NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Loudoun Medical Group, PC

Obesity Medicine (Family Medicine) Physician in Gainesville, VA · enumerated 2022 · authorized official Mary Beth Tamasy, Ceo.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1457061830

Verified

See something wrong? Report a correction

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 7564 Gardner Park Drive, Gainesville, VA, 20155
Phone (571) 561-3400
Fax (571) 248-0994
Enumeration date Nov 28, 2022
Last updated in NPPES Jan 8, 2026

Taxonomy & classification

207QB0002X Obesity Medicine (Family Medicine) 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

Where is Loudoun Medical Group, PC located?
The practice location on file with NPPES is in Gainesville, VA.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2026-01-08. Verify at npiregistry.cms.hhs.gov.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-08.