Individual provider Active NPI

Margaret Tsay, BSN

  • School Registered Nurse
  • Monterey Park, CA
National Provider Identifier
1295649770
Registry record updated Sep 30, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
School Registered NurseTaxonomy code 163WS0200X
License
437222 Issued in CA
Practice address
252 W Riggin St
Monterey Park, CA 91754-7123
Phone
(323) 855-4568
NPI assigned
Sep 30, 2026
Last updated
Sep 30, 2026By the provider in NPPES
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Sep 30, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
School Registered Nurse 163WS0200X 437222 CA Primary

Addresses

Primary practice location

252 W Riggin St
Monterey Park, CA 91754-7123

Mailing address

252 W Riggin St
Monterey Park, CA 91754-7123
Phone (323) 855-4568

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": "1790726400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790726400000",
    "number": "1295649770",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "252 W RIGGIN ST",
            "city": "MONTEREY PARK",
            "state": "CA",
            "postal_code": "917547123",
            "telephone_number": "323-855-4568"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "252 W RIGGIN ST",
            "city": "MONTEREY PARK",
            "state": "CA",
            "postal_code": "917547123",
            "telephone_number": "323-855-4568"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TSAY",
        "first_name": "MARGARET",
        "credential": "BSN",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2026-09-30",
        "last_updated": "2026-09-30",
        "certification_date": "2026-09-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163WS0200X",
            "taxonomy_group": "",
            "desc": "Registered Nurse, School",
            "state": "CA",
            "license": "437222",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Monterey Park, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 30, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.

Verify at the official NPI Registry.