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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. GREGORY JOHN ARGYROS MD
NPI 1437129137
Internal Medicine - Pulmonary Disease in Olney, MD

Active since January 25, 2006
16809 ETHELWOOD TER, OLNEY, MD 20832(202) 782-6206(202) 782-6507 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

About Dr. Gregory John Argyros Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GREGORY JOHN ARGYROS MD (NPI 1437129137) is an individual pulmonary disease provider in Olney, Maryland, licensed in Pennsylvania (MD043212E) and active in the NPI registry since January 2006.

NPPES Registry Identity

NPI1437129137
Entity TypeIndividualMale
Primary Taxonomy207RP1001X
Provider Legal NameDR. GREGORY JOHN ARGYROSCredential: MD
Location Address16809 ETHELWOOD TEROlney, MD 20832-2913
Mailing Address16809 Ethelwood TerOlney, MD 20832-2913 · (202) 782-6206 · Fax (202) 782-6507
Phone(202) 782-6206
Fax(202) 782-6507
Sole ProprietorNo
Enumeration DateJanuary 25, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1437129137 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RP1001X
License✔ Licensed in PA · MD043212E
Definition
An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.
16809 ETHELWOOD TER, Olney, MD 20832
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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gregory Argyros's NPI number?

The NPI number for Gregory Argyros is 1437129137. It was assigned to this individual provider in the NPPES registry on January 25, 2006.

Where is Gregory Argyros located?

Gregory Argyros practices at 16809 Ethelwood Ter, Olney, MD 20832. The listed phone number is (202) 782-6206.

What is Gregory Argyros's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

When was this NPI record last updated?

The NPPES record for Gregory Argyros was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 51 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.