Individual provider Active NPI

Ryan Greco

  • General Practice Registered Nurse
  • South Milwaukee, WI
National Provider Identifier
1063387967
Registry record updated Jan 1, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
General Practice Registered NurseTaxonomy code 163WG0000X
License
141590-30 Issued in WI
Practice address
1643 Mackinac Ave
South Milwaukee, WI 53172-2905
Phone
(414) 745-8170
NPI assigned
Oct 9, 2025
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jan 1, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
General Practice Registered NurseGroup: 193400000X SINGLE SPECIALTY GROUP 163WG0000X 141590-30 WI Primary

Addresses

Primary practice location

1643 Mackinac Ave
South Milwaukee, WI 53172-2905

Mailing address

1643 Mackinac Ave
South Milwaukee, WI 53172-2905

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
141590-30WIMDGeneral Practice Registered Nurse

NPI Registry JSON

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

{
    "created_epoch": "1759968000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767225600000",
    "number": "1063387967",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1643 MACKINAC AVE",
            "city": "SOUTH MILWAUKEE",
            "state": "WI",
            "postal_code": "531722905"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1643 MACKINAC AVE",
            "city": "SOUTH MILWAUKEE",
            "state": "WI",
            "postal_code": "531722905",
            "telephone_number": "414-745-8170"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GRECO",
        "first_name": "RYAN",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2025-10-09",
        "last_updated": "2026-01-01",
        "certification_date": "2026-01-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163WG0000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Registered Nurse, General Practice",
            "state": "WI",
            "license": "141590-30",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in South Milwaukee, WI

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 1, 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.