John Joerns is a Respiratory physician affiliated with Mayo Clinic. OpenAlex indexes 47 publications with 254 citations (h-index 8); 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 fundingClinical trials
- Cryoprobe Biopsy and Chronic Rejection in Lung Transplant Recipients
Sponsor: Mayo Clinic
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.
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.
Cardiovascular
37.3%Beta blocker13.9%Metoprolol Tartrate34%Carvedilol32%Metoprolol Succinate19%Propranolol Hcl15%Part D<11 patientsStatin9.8%Rosuvastatin Calcium63%Pravastatin Sodium37%Part D<11 patients+ 3 more classes in this area
Anti-infectives
20.9%Macrolide Antimicrobial11.9%Azithromycin100%Part D≥25 patientsCytomegalovirus Nucleoside Analog DNA Polymerase Inhibitor4.7%Valganciclovir Hcl100%Part D<11 patients+ 1 more class in this area
Metabolism & gastrointestinal
20.8%Corticosteroid13.1%Prednisone100%Part D≥30 patientsProton pump inhibitor7.7%Pantoprazole Sodium100%Part D≥21 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.
Similar KOLs
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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.”