Individual provider Active NPI

Mercedes Gutierrez, MSW, ASW # 109251

  • Social Worker
  • San Mateo, CA
National Provider Identifier
1508597857
Registry record updated Jun 12, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Social WorkerTaxonomy code 104100000X
Practice address
PO Box 5103
San Mateo, CA 94402-0103
Phone
(650) 288-0094
NPI assigned
Jun 17, 2022
Last updated
Jun 12, 2025By the provider in NPPES
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jun 12, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Social Worker 104100000X Primary

Addresses

Primary practice location

PO Box 5103
San Mateo, CA 94402-0103

Mailing address

1410 Marshall St
Redwood City, CA 94063-2503

Other names 1

  • Mercedes Ceron Tapia Former 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

NPI Registry JSON

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

{
    "created_epoch": "1655424000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1749686400000",
    "number": "1508597857",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1410 MARSHALL ST",
            "city": "REDWOOD CITY",
            "state": "CA",
            "postal_code": "940632503"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "PO BOX 5103",
            "city": "SAN MATEO",
            "state": "CA",
            "postal_code": "944020103",
            "telephone_number": "650-288-0094"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GUTIERREZ",
        "first_name": "MERCEDES",
        "credential": "MSW, ASW # 109251",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2022-06-17",
        "last_updated": "2025-06-12",
        "certification_date": "2025-06-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MERCEDES",
            "last_name": "CERON TAPIA",
            "code": "1",
            "type": "Former 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 Jun 12, 2025; 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.