NPIMap

Organization Active NPI

Loudoun Medical Group, PC

Doing business as Valerie Williamson, MD

  • Family Medicine Physician
  • Leesburg, VA
National Provider Identifier
1821517699
Registry record updated Aug 18, 2023
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
Legal business name
LOUDOUN MEDICAL GROUP, PC
Doing business as
Valerie Williamson, MD
Practice address
211 Gibson Street, NW Suite 215
Leesburg, VA 20176-2115
Phone
(571) 707-2079
Fax
(571) 291-9196
NPI assigned
Sep 13, 2017
Last updated
Aug 18, 2023By the provider in NPPES
Organization subpart
Yes
Parent organization
LOUDOUN MEDICAL GROUP, PCAs reported in NPPES

NPPES NPI Registry

Updated by the provider on Aug 18, 2023

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name
Mary Beth Tamasy
Title
Ceo
Phone
(703) 737-6010

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X NU Primary

Addresses

Primary practice location

211 Gibson Street, NW Suite 215
Leesburg, VA 20176-2115

Mailing address

224-D Cornwall Street, NW, Suite 403
Leesburg, VA 20176-2704
Phone (703) 737-6010

Other names 1

  • Valerie Williamson, MD Doing business as

National Provider Directory

National Provider Directory
Tax ID family
John M Archer MD305 organizations share this tax ID, including this one
Part of
John M Archer MD

Organizations with this tax ID in the same state 24

This tax ID family is large, so up to 24 of its organizations in the same state are linked here.

View all 24

Ownership & related parties

Parent organization (reported in NPPES) 1

This organization reports itself as a subpart in NPPES; the parent’s legal name matches this organization in the same state.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1505260800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1692316800000",
    "number": "1821517699",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "224-D CORNWALL STREET, NW, SUITE 403",
            "city": "LEESBURG",
            "state": "VA",
            "postal_code": "201762704",
            "telephone_number": "703-737-6010",
            "fax_number": "703-443-8643"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "211 GIBSON STREET, NW SUITE 215",
            "city": "LEESBURG",
            "state": "VA",
            "postal_code": "201762115",
            "telephone_number": "571-707-2079",
            "fax_number": "571-291-9196"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "LOUDOUN MEDICAL GROUP, PC",
        "organizational_subpart": "YES",
        "parent_organization_legal_business_name": "LOUDOUN MEDICAL GROUP, PC",
        "enumeration_date": "2017-09-13",
        "last_updated": "2023-08-18",
        "certification_date": "2023-08-18",
        "status": "A",
        "authorized_official_last_name": "TAMASY",
        "authorized_official_first_name": "MARY BETH",
        "authorized_official_title_or_position": "CEO",
        "authorized_official_telephone_number": "703-737-6010"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "NU",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "Valerie Williamson, MD",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in Leesburg, VA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 18, 2023; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.