Individual provider Active NPI

Sonja Flood, LCSW

  • Clinical Social Worker
  • Fairfax, VA
National Provider Identifier
1649845082
Registry record updated Apr 23, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Social WorkerTaxonomy code 1041C0700X
License
0904005573 Issued in VA
Practice address
8221 Willow Oaks Corporate Dr Ste 4-420
Fairfax, VA 22031-4512
Phone
(703) 289-7599
Fax
(703) 204-9001
NPI assigned
May 26, 2021
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 23, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Social Worker 1041C0700X 0904005573 VA Primary

Addresses

Primary practice location

8221 Willow Oaks Corporate Dr Ste 4-420
Fairfax, VA 22031-4512

Mailing address

PO Box 37174
Baltimore, MD 21297-3174
Phone (571) 423-5699

Other practice location 1

2501 Parkers Ln
Alexandria, VA 22306-3209
Phone (703) 664-7000

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in DC, VA2 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: No
  • Power mobility devices: No
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20241101003169 DC Practitioner - Clinical Social Worker 6709319460 Reassigns benefits to 1 organization
I20241204002430 VA Practitioner - Clinical Social Worker 6709319460 Reassigns benefits to 1 organization

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

Practice roles

OrganizationSpecialtyStatusNew patients
Inova Health Care Services CurrentSince Aug 23, 2024 Accepting new patients
Inova Health Care Services CurrentSince Aug 23, 2024 Accepting new patients

Locations

2501 Parkers Ln
Alexandria, VA 22306
Phone (703) 664-7000

8505 Arlington Blvd
Ste 200
Fairfax, VA 22031
Phone (703) 698-8525

8221 Willow Oaks Corporate Dr
Ste 4420
Fairfax, VA 22031
Phone (703) 289-7599

224 Cornwall St NW
Leesburg, VA 20176
Phone (703) 771-2894

44045 Riverside Pkwy
Leesburg, VA 20176
Phone (703) 858-6040

224B Cornwall St NW
Leesburg, VA 20176
Phone (703) 771-2894

Organizations & group practices 2

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1621987200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776902400000",
    "number": "1649845082",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 37174",
            "city": "BALTIMORE",
            "state": "MD",
            "postal_code": "212973174",
            "telephone_number": "571-423-5699",
            "fax_number": "571-423-5698"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8221 WILLOW OAKS CORPORATE DR STE 4-420",
            "city": "FAIRFAX",
            "state": "VA",
            "postal_code": "220314512",
            "telephone_number": "703-289-7599",
            "fax_number": "703-204-9001"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2501 Parkers Ln",
            "address_purpose": "LOCATION",
            "city": "Alexandria",
            "state": "VA",
            "postal_code": "223063209",
            "country_code": "US",
            "telephone_number": "703-664-7000",
            "fax_number": "703-664-7666",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "FLOOD",
        "first_name": "SONJA",
        "credential": "LCSW",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-05-26",
        "last_updated": "2026-04-23",
        "certification_date": "2026-04-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "VA",
            "license": "0904005573",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Fairfax, VA

Sources for this page

Verify at the official NPI Registry.