Individual provider Active NPI

Kristin T Kastner, NP

  • Nurse Practitioner
  • Waukesha, WI
National Provider Identifier
1659488187
Registry record updated Mar 23, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nurse PractitionerTaxonomy code 363L00000X
License
520-033 Issued in WI
Practice address
100 N East Ave
Waukesha, WI 53186-3103
Phone
(262) 524-7233
Fax
(262) 650-4897
NPI assigned
Aug 23, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 23, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Nurse Practitioner 363L00000X 520-033 WI Primary

Addresses

Primary practice location

100 N East Ave
Waukesha, WI 53186-3103

Mailing address

100 N East Ave
Waukesha, WI 53186-3103
Phone (262) 524-7233

Other identifiers 1

IdentifierTypeStateIssuer
43363200MedicaidWI

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
Credentials
Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
520-033WIMDNurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Aurora Medical Group, Inc. Past Accepting new patients
Carroll University Inc. PastSince Feb 9, 2025 Accepting new patients

Interoperability endpoints

  • Direct secure messaging: kkastner95993@direct.myadvocateaurora.org

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": "1156291200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774224000000",
    "number": "1659488187",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "100 N EAST AVE",
            "city": "WAUKESHA",
            "state": "WI",
            "postal_code": "531863103",
            "telephone_number": "262-524-7233",
            "fax_number": "262-650-4897"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 N EAST AVE",
            "city": "WAUKESHA",
            "state": "WI",
            "postal_code": "531863103",
            "telephone_number": "262-524-7233",
            "fax_number": "262-650-4897"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KASTNER",
        "first_name": "KRISTIN",
        "middle_name": "T",
        "name_prefix": "Ms.",
        "credential": "NP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-08-23",
        "last_updated": "2026-03-23",
        "certification_date": "2026-03-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "WI",
            "license": "520-033",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "43363200",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Waukesha, WI

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 23, 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.