Karen Ballen is a Hematology physician affiliated with University of Virginia Health System. OpenAlex indexes 492 publications with 18,432 citations (h-index 69); ClinicalTrials.gov lists 7 registered studies 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
3300 Gallows Rd
Falls Church, VA 220423307
Telephone
571-423-5699Provider last certified this registry record 8 Aug 2023.
Clinical trials
- Palliative Care Oncology in Patients With Relapsed, Refractory, and High-Risk Leukemias or MDS
Sponsor: University of Virginia
- Lenalidomide Plus Chemotherapy for AML
Sponsor: Massachusetts General 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
3 companies reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- National Marrow Donor ProgramProgram year20254 payments
- National Marrow Donor ProgramProgram year20245 payments
- CSL BehringProgram year20241 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.
Dermatology
27.4%Herpesvirus Nucleoside Analog DNA Polymerase Inhibitor27.4%Acyclovir100%Part D≥23 patientsMetabolism & gastrointestinal
27.1%Corticosteroid10.4%Prednisone100%Part D≥11 patientsProton pump inhibitor9.1%Pantoprazole Sodium100%Part D<11 patients+ 1 more class in this area
Anti-infectives
15.5%Short-acting sulfonamides6%Sulfamethoxazole-Trimethoprim100%Part D<11 patientsMacrolide Antimicrobial5.7%Azithromycin100%Part D≥14 patients+ 1 more class in this area
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.
- Gilteritinib as Post-Transplant Maintenance for AML With Internal Tandem Duplication Mutation of <i>FLT3</i>
Journal of Clinical Oncology
2024 - Myeloablative Autologous Stem-Cell Transplantation for Severe Scleroderma
New England Journal of Medicine
2018
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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.”