POTOMAC FAMILY PRACTICE
NPI 1760668123
Family Medicine in Leesburg, VA

Q: What is Loudoun Medical Group, PC's NPI number?

The NPI number for Loudoun Medical Group, PC is 1760668123. It was assigned to this organization in the NPPES registry on January 16, 2008. The provider is doing business as Potomac Family Practice.

Q: What is Loudoun Medical Group, PC's specialty?

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

Active since January 16, 2008CLIA 49D0892592 · Microscopy

224-D CORNWALL STREET, NW, SUITE 301, LEESBURG, VA 20176(703) 779-0700(703) 779-1398 Get Directions Write a Review

NPPES record last updated: September 27, 2022. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Sep 27, 2022, Mar 13, 2022 (2 updates tracked since 2022).

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About Potomac Family Practice NPPES

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

POTOMAC FAMILY PRACTICE (NPI 1760668123) is a healthcare organization registered as a family medicine in Leesburg, Virginia and active in the NPI registry since January 2008. The organization holds a CLIA Microscopy certificate valid through October 26, 2027 and lists Mary Beth Tamasy, Ceo, as its authorized official.

NPPES Registry Identity

NPI1760668123

Entity TypeOrganization

Primary Taxonomy207Q00000X

Legal Business NameLOUDOUN MEDICAL GROUP, PC

Location Address224-D CORNWALL STREET, NW, SUITE 301Leesburg, VA 20176-2700

Mailing Address224-d Cornwall St., Nw, Suite 403Leesburg, VA 20176-2704 · (703) 737-6010 · Fax (703) 443-8643

Phone(703) 779-0700

Fax(703) 779-1398

Organization SubpartYes

Authorized OfficialMary Beth TamasyCeo · (703) 737-6010

Enumeration DateJanuary 16, 2008

Last NPPES UpdateSeptember 27, 20222 updates tracked since enumeration

NPPES CertifiedSeptember 27, 2022

✔ NPI 1760668123 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.

224-D CORNWALL STREET, NW, SUITE 301, Leesburg, VA 20176

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Other Names 1

Doing Business AsPotomac Family Practice

Other Identifiers 1

OtherCG8678VA · Rr Medicare Group Pin

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 for Provider-Performed Microscopy Procedures (PPMP) 49D0892592

Potomac Family Practice · Leesburg, VA

Active · expires Oct 26, 2027

CLIA Number49D0892592

Laboratory TypePhysician Office

Certificate Effective DateOctober 27, 2025

Certificate Expiration DateOctober 26, 2027

Laboratory DirectorJoseph Y. Lee

Laboratory Phone(703) 779-0700

Laboratory LocationPotomac Family Practice224-D Cornwall Street - Suite 301, Leesburg, VA 20176

CLIA data matches this NPI record on: Name Phone

This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform 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 1760668123. It was assigned to this organization in the NPPES registry on January 16, 2008. The provider is doing business as Potomac Family Practice.

Where is Loudoun Medical Group, PC located?

Loudoun Medical Group, PC is located at 224-D Cornwall Street, NW, Suite 301, Leesburg, VA 20176. The listed phone number is (703) 779-0700.

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 for Provider-Performed Microscopy Procedures (PPMP) (number 49D0892592) is associated with this NPI, valid through October 26, 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 weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.