Individual provider Active NPI

William Nmi Mello, LCSW

  • Clinical Social Worker
  • Madison, WI
National Provider Identifier
1912946013
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Social WorkerTaxonomy code 1041C0700X
License
103-123 Issued in WI
Practice address
6510 Grand Teton PLZ
Suite 406
Madison, WI 53719-1029
Phone
(608) 833-9290
Fax
(608) 833-9691
NPI assigned
Jun 5, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 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 103-123 WI Primary

Addresses

Primary practice location

6510 Grand Teton PLZ
Suite 406
Madison, WI 53719-1029

Mailing address

6510 Grand Teton PLZ
Suite 406
Madison, WI 53719-1029
Phone (608) 833-9290

Other identifiers 3

IdentifierTypeStateIssuer
W10120OtherWIJOHN DEERE HEALTH
10540OtherWIDEAN HEALTH PLAN
39286400MedicaidWI

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)
Enrolled

State licenses

LicenseStateTypeSpecialty
103-123WIMDClinical Social Worker
103WIMDAnesthesiologist Assistant

NPI Registry JSON

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

{
    "created_epoch": "1149465600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1912946013",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6510 GRAND TETON PLZ",
            "address_2": "SUITE 406",
            "city": "MADISON",
            "state": "WI",
            "postal_code": "537191029",
            "telephone_number": "608-833-9290",
            "fax_number": "608-833-9691"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6510 GRAND TETON PLZ",
            "address_2": "SUITE 406",
            "city": "MADISON",
            "state": "WI",
            "postal_code": "537191029",
            "telephone_number": "608-833-9290",
            "fax_number": "608-833-9691"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MELLO",
        "first_name": "WILLIAM",
        "middle_name": "NMI",
        "name_prefix": "Mr.",
        "credential": "LCSW",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-05",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "WI",
            "license": "103-123",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "JOHN DEERE HEALTH",
            "identifier": "W10120",
            "state": "WI"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "DEAN HEALTH PLAN",
            "identifier": "10540",
            "state": "WI"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "39286400",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Madison, WI

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.