Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Garo Ghazarian, MD, RRT-ACCS

Pulmonary Disease Physician in Chicago, IL · enumerated 2024 · practices at Midwestern Pulmonary Diagnostics, P.L.L.C..

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1821859448

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Registry record

Entity type Individual (Type 1)

Name Dr. Garo Ghazarian

Credential MD, RRT-ACCS

Sex Male

Practice address 5145 N Clark St # 1051, Chicago, IL, 60640

Phone (781) 698-8939

Enumeration date Jan 22, 2024

Last updated in NPPES May 28, 2025

Taxonomy & licenses

2279C0205X Critical Care Registered Respiratory Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 194.011230 (IL) Secondary

2279P1004X Pulmonary Diagnostics Registered Respiratory Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 194.011230 (IL) Secondary

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 194.011230 (IL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How do I verify Garo Ghazarian's NPI record?

Cross-check NPI 1821859448 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1821859448 active?

Yes, as of the latest NPPES snapshot, NPI 1821859448 is active (record last updated 2025-05-28).

Other providers at this practice address

Browse all →

Midwestern Pulmonary Diagnostics, P.L.L.C. Pulmonary Diagnostics Registered Respiratory Therapist · Chicago, IL NPI 1356102982 Elaf Manassra Registered Respiratory Therapist · Chicago, IL NPI 1144081548

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-05-28.