Ravi Kalhan, MD
Enriched profileLouis A. Simpson Professor of Pulmonary Medicine; Professor of Medicine (Pulmonary and Critical Care) and Preventive Medicine (Epidemiology); Associate Dean for Faculty Affairs; Director, Asthma and COPD Program · Northwestern University Feinberg School of Medicine
Ravi Kalhan is Louis A. Simpson Professor of Pulmonary Medicine; Professor of Medicine (Pulmonary and Critical Care) and Preventive Medicine (Epidemiology); Associate Dean for Faculty Affairs; Director, Asthma and COPD Program at Northwestern University Feinberg School of Medicine. OpenAlex indexes 338 publications with 8,192 citations (h-index 49); ClinicalTrials.gov lists 5 registered studies with this person as an investigator.
Data verified 7 Sept 2026
Overview
Updated 14 Oct 2026
Ravi Kalhan, MD, is Louis A. Simpson Professor of Pulmonary Medicine at Northwestern University Feinberg School of Medicine / Northwestern Memorial Hospital, Chicago, IL. The public record shows 338 publications with 8,192 citations (h-index 49), centered on Chronic Obstructive Pulmonary Disease (COPD) Research, Respiratory Support and Mechanisms, Asthma and respiratory diseases. It also documents an investigator role on 5 registered clinical trials, industry payments reported by 11 companies, 3 NIH-funded awards (2006–2026).
- Most recent indexed publication: 2026 · Annals of the American Thoracic Society
- Top research focus: Chronic Obstructive Pulmonary Disease (COPD) Research
- 5 registered trials on ClinicalTrials.gov
- Open Payments reporting from 11 companies
Generated from the cited public record · current as of 14 Oct 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; 36 in PubMed.
Total citations across indexed works.
Hirsch index (OpenAlex). i10-index 103.
Clinical & industry
trials, payments and federal fundingPublic positions
sourced statements on record- Chair
Illinois COPD Coalition
provisionalFound in a cited public source but not yet independently corroborated. Published as a labeled candidate and queued for verification.How we verify →en.wikipedia.org ↗ - Board member and Executive Committee member
Respiratory Health Association
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 →resphealth.org ↗
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 14 Oct 2026
Listed as an investigator on 5 registered studies on ClinicalTrials.gov. The most recent:
- Clinical Trial of Omalizumab for Allergen Sensitized and Exposed Individuals With COPD
Sponsor: Johns Hopkins University
- American Lung Association (ALA) Lung Health Cohort
Sponsor: Johns Hopkins University
- Lung Function Decline and Disease Risk From Young Adulthood to Middle Age
Sponsor: Northwestern University
Industry payments
Updated 14 Oct 2026
11 companies reported payments to CMS in program years 2021–2025. These are public disclosures, not judgments. The latest:
- GlaxoSmithKline, LLC.Program year202548 payments$47,113openpaymentsdata.cms.gov ↗
- AstraZeneca Pharmaceuticals LPProgram year202525 payments$17,882openpaymentsdata.cms.gov ↗
- Verona Pharma, Inc.Program year20254 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
88%Corticosteroid53.3%Trelegy Ellipta49%Breo Ellipta11%Breztri Aerosphere9%Symbicort9%Dulera8%Budesonide-Formoterol Fumarate6%Fluticasone Propionate6%Arnuity Ellipta1%Part D<11 patientsbeta2-Adrenergic Agonist19%Albuterol Sulfate Hfa69%Ventolin Hfa24%Airsupra7%Part D<11 patients+ 7 more classes in this area
Metabolism & gastrointestinal
5.4%Corticosteroid5.4%Prednisone100%Part D≥58 patientsAnti-infectives
3.5%Macrolide Antimicrobial3.5%Azithromycin100%Part D≥33 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
Updated 14 Oct 2026
3 NIH research awards on record, funded 2006–2026 per NIH RePORTER. The latest:
- Transitions from Impaired Respiratory Health to Lung Disease
Northwestern University
FY2026$2,223,256R01HL122477 - Transitions from Impaired Respiratory Health to Lung Disease
Northwestern University
FY2025$2,381,031R01HL122477 - The American Lung Association (ALA) Lung Health Cohort
Northwestern University at Chicago
FY2024$4,111,293U01HL146408
Publications
Updated 14 Oct 2026
Their five most recent publications, matched to their ORCID record and linked to PubMed.
- Disease modification and progression in pre-chronic obstructive pulmonary disease: an official American Thoracic Society workshop report.
Annals of the American Thoracic Society
Article2026 - The Quest for Safe and Effective Bronchoscopic Lung Volume Reduction-A Matter of Correct Scaffolding?
American journal of respiratory and critical care medicine
Comment2025 - Proteomic Risk Score of Increased Respiratory Susceptibility: A Multicohort Study.
American journal of respiratory and critical care medicine
Article2025
Most-cited works
by citation count (OpenAlex)- 01Circuits between infected macrophages and T cells in SARS-CoV-2 pneumoniaArticle778 citations2021
- 02Towards the elimination of chronic obstructive pulmonary disease: a Lancet CommissionArticle661 citations2022
- 03
- 04Association Between Preserved Ratio Impaired Spirometry and Clinical Outcomes in US AdultsArticle285 citations2021
- 05
Network
Updated 14 Oct 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 14 Oct 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/cv/rkalhan
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/ravi-kalhan-21119b76
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 ↗ - Other
medicine.northwestern.edu/sites/asthma-copd
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 →medicine.northwestern.edu ↗ - ResearchGate
researchgate.net/profile/Ravi-Kalhan
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 ↗ - X / Twitter
x.com/rkalhan
Mentions by others
where others cite or feature them- LinkedIn
linkedin.com/posts/northwestern-university-feinberg-school-of-medicine_please-join-us-in-congratulating-ravi-kalhan-activity-7224494620922068993-EeIt
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 ↗ - X / Twitter
ATS Clinical Problems Assembly incoming chair announcement (X/Twitter, @ATSCPAssembly, ATS2024)
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 14 Oct 2026
Credentials, appointments and honors, newest first, each linked to the public source it came from.
Education
degrees and training on record- MS
Clinical Investigation, Northwestern University
provisionalFound in a cited public source but not yet independently corroborated. Published as a labeled candidate and queued for verification.How we verify →en.wikipedia.org ↗ - BA
History, Brown University
provisionalFound in a cited public source but not yet independently corroborated. Published as a labeled candidate and queued for verification.How we verify →en.wikipedia.org ↗ - Board Certified
American Board of Internal Medicine - Pulmonary Disease
Editorial & leadership roles
journal and society appointments- Director
Asthma and COPD Program, Northwestern Medicine / Feinberg School of Medicine
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 →medicine.northwestern.edu ↗ - Associate Dean for Faculty Affairs
Feinberg School of Medicine
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 →feinberg.northwestern.edu ↗ - Medical Director
Pulmonary Rehabilitation Program, Shirley Ryan AbilityLab
provisionalFound in a cited public source but not yet independently corroborated. Published as a labeled candidate and queued for verification.How we verify →en.wikipedia.org ↗ - Director
Alpha-1-Antitrypsin Deficiency Clinical Resource Center, Northwestern
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 →resphealth.org ↗ - Medical Director
Lung Volume Reduction Surgery (LVRS) Program, Northwestern
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 →resphealth.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 →resphealth.org ↗
Secondary affiliations
appointments beyond the home institution- Institute for Public Health and Medicine (IPHAM)
Northwestern University Feinberg School of Medicine
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 →feinberg.northwestern.edu ↗ - 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 →feinberg.northwestern.edu ↗
- 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 →feinberg.northwestern.edu ↗
- Potocsnak Longevity Institute
Northwestern
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 →feinberg.northwestern.edu ↗ - Applied Chest Imaging Laboratory
Brigham and Women's Hospital / Harvard (collaborating investigator)
provisionalFound in a cited public source but not yet independently corroborated. Published as a labeled candidate and queued for verification.How we verify →acil.bwh.harvard.edu ↗
Media & interviews
press, podcasts and appearances- 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 →news.northwestern.edu ↗
- 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 →lung.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 →hcplive.com ↗
- ReachMD "Deep Breaths: Updates from CHEST"
Escalating COPD Care: From Flares to Long-Term Control, with Dr. Meilan Han
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 →reachmd.com ↗ - Listed as Faculty Expert for journalists
Northwestern University News
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 →news.northwestern.edu ↗
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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