Individual provider Active NPI

Delaney Erin Gilfoyle, LMSW

  • Social Worker
  • McLean, VA
National Provider Identifier
1205790185
Registry record updated Dec 15, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Social WorkerTaxonomy code 104100000X
License
0903004773 Issued in VA
Practice address
1775 Greensboro Station PL Ste 475
MC Lean, VA 22102-5218
Phone
(703) 520-1072
NPI assigned
Dec 15, 2025
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 15, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Social Worker 104100000X 0903004773 VA Primary

Addresses

Primary practice location

1775 Greensboro Station PL Ste 475
MC Lean, VA 22102-5218

Mailing address

1801 Crystal Dr Apt 403
Arlington, VA 22202-4414

Other practice location 1

2000 15th St N Ste 1003
Arlington, VA 22201-2610
Phone (703) 520-1072

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled

State licenses

LicenseStateTypeSpecialty
0903004773VAMDSocial Worker

Practice roles

OrganizationSpecialtyStatusNew patients
Majkogroup LLC CurrentSince Dec 1, 2023 Accepting new patients
Iris Therapy Services, LLC PastSince Apr 6, 2023 Accepting new patients

Locations

2000 15th St N
Ste 1003
Arlington, VA 22201
Phone (703) 520-1072

1775 Greensboro Station Pl
Ste 475
Mc Lean, VA 22102
Phone (703) 520-1072

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

NPI Registry JSON

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

{
    "created_epoch": "1765756800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765756800000",
    "number": "1205790185",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1801 CRYSTAL DR APT 403",
            "city": "ARLINGTON",
            "state": "VA",
            "postal_code": "222024414"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1775 GREENSBORO STATION PL STE 475",
            "city": "MC LEAN",
            "state": "VA",
            "postal_code": "221025218",
            "telephone_number": "703-520-1072"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2000 15th St N Ste 1003",
            "address_purpose": "LOCATION",
            "city": "Arlington",
            "state": "VA",
            "postal_code": "222012610",
            "country_code": "US",
            "telephone_number": "703-520-1072",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GILFOYLE",
        "first_name": "DELANEY",
        "middle_name": "ERIN",
        "credential": "LMSW",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-12-15",
        "last_updated": "2025-12-15",
        "certification_date": "2025-12-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "VA",
            "license": "0903004773",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in McLean, VA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 15, 2025; 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.