Chaim Vanek is an Endocrinology/Metabolic physician affiliated with Oregon Health & Science University. OpenAlex indexes 19 publications with 339 citations (h-index 5).
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).
Medicare prescribing footprint (2023)
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.
Hormonal (systemic)
55.6%l-Thyroxine30.4%Levothyroxine Sodium77%Synthroid21%Tirosint3%Part D<11 patientsRecombinant Human Growth Hormone7.1%Genotropin58%Omnitrope26%Nutropin Aq Nuspin9%Humatrope8%Part D<11 patients+ 9 more classes in this area
Genitourinary & hormones
20%Androgen10.8%Testosterone Cypionate69%Testosterone24%Androgel7%Part D<11 patientsEstrogen6.1%Estradiol100%Part D≥26 patients+ 1 more class in this area
Metabolism & gastrointestinal
10.8%Vitamin D3 Analog3.1%Calcitriol100%Part D≥15 patientsBiguanide (metformin)3%Metformin Hcl80%Metformin Hcl Er20%Part D<11 patients+ 3 more classes 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.
Similar KOLs
Other experts from the same institution or the same specialty.
Eric Orwoll, MD
Oregon Health & Science University
Tomasz Beer, MD
Oregon Health & Science University
John Nutt, MD
Oregon Health & Science University
Richard Maziarz, MD
Oregon Health & Science 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.”