Individual provider Active NPI

Katharine Mullin

  • Social Worker
  • Bronx, NY
National Provider Identifier
1447128400
Registry record updated Oct 29, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Social WorkerTaxonomy code 104100000X
License
128135 Issued in NY
Practice address
529 Courtlandt Ave
Bronx, NY 10451-5007
Phone
(718) 993-7700
NPI assigned
Oct 29, 2025
Sex
Unspecified or another gender identity
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 29, 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 128135 NY Primary

Addresses

Primary practice location

529 Courtlandt Ave
Bronx, NY 10451-5007

Mailing address

4534 47TH St Apt 6CD
Woodside, NY 11377-5217

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
128135NYMDSocial Worker

Practice roles

OrganizationSpecialtyStatusNew patients
Cardinal McCloskey School & Home for Children, Inc. CurrentSince Nov 8, 2025 Accepting new patients
Cardinal McCloskey School and Home for Children PastSince Nov 8, 2025 Accepting new patients

Locations

529 Courtlandt Ave
Bronx, NY 10451
Phone (718) 402-2150

Organizations & group practices 2

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1761696000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761696000000",
    "number": "1447128400",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4534 47TH ST APT 6CD",
            "city": "WOODSIDE",
            "state": "NY",
            "postal_code": "113775217"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "529 COURTLANDT AVE",
            "city": "BRONX",
            "state": "NY",
            "postal_code": "104515007",
            "telephone_number": "718-993-7700"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MULLIN",
        "first_name": "KATHARINE",
        "sole_proprietor": "NO",
        "sex": "X",
        "enumeration_date": "2025-10-29",
        "last_updated": "2025-10-29",
        "certification_date": "2025-10-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "NY",
            "license": "128135",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Bronx, NY

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 29, 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.