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Loudoun Medical Group, PC

Pulmonary Disease Physician in Dulles, VA · enumerated 2021 · authorized official Mary Beth Tamasy, Ceo.

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

National Provider Identifier

1649948746

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Registry record

Entity type Organization (Type 2)
Legal business name Loudoun Medical Group, PC
Other name <Unavail>
Parent organization Loudoun Medical Group, PC
Practice address 24430 Stone Springs Blvd Unit 100, Dulles, VA, 20166
Phone (703) 723-7504
Fax (703) 723-7550
Enumeration date Sep 2, 2021
Last updated in NPPES Aug 18, 2023

Taxonomy & classification

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians Secondary
207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Mary Beth Tamasy
Title Ceo
Phone (703) 737-6010

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

Where is Loudoun Medical Group, PC located?
The practice location on file with NPPES is in Dulles, VA.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2023-08-18. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-08-18.