Westwood & Streeterville Associates, LLC

Primary specialty

Personal Care AttendantTaxonomy code 3747P1801X

Legal business name

WESTWOOD & STREETERVILLE ASSOCIATES, LLC

Practice address

950 Northgate Dr Ste 205
San Rafael, CA 94903-3433

Phone

(415) 202-5520

Fax

(415) 202-5815

NPI assigned

Apr 8, 2026

Organization subpart

No

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

Authorized official

Name

Dr. Ronald Herzig, PHD

Title

President

Phone

(415) 202-5524

Specialties & licenses 2

Addresses

Locations

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

{
    "created_epoch": "1775606400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1775606400000",
    "number": "1043152960",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "950 NORTHGATE DR STE 205",
            "city": "SAN RAFAEL",
            "state": "CA",
            "postal_code": "949033433",
            "telephone_number": "415-202-5520",
            "fax_number": "415-202-5815"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "950 NORTHGATE DR STE 205",
            "city": "SAN RAFAEL",
            "state": "CA",
            "postal_code": "949033433",
            "telephone_number": "415-202-5520",
            "fax_number": "415-202-5815"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "WESTWOOD & STREETERVILLE ASSOCIATES, LLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2026-04-08",
        "last_updated": "2026-04-08",
        "certification_date": "2026-04-08",
        "status": "A",
        "authorized_official_last_name": "HERZIG",
        "authorized_official_first_name": "RONALD",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "415-202-5524",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "PHD"
    },
    "taxonomies": [
        {
            "code": "3747A0650X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Technician, Attendant Care Provider",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "3747P1801X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Technician, Personal Care Attendant",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 8, 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.