Katja Laronge Seitz, APNP

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

16382-33 Issued in WI

Practice address

206 E Olin Ave # 101
Madison, WI 53713-1434

Phone

(608) 960-7699

NPI assigned

Nov 21, 2025

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

State licenses

Practice roles

Locations

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.

• Bristol Hospice - Madison, L.L.C.

  • Community Based Hospice Care Agency
  • Madison, WI
  • NPI 1992382733
  NPD

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

{
    "created_epoch": "1763683200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763683200000",
    "number": "1639030240",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "206 E OLIN AVE # 101",
            "city": "MADISON",
            "state": "WI",
            "postal_code": "537131434",
            "telephone_number": "608-960-7699"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "206 E OLIN AVE # 101",
            "city": "MADISON",
            "state": "WI",
            "postal_code": "537131434",
            "telephone_number": "608-960-7699"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SEITZ",
        "first_name": "KATJA",
        "middle_name": "LARONGE",
        "credential": "APNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-11-21",
        "last_updated": "2025-11-21",
        "certification_date": "2025-11-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "WI",
            "license": "16382-33",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Amber Seifert
• Erin L. Seiler, MA, BCBA
• Hailey Seils
• Lauren Seiter, PMHNP
• Allison Jennifer Seitz, MD
• Kirsten Seiverd
• Sekanick Chiropractic Comprehensive Spinal Clinic Inc
• Christopher Jeff Sekanick, D.C.
• Samuel Ron Sekanick, D.C.
• Heather Rose Seldal-Gilbertson, RN

• Family Nurse Practitioner in Madison, WI
• Providers in Madison, WI by specialty
• Family Nurse Practitioner in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 21, 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.