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POTOMAC FAMILY PRACTICE
NPI 1043334410
Family Medicine in Potomac Falls, VA

Active since March 19, 2007CLIA 49D0894322 · Waiver
46165 WESTLAKE DR., STE 120, POTOMAC FALLS, VA 20165(703) 444-3302(703) 444-3240 Get Directions Write a Review

NPPES record last updated: September 27, 2022. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Sep 27, 2022, Mar 13, 2022, Aug 10, 2021 (3 updates tracked since 2021).

About Potomac Family Practice NPPES

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

POTOMAC FAMILY PRACTICE (NPI 1043334410) is a healthcare organization registered as a family medicine in Potomac Falls, Virginia and active in the NPI registry since March 2007. The organization holds a CLIA Waiver certificate valid through April 25, 2027 and lists Mary Beth Tamasy, Ceo, as its authorized official.

NPPES Registry Identity

NPI1043334410
Entity TypeOrganization
Primary Taxonomy207Q00000X
Legal Business NameLOUDOUN MEDICAL GROUP, PC
Location Address46165 WESTLAKE DR., STE 120Potomac Falls, VA 20165-5872
Mailing Address224-d Cornwall Street, Nw, Suite 403Leesburg, VA 20176-2704 · (703) 737-6010 · Fax (571) 291-9786
Phone(703) 444-3302
Fax(703) 444-3240
Organization SubpartYes
Authorized OfficialMary Beth TamasyCeo · (703) 737-6010
Enumeration DateMarch 19, 2007
Last NPPES UpdateSeptember 27, 20223 updates tracked since enumeration
NPPES CertifiedSeptember 27, 2022
✔ NPI 1043334410 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

46165 WESTLAKE DR., STE 120, Potomac Falls, VA 20165
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Other Names 1

Doing Business AsPotomac Family Practice

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 49D0894322

Potomac Family Practice · Potomac Falls, VA
Active · expires Apr 25, 2027
CLIA Number49D0894322
Laboratory TypePhysician Office
Certificate Effective DateApril 26, 2025
Certificate Expiration DateApril 25, 2027
Laboratory DirectorNhu Nga Truong MD
Laboratory Phone(703) 444-3302
Laboratory LocationPotomac Family Practice46165 Westlake Drive - Suite 120, Potomac Falls, VA 20165
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Loudoun Medical Group, PC's NPI number?

The NPI number for Loudoun Medical Group, PC is 1043334410. It was assigned to this organization in the NPPES registry on March 19, 2007. The provider is doing business as Potomac Family Practice.

Where is Loudoun Medical Group, PC located?

Loudoun Medical Group, PC is located at 46165 Westlake Dr., Ste 120, Potomac Falls, VA 20165. The listed phone number is (703) 444-3302.

What is Loudoun Medical Group, PC's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Does Loudoun Medical Group, PC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 49D0894322) is associated with this NPI, valid through April 25, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Loudoun Medical Group, PC was last updated on September 27, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.