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Loudoun Medical Group, PC

Sleep Medicine (Internal Medicine) Physician in North Bethesda, MD · enumerated 2016 · authorized official Mary Beth Tamasy, Ceo.

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

National Provider Identifier

1104377746

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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 6000 Executive Blvd, Suite 604, North Bethesda, MD, 20852
Phone (703) 729-3420
Fax (703) 729-3422
Enumeration date Oct 19, 2016
Last updated in NPPES Sep 16, 2022

Taxonomy & classification

207RS0012X Sleep Medicine (Internal Medicine) 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 North Bethesda, MD.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2022-09-16. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-09-16.