Jason Friesen is a Rheumatology/Immunology physician. OpenAlex indexes 19 publications with 315 citations (h-index 7).
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
1488 Oak St
Eugene, OR 974014043
Telephone
541-683-1577Registry record last updated 29 Dec 2010.
Industry payments
19 companies reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- Novartis Pharmaceuticals CorporationProgram year20253 payments
- GENZYME CORPORATIONProgram year20251 payment
- GENZYME CORPORATIONProgram 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.
Respiratory
89.8%Corticosteroid44.3%Fluticasone Propionate19%Budesonide-Formoterol Fumarate16%Symbicort14%Dulera12%Trelegy Ellipta10%Breyna10%Breo Ellipta7%Arnuity Ellipta6%Qvar Redihaler6%Part D<11 patientsLeukotriene Receptor Antagonist23.6%Montelukast Sodium100%Part D≥26 patients+ 2 more classes in this area
Dermatology
10.2%Interleukin-4 Receptor alpha Antagonist10.2%Dupixent Pen51%Dupixent Syringe49%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.
Similar KOLs
Other experts from the same institution or the same specialty.
David J. Hunter
The University of Sydney
Aziz Sheikh
Universiti Malaysia Terengganu
Nima Hafezi‐Nejad
The University of Sydney
Gelin Xu
Second Affiliated Hospital of Nanjing Medical University
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.”