NPIMap

Organization Active NPI

William Cox Dental Corporation

Doing business as Gentle Dental Sunnyvale

  • Dentist
  • Sunnyvale, CA
National Provider Identifier
1063454411
Registry record updated Aug 22, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
DentistTaxonomy code 122300000X
Legal business name
WILLIAM COX DENTAL CORPORATION
Doing business as
Gentle Dental Sunnyvale
Practice address
1639 Hollenbeck Ave
Sunnyvale, CA 94087-5402
Phone
(408) 732-6931
Fax
(408) 731-8660
NPI assigned
Jun 11, 2006
Last updated
Aug 22, 2025By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Aug 22, 2025

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

Authorized official

Name
Dr. William J Cox, DDS
Title
PC Owner/President
Phone
(800) 684-6440

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Dentist 122300000X NU Primary

Addresses

Primary practice location

1639 Hollenbeck Ave
Sunnyvale, CA 94087-5402

Mailing address

PO Box 872710
Vancouver, WA 98687-2710
Phone (360) 869-7645

Other names 1

  • Gentle Dental Sunnyvale Doing business as

National Provider Directory

National Provider Directory
Tax ID family
Gentle Dental Brentwood24 organizations share this tax ID, including this one

Other organizations with this tax ID 23

Organizations that report the same tax identification number in the National Provider Directory.

View all 23

Locations

1639 Hollenbeck Ave
Sunnyvale, CA 94087
Phone (408) 359-5144

Practitioners & affiliated clinicians

Practitioners 4

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

NPI Registry JSON

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

{
    "created_epoch": "1149984000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1755820800000",
    "number": "1063454411",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 872710",
            "city": "VANCOUVER",
            "state": "WA",
            "postal_code": "986872710",
            "telephone_number": "360-869-7645",
            "fax_number": "877-725-7443"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1639 HOLLENBECK AVE",
            "city": "SUNNYVALE",
            "state": "CA",
            "postal_code": "940875402",
            "telephone_number": "408-732-6931",
            "fax_number": "408-731-8660"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "WILLIAM COX DENTAL CORPORATION",
        "organizational_subpart": "NO",
        "enumeration_date": "2006-06-11",
        "last_updated": "2025-08-22",
        "certification_date": "2025-08-22",
        "status": "A",
        "authorized_official_last_name": "COX",
        "authorized_official_first_name": "WILLIAM",
        "authorized_official_middle_name": "J",
        "authorized_official_title_or_position": "PC OWNER/PRESIDENT",
        "authorized_official_telephone_number": "800-684-6440",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "DDS"
    },
    "taxonomies": [
        {
            "code": "122300000X",
            "taxonomy_group": "",
            "desc": "Dentist",
            "state": "NU",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "Gentle Dental Sunnyvale",
            "code": "3",
            "type": "Doing Business As"
        },
        {
            "organization_name": "Gentle Dental Sunnyvale",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in Sunnyvale, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 22, 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.