Individual provider Active NPI

Vivien Wai Wan Sit

  • Occupational Therapist
  • Lawndale, CA
National Provider Identifier
1659283679
Registry record updated Sep 22, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Occupational TherapistTaxonomy code 225X00000X
License
OT7118 Issued in CA
Practice address
4161 W 147TH St
Lawndale, CA 90260-1709
Phone
(310) 973-1300
NPI assigned
Sep 22, 2026
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Sep 22, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Occupational Therapist 225X00000X OT7118 CA Primary

Addresses

Primary practice location

4161 W 147TH St
Lawndale, CA 90260-1709

Mailing address

4161 W 147TH St
Lawndale, CA 90260-1709
Phone (310) 973-1300

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": "1790035200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790035200000",
    "number": "1659283679",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4161 W 147TH ST",
            "city": "LAWNDALE",
            "state": "CA",
            "postal_code": "902601709",
            "telephone_number": "310-973-1300"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4161 W 147TH ST",
            "city": "LAWNDALE",
            "state": "CA",
            "postal_code": "902601709",
            "telephone_number": "310-973-1300"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIT",
        "first_name": "VIVIEN",
        "middle_name": "WAI WAN",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2026-09-22",
        "last_updated": "2026-09-22",
        "certification_date": "2026-09-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "225X00000X",
            "taxonomy_group": "",
            "desc": "Occupational Therapist",
            "state": "CA",
            "license": "OT7118",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Lawndale, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 22, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.

Verify at the official NPI Registry.