LOUDOUN MEDICAL GROUP, PC
NPI 1962369959
Family Medicine - Obesity Medicine in Fairfax, VA

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

The NPI number for Loudoun Medical Group, PC is 1962369959. It was assigned to this organization in the NPPES registry on January 9, 2026. The provider is doing business as Physicians Premiere Weight and Wellness Center.

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

The primary specialty registered for this NPI is Family Medicine, specializing in Obesity Medicine, with taxonomy code 207QB0002X.

Active since January 09, 2026

3700 JOSEPH SIEWICK DRIVE, SUITE 106, FAIRFAX, VA 22033(571) 724-4400 Get Directions Write a Review

NPPES record last updated: January 28, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 28, 2026, Jan 15, 2026, Jan 9, 2026 (3 updates tracked since 2026).

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About Loudoun Medical Group, Pc NPPES

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

LOUDOUN MEDICAL GROUP, PC (NPI 1962369959), doing business as Physicians Premiere Weight And Wellness Center, is a healthcare organization registered as an obesity medicine in Fairfax, Virginia and active in the NPI registry since January 2026. The organization lists Mary Beth Tamasy, Ceo, as its authorized official.

NPPES Registry Identity

NPI1962369959

Entity TypeOrganization

Primary Taxonomy207QB0002X

Legal Business NameLOUDOUN MEDICAL GROUP, PC

Location Address3700 JOSEPH SIEWICK DRIVE, SUITE 106Fairfax, VA 22033-1737

Mailing Address224d Cornwall St Nw Ste 403Leesburg, VA 20176-2704 · (703) 737-6010

Phone(571) 724-4400

Organization SubpartYes

Authorized OfficialMary Beth TamasyCeo · (703) 737-6010

Enumeration DateJanuary 9, 2026

Last NPPES UpdateJanuary 28, 20263 updates tracked since enumeration

NPPES CertifiedJanuary 28, 2026

✔ NPI 1962369959 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyFamily Medicine · Obesity MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207QB0002X

Definition

A family medicine physician who specializes in the treatment of obesity demonstrates competency in and a thorough understanding of the treatment of obesity and the genetic, biologic, environmental, social, and behavioral factors that contribute to obesity. The obesity medicine physician employs therapeutic interventions including diet, physical activity, behavioral change, and pharmacotherapy. The obesity medicine physician utilizes a comprehensive approach, and may include additional resources such as dietitians, exercise physiologists, mental health professionals and bariatric surgeons as indicated to achieve optimal results. Additionally, the obesity medicine physician maintains competency in providing pre- peri- and post-surgical care of bariatric surgery patients, promotes the prevention of obesity, and advocates for those who suffer from obesity.

Also ListedFamily MedicineTaxonomy 207Q00000X

3700 JOSEPH SIEWICK DRIVE, SUITE 106, Fairfax, VA 22033

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Other Names 1

Doing Business AsPhysicians Premiere Weight And Wellness Center

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LOUDOUN MEDICAL GROUP, PC

Family Medicine

3700 JOSEPH SIEWICK DRIVE, SUITE 106
FAIRFAX, VA 22033

Fairfax County (703) 783-5673

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 1962369959. It was assigned to this organization in the NPPES registry on January 9, 2026. The provider is doing business as Physicians Premiere Weight and Wellness Center.

Where is Loudoun Medical Group, PC located?

Loudoun Medical Group, PC is located at 3700 Joseph Siewick Drive, Suite 106, Fairfax, VA 22033. The listed phone number is (571) 724-4400.

What is Loudoun Medical Group, PC's specialty?

The primary specialty registered for this NPI is Family Medicine, specializing in Obesity Medicine, with taxonomy code 207QB0002X.

When was this NPI record last updated?

The NPPES record for Loudoun Medical Group, PC was last updated on January 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months 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.