Igor Barjaktarevic, MD
Enriched profileHS Associate Clinical Professor of Medicine; Medical Director, COPD Program, David Geffen School of Medicine at UCLA · University of California, Los Angeles
Igor Barjaktarevic is HS Associate Clinical Professor of Medicine; Medical Director, COPD Program, David Geffen School of Medicine at UCLA at University of California, Los Angeles. OpenAlex indexes 422 publications with 10,184 citations (h-index 37); ClinicalTrials.gov lists 11 registered studies with this person as an investigator.
Data verified 14 Aug 2026
Overview
Updated 27 Aug 2026
Igor Barjaktarevic, MD, MSC, is HS Associate Clinical Professor of Medicine at University of California, Los Angeles (David Geffen School of Medicine / UCLA Health, Ronald Reagan Medical Center). The public record shows 422 publications with 10,184 citations (h-index 37), centered on Chronic Obstructive Pulmonary Disease (COPD) Research, Respiratory Support and Mechanisms, Asthma and respiratory diseases. It also documents an investigator role on 11 registered clinical trials, industry payments reported by 14 companies.
- Most recent indexed publication: 2026 · International journal of chronic obstructive pulmonary disease
- Top research focus: Chronic Obstructive Pulmonary Disease (COPD) Research
- 11 registered trials on ClinicalTrials.gov
- Open Payments reporting from 14 companies
Generated from the cited public record · current as of 27 Aug 2026. Every fact links its source below.
Indications focus
from trials led + research topicsResearch focus
OpenAlex concept fingerprintDrugs & molecules
across trials, industry payments and publicationsWorks with
trial sponsors and companies reporting paymentsScholarship
indexed output and impact (OpenAlex)Distinct works indexed by OpenAlex, matched via ORCID; 34 in PubMed.
Total citations across indexed works.
Hirsch index (OpenAlex). i10-index 112.
Clinical & industry
trials, payments and federal fundingFederally funded research awards.
Contact
The practice address and phone this provider lists in the federal NPPES (CMS) registry.
Practice address
Telephone
Practice address and telephone from the federal NPPES registry.
Sign in to view contact details →Clinical trials
Updated 27 Aug 2026
Listed as an investigator on 11 registered studies on ClinicalTrials.gov. The most recent:
- PiMZ Longitudinal Cohort (PiMZ Logic)
Sponsor: Columbia University
- Multi-Center Clean Air Randomized Controlled Trial in COPD
Sponsor: JHSPH Center for Clinical Trials
- Deep Functional Phenotyping of the ALA Lung Health Cohort
Sponsor: Johns Hopkins University
Industry payments
Updated 27 Aug 2026
14 companies reported payments to CMS in program years 2021–2025. These are public disclosures, not judgments. The latest:
- Verona Pharma, Inc.Program year202512 payments$15,350openpaymentsdata.cms.gov ↗
- Grifols USA, LLCProgram year20258 payments$12,300openpaymentsdata.cms.gov ↗
- Genentech USA, Inc.Program year20257 payments
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
100%Corticosteroid55.9%Trelegy Ellipta48%Fluticasone Propionate32%Breztri Aerosphere19%Part D<11 patientsbeta2-Adrenergic Agonist28.8%Albuterol Sulfate Hfa100%Part D≥14 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.
NIH funding
We didn't find any NIH-funded research awards for this person in NIH RePORTER. Why? →
Publications
Updated 27 Aug 2026
Their five most recent publications, matched to their ORCID record and linked to PubMed.
- Understanding Nebulizer Utilization by Patients and Healthcare Providers: A COPD Foundation Nebulizer Consortium Survey Study.
International journal of chronic obstructive pulmonary disease
Article2026 - Epigenomic study of the lower airway reveals COPD-associated methylation patterns and potential microbiota links.
BMJ open respiratory research
Article2025 - Reply to Abushanab et al.: Longitudinal Outcomes of Pi*MZ versus Pi*MM Subjects Stratified by Former and Current Smoking Status.
Annals of the American Thoracic Society
Letter2025 - SPIROMICS HF: Rationale, Design, and Reproducibility of Measures.
Circulation. Heart failure
Article2025 - Correction: Letter to the Editor: An unspoken contributor to VILI in ARDS-asymmetry of lung injury.
Intensive care medicine
Erratum2025
Most-cited works
by citation count (OpenAlex)Network
Updated 27 Aug 2026
The people this person publishes with most, by number of co-authored papers. Names link to their own profile when we have one.
Online presence
Updated 27 Aug 2026
This person's own public accounts first, then places where others mention them. Two different things, listed separately.
Owned accounts
public accounts run by this person- Doximity
doximity.com/pub/igor-barjaktarevic-md
verifiedCorroborated by findmyKOL. We matched this record across two or more independent public sources (or a verified ORCID / NPI identifier bridge) before attributing it to this person.How we verify →doximity.com ↗ - LinkedIn
linkedin.com/in/igor-barjaktarevic-md-phd-67404566
verifiedCorroborated by findmyKOL. We matched this record across two or more independent public sources (or a verified ORCID / NPI identifier bridge) before attributing it to this person.How we verify →linkedin.com ↗ - ResearchGate
researchgate.net/profile/Igor-Barjaktarevic
verifiedCorroborated by findmyKOL. We matched this record across two or more independent public sources (or a verified ORCID / NPI identifier bridge) before attributing it to this person.How we verify →researchgate.net ↗
Mentions by others
where others cite or feature them- X / Twitter
x.com/Hananianick/status/1796371153122140193
provisionalFound in a cited public source but not yet independently corroborated. Published as a labeled candidate and queued for verification.How we verify →x.com ↗
We list an account only when the public record ties it to this person. verified means we've confirmed the match in more than one place; provisional means it looks right but we're still confirming.
Background & recognition
Updated 27 Aug 2026
Credentials, appointments and honors, newest first, each linked to the public source it came from.
Education
degrees and training on record- verifiedCorroborated by findmyKOL. We matched this record across two or more independent public sources (or a verified ORCID / NPI identifier bridge) before attributing it to this person.How we verify →uclahealth.org ↗
- verifiedCorroborated by findmyKOL. We matched this record across two or more independent public sources (or a verified ORCID / NPI identifier bridge) before attributing it to this person.How we verify →uclahealth.org ↗
- Fellowship
Pulmonary & Critical Care Medicine, New York Presbyterian Hospital/Weill Cornell Medical College
2012verifiedCorroborated by findmyKOL. We matched this record across two or more independent public sources (or a verified ORCID / NPI identifier bridge) before attributing it to this person.How we verify →uclahealth.org ↗ - verifiedCorroborated by findmyKOL. We matched this record across two or more independent public sources (or a verified ORCID / NPI identifier bridge) before attributing it to this person.How we verify →uclahealth.org ↗
- verifiedCorroborated by findmyKOL. We matched this record across two or more independent public sources (or a verified ORCID / NPI identifier bridge) before attributing it to this person.How we verify →uclahealth.org ↗
- Residency
Internal Medicine, New York University
verifiedCorroborated by findmyKOL. We matched this record across two or more independent public sources (or a verified ORCID / NPI identifier bridge) before attributing it to this person.How we verify →uclahealth.org ↗
Editorial & leadership roles
journal and society appointments- provisionalFound in a cited public source but not yet independently corroborated. Published as a labeled candidate and queued for verification.How we verify →thoracic.org ↗
- Medical Director
COPD Program, David Geffen School of Medicine at UCLA
verifiedCorroborated by findmyKOL. We matched this record across two or more independent public sources (or a verified ORCID / NPI identifier bridge) before attributing it to this person.How we verify →uclahealth.org ↗ - Director
Bedside Ultrasound, Ronald Reagan Medical Center
verifiedCorroborated by findmyKOL. We matched this record across two or more independent public sources (or a verified ORCID / NPI identifier bridge) before attributing it to this person.How we verify →uclahealth.org ↗
Awards & honors
honors on the public record- verifiedCorroborated by findmyKOL. We matched this record across two or more independent public sources (or a verified ORCID / NPI identifier bridge) before attributing it to this person.How we verify →uclahealth.org ↗
- verifiedCorroborated by findmyKOL. We matched this record across two or more independent public sources (or a verified ORCID / NPI identifier bridge) before attributing it to this person.How we verify →uclahealth.org ↗
Media & interviews
press, podcasts and appearances- provisionalFound in a cited public source but not yet independently corroborated. Published as a labeled candidate and queued for verification.How we verify →cordmagazine.com ↗
- verifiedCorroborated by findmyKOL. We matched this record across two or more independent public sources (or a verified ORCID / NPI identifier bridge) before attributing it to this person.How we verify →hcplive.com ↗
- Featured KOL interview: "Dr. Igor Barjaktarevic on Advancing Alpha-1 Care"
Accredo Specialty Pharmacy
provisionalFound in a cited public source but not yet independently corroborated. Published as a labeled candidate and queued for verification.How we verify →accredo.com ↗
Every item links to where we found it. verified means we've confirmed it in more than one place; provisional means we found it and are still confirming.
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