NPIMap

Organization Active NPI

Loudoun Medical Group, PC

Doing business as Valerie Williamson, MD

  • Urgent Care Clinic/Center
  • Sterling, VA
National Provider Identifier
1033638739
Registry record updated Aug 17, 2023
On this page

Key facts

NPPES NPI Registry
Primary specialty
Urgent Care Clinic/CenterTaxonomy code 261QU0200X
Legal business name
LOUDOUN MEDICAL GROUP, PC
Doing business as
Valerie Williamson, MD
Practice address
46440 Benedict Dr Ste 107
Sterling, VA 20164-6602
Phone
(571) 707-2079
Fax
(571) 291-9196
NPI assigned
Sep 13, 2017
Last updated
Aug 17, 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 17, 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
Urgent Care Clinic/Center 261QU0200X NU Primary

Addresses

Primary practice location

46440 Benedict Dr Ste 107
Sterling, VA 20164-6602

Mailing address

224D Cornwall St NW Ste 403
Leesburg, VA 20176-2704
Phone (703) 737-6001

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 22

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

View all 22

Locations

46440 Benedict Dr
Ste 107
Sterling, VA 20164
Phone (703) 444-5000

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": "1692230400000",
    "number": "1033638739",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "224D CORNWALL ST NW STE 403",
            "city": "LEESBURG",
            "state": "VA",
            "postal_code": "201762704",
            "telephone_number": "703-737-6001",
            "fax_number": "703-443-8643"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "46440 BENEDICT DR STE 107",
            "city": "STERLING",
            "state": "VA",
            "postal_code": "201646602",
            "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": "2023-08-17",
        "certification_date": "2023-08-17",
        "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": "261QU0200X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Urgent Care",
            "state": "NU",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "Valerie Williamson, MD",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in Sterling, VA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 17, 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.