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Loudoun Medical Group, PC

Q: What type of organization is Loudoun Medical Group, PC?

Loudoun Medical Group, PC is registered in NPPES as a Surgery Physician (its primary provider taxonomy).

Surgery 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

1285392829

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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, Suite 215, Dulles, VA, 20166

Phone (703) 858-3200

Fax (703) 858-3203

Enumeration date Dec 1, 2021

Last updated in NPPES Nov 10, 2023

Taxonomy & classification

208600000X Surgery 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What type of organization is Loudoun Medical Group, PC?

Loudoun Medical Group, PC is registered in NPPES as a Surgery Physician (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-10.