Individual provider Active NPI

Denise Louella Williams, RN

  • Home Health Registered Nurse
  • San Francisco, CA
National Provider Identifier
1245142983
Registry record updated Sep 18, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Home Health Registered NurseTaxonomy code 163WH0200X
License
95045258 Issued in CA
Practice address
4150 Clement St RM 1-103
San Francisco, CA 94121-1563
Phone
(415) 221-4810
NPI assigned
Sep 18, 2026
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Sep 18, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Home Health Registered Nurse 163WH0200X 95045258 CA Primary

Addresses

Primary practice location

4150 Clement St RM 1-103
San Francisco, CA 94121-1563

Mailing address

4150 Clement St RM 1-103
San Francisco, CA 94121-1563
Phone (415) 221-4810

Medicare participation

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

NPI Registry JSON

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

{
    "created_epoch": "1789689600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1789689600000",
    "number": "1245142983",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4150 CLEMENT ST RM 1-103",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941211563",
            "telephone_number": "415-221-4810"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4150 CLEMENT ST RM 1-103",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941211563",
            "telephone_number": "415-221-4810"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "DENISE",
        "middle_name": "LOUELLA",
        "credential": "RN",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2026-09-18",
        "last_updated": "2026-09-18",
        "certification_date": "2026-09-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163WH0200X",
            "taxonomy_group": "",
            "desc": "Registered Nurse, Home Health",
            "state": "CA",
            "license": "95045258",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 18, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.

Verify at the official NPI Registry.