Individual provider Active NPI

Jiayan Ou

  • Clinical Social Worker
  • San Mateo, CA
National Provider Identifier
1093424525
Registry record updated Feb 3, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Social WorkerTaxonomy code 1041C0700X
License
ASW122625 Issued in CA
Practice address
2000 Alameda de Las Pulgas
San Mateo, CA 94403-1269
Phone
(510) 604-9861
NPI assigned
Nov 23, 2022
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 3, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Social Worker 1041C0700X ASW122625 CA Primary

Addresses

Primary practice location

2000 Alameda de Las Pulgas
San Mateo, CA 94403-1269

Mailing address

2000 Alameda de Las Pulgas
San Mateo, CA 94403-1269
Phone (510) 604-9861

Other names 1

  • Constance Ou Other name

Medicare participation

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

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled

State licenses

LicenseStateTypeSpecialty
ASW122625CAMDClinical Social Worker

NPI Registry JSON

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

{
    "created_epoch": "1669161600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770076800000",
    "number": "1093424525",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2000 ALAMEDA DE LAS PULGAS",
            "city": "SAN MATEO",
            "state": "CA",
            "postal_code": "944031269",
            "telephone_number": "510-604-9861"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2000 ALAMEDA DE LAS PULGAS",
            "city": "SAN MATEO",
            "state": "CA",
            "postal_code": "944031269",
            "telephone_number": "510-604-9861"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "OU",
        "first_name": "JIAYAN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2022-11-23",
        "last_updated": "2026-02-03",
        "certification_date": "2026-02-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "CA",
            "license": "ASW122625",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "CONSTANCE",
            "last_name": "OU",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

Other providers in San Mateo, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 3, 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.