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MOSAIC INTERNAL MEDICINE
NPI 1053077826
Internal Medicine in Fairfax, VA

Active since November 16, 2021CLIA 49D2255591 · Waiver
8316 ARLINGTON BOULEVARD, SUITE 615, FAIRFAX, VA 22031(703) 560-8877(703) 560-8869 Get Directions Write a Review

NPPES record last updated: September 26, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 26, 2022, Nov 16, 2021 (2 updates tracked since 2021).

About Mosaic Internal Medicine NPPES

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

MOSAIC INTERNAL MEDICINE (NPI 1053077826) is a healthcare organization registered as an internal medicine in Fairfax, Virginia and active in the NPI registry since November 2021. The organization holds a CLIA Waiver certificate valid through March 15, 2028 and lists Mary Beth Tamasy, Ceo, as its authorized official.

NPPES Registry Identity

NPI1053077826
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameLOUDOUN MEDICAL GROUP, PC
Location Address8316 ARLINGTON BOULEVARD, SUITE 615Fairfax, VA 22031
Mailing Address224-d Cornwall Street, Nw, Suite 403Leesburg, VA 20176-2704 · (703) 737-6010 · Fax (703) 443-8643
Phone(703) 560-8877
Fax(703) 560-8869
Organization SubpartYes
Authorized OfficialMary Beth TamasyCeo · (703) 737-6010
Enumeration DateNovember 16, 2021
Last NPPES UpdateSeptember 26, 20222 updates tracked since enumeration
NPPES CertifiedSeptember 26, 2022
✔ NPI 1053077826 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
8316 ARLINGTON BOULEVARD, SUITE 615, Fairfax, VA 22031
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Other Names 1

Doing Business AsMosaic Internal Medicine

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

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 49D2255591

Loudoun Medical Group PC Dba Mosaic Internal Medicine · Fairfax, VA
Active · expires Mar 15, 2028
CLIA Number49D2255591
Laboratory TypePhysician Office
Certificate Effective DateMarch 16, 2026
Certificate Expiration DateMarch 15, 2028
Laboratory DirectorShreelakshmi Ramaswamy
Laboratory Phone(571) 380-5237
Laboratory LocationLoudoun Medical Group PC Dba Mosaic Internal Medicine8316 Arlington Blvd Suite 615, Fairfax, VA 22031
CLIA data matches this NPI record on: Address Name
This certificate is issued to a laboratory to perform only waived tests.

Other Providers at the Same Location NPPES

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

DR. SHREELAKSHMI RAMASWAMY M.D.
Internal Medicine
8316 ARLINGTON BOULEVARD, SUITE 615
FAIRFAX, VA 22031
Fairfax County (703) 560-8877

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 1053077826. It was assigned to this organization in the NPPES registry on November 16, 2021. The provider is doing business as Mosaic Internal Medicine.

Where is Loudoun Medical Group, PC located?

Loudoun Medical Group, PC is located at 8316 Arlington Boulevard, Suite 615, Fairfax, VA 22031. The listed phone number is (703) 560-8877.

What is Loudoun Medical Group, PC's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

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

Yes. A Certificate of Waiver (number 49D2255591) is associated with this NPI, valid through March 15, 2028. 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 26, 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.