program year20231 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.
Sensory organs
74.6%Corticosteroid38%Prednisolone Acetate100%Part D<11 patientsCorticosteroids, plain21.1%Difluprednate100%Part D<11 patients+ 1 more class in this area
Metabolism & gastrointestinal
25.4%Corticosteroid25.4%Prednisone100%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.
- Omega-3 Fatty Acid Supplementation and Incident Age-Related Macular Degeneration in a United States Veteran Population: A Retrospective Cohort Study
Journal of Clinical & Translational Ophthalmology
2026 - Toric intraocular lens versus arcuate keratotomy: femtosecond laser enters the debate
Annals of Eye Science
2026 - Incidence and Prevalence of Uveitis and Associated Ocular Complications in the United States TriNetX Database
American Journal of Ophthalmology
2025
Similar KOLs
Other experts from the same institution or the same specialty.
Bruce Blazar, MD
University of Minnesota
Jay Cohn, MD
University of Minnesota
Julia Steinberger, MD
University of Minnesota
Charles Herzog, MD
University of Minnesota
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.”