Individual provider Active NPI

Niles Cook, PSY.D.

  • Psychologist
  • Vienna, VA
National Provider Identifier
1376824466
Registry record updated May 14, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
PsychologistTaxonomy code 103T00000X
License
0810008468 Issued in VA
Practice address
8245 Boone Blvd Ste 630
Vienna, VA 22182-3894
Phone
(703) 261-9148
NPI assigned
Sep 1, 2011
Last updated
May 14, 2026By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on May 14, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
PsychologistGroup: 193400000X SINGLE SPECIALTY GROUP 103T00000X 0810008468 VA Primary

Addresses

Primary practice location

8245 Boone Blvd Ste 630
Vienna, VA 22182-3894

Mailing address

8245 Boone Blvd Ste 630
Vienna, VA 22182-3894
Phone (703) 261-9148

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)
Enrolled

State licenses

LicenseStateTypeSpecialty
0810008468VAMDPsychologist

NPI Registry JSON

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

{
    "created_epoch": "1314835200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778716800000",
    "number": "1376824466",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8245 BOONE BLVD STE 630",
            "city": "VIENNA",
            "state": "VA",
            "postal_code": "221823894",
            "telephone_number": "703-261-9148"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8245 BOONE BLVD STE 630",
            "city": "VIENNA",
            "state": "VA",
            "postal_code": "221823894",
            "telephone_number": "703-261-9148"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "COOK",
        "first_name": "NILES",
        "credential": "PSY.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2011-09-01",
        "last_updated": "2026-05-14",
        "certification_date": "2026-05-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103T00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Psychologist",
            "state": "VA",
            "license": "0810008468",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Vienna, VA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 14, 2026; 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.