NPIMap

Organization Active NPI

West Coast Diagnostics LLC

  • Sleep Disorder Diagnostic Clinic/Center
  • Stockton, CA
National Provider Identifier
1972874501
Registry record updated Dec 15, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Sleep Disorder Diagnostic Clinic/CenterTaxonomy code 261QS1200X
License
109903 Issued in CA
Legal business name
WEST COAST DIAGNOSTICS LLC
Practice address
8978 Bainbridge PL
Stockton, CA 95209-4807
Phone
(209) 406-4142
NPI assigned
Jan 12, 2012
Organization subpart
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

Authorized official

Name
Virginia A Krapf, RCPNPI 1417967860
Title
Owner
Phone
(209) 406-4142

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Sleep Disorder Diagnostic Clinic/Center 261QS1200X 109903 CA Primary
Physiological Laboratory 293D00000X

Addresses

Primary practice location

8978 Bainbridge PL
Stockton, CA 95209-4807

Mailing address

8978 Bainbridge PL
Stockton, CA 95209-4807
Phone (209) 406-4142

Other names 1

  • West Coast Diagnostics Doing business as

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20121214000392 CA Part B Supplier - Independent Diagnostic Testing Facility (Idtf) 3870745037 Practice locations: Stockton, CA

National Provider Directory

National Provider Directory

Practitioners & affiliated clinicians

Practitioners 16

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

View all 16

NPI Registry JSON

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

{
    "created_epoch": "1326326400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1765756800000",
    "number": "1972874501",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8978 BAINBRIDGE PL",
            "city": "STOCKTON",
            "state": "CA",
            "postal_code": "952094807",
            "telephone_number": "209-406-4142"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8978 BAINBRIDGE PL",
            "city": "STOCKTON",
            "state": "CA",
            "postal_code": "952094807",
            "telephone_number": "209-406-4142"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "WEST COAST DIAGNOSTICS LLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2012-01-12",
        "last_updated": "2025-12-15",
        "certification_date": "2025-12-15",
        "status": "A",
        "authorized_official_last_name": "KRAPF",
        "authorized_official_first_name": "VIRGINIA",
        "authorized_official_middle_name": "A",
        "authorized_official_title_or_position": "OWNER",
        "authorized_official_telephone_number": "209-406-4142",
        "authorized_official_credential": "RCP"
    },
    "taxonomies": [
        {
            "code": "261QS1200X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Sleep Disorder Diagnostic",
            "state": "CA",
            "license": "109903",
            "primary": true
        },
        {
            "code": "293D00000X",
            "taxonomy_group": "",
            "desc": "Physiological Laboratory",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "West Coast Diagnostics",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in Stockton, CA

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.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.