NPIMap

Individual provider Active NPI

Katy Ellingson, PA-C

  • Physician Assistant
  • Menomonee Falls, WI
National Provider Identifier
1891995056
Registry record updated Jan 30, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
2190-23 Issued in WI
Practice address
W129N7055 Northfield Dr
Menomonee Falls, WI 53051-0538
Phone
(262) 253-5400
NPI assigned
Jul 24, 2007
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 30, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X NOT YET ISSUED WI
Physician Assistant 363A00000X 2190-23 WI Primary

Addresses

Primary practice location

W129N7055 Northfield Dr
Menomonee Falls, WI 53051-0538

Mailing address

W129N7055 Northfield Dr
Menomonee Falls, WI 53051-0538
Phone (262) 253-5400

Other identifiers 2

IdentifierTypeStateIssuer
033005090OtherMEDICARE
41946400MedicaidWI

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WI
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20071019000436 WI Practitioner - Physician Assistant 9537255674 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2007
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Aspirus Rhinelander and Tomahawk Hospitals and Clinics, Inc.Group PAC ID 9335059856, shared by 17 NPIs, 566 clinicians

Practice addresses (Care Compare)

240 Maple St
Woodruff, WI 54568-9190
Phone (715) 356-8140

Hospital & facility affiliations

  • Howard Young Medical Center Hospital, Woodruff, WI, CCN 520091
  • Aspirus Wausau Hospital Hospital, Wausau, WI, CCN 520030

Merit-based Incentive Payment System (MIPS)

Final score
87.84 of 100Reported as group
Quality
86.21
Promoting interoperability
100
Improvement activities
40
Cost
73.25

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

State licenses

LicenseStateTypeSpecialty
2190-23WIMDPhysician Assistant
NOT YET ISSUEDWIMDStudent in an Organized Health Care Education/Training Program

Practice roles

OrganizationSpecialtyStatusNew patients
Froedtert &the Medical College of Wisconsin Community Physicians, Inc. CurrentSince Jan 9, 2026 Accepting new patients
Froedtert &the Medical College of Wisconsin Community Physicians, Inc. CurrentSince Jan 9, 2026 Accepting new patients
Columbia St. Mary'S Hospital Milwaukee, Inc CurrentSince Jan 7, 2013 Accepting new patients
Columbia St. Mary'S Hospital Milwaukee Inc CurrentSince Jan 7, 2013 Accepting new patients
The Medical College of Wisconsin, Inc. Current Accepting new patients

Locations

W168N11237 Western Ave
Germantown, WI 53022
Phone (262) 253-5060

N112W15415 Mequon Rd
Germantown, WI 53022
Phone (262) 250-7800

6900 N Port Washington Rd
Glendale, WI 53217
Phone (414) 270-8100

1000 N Oak Ave
Marshfield, WI 54449
Phone (715) 387-5111

W129N7055 Northfield Dr
Menomonee Falls, WI 53051
Phone (262) 251-5305

1155 N Mayfair Rd
Wauwatosa, WI 53226
Phone (414) 955-5990

Organizations & group practices 6

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.

Hospital & facility affiliations 13

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

View all 13

NPI Registry JSON

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

{
    "created_epoch": "1185235200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769731200000",
    "number": "1891995056",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "W129N7055 NORTHFIELD DR",
            "city": "MENOMONEE FALLS",
            "state": "WI",
            "postal_code": "530510538",
            "telephone_number": "262-253-5400"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "W129N7055 NORTHFIELD DR",
            "city": "MENOMONEE FALLS",
            "state": "WI",
            "postal_code": "530510538",
            "telephone_number": "262-253-5400"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ELLINGSON",
        "first_name": "KATY",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-07-24",
        "last_updated": "2026-01-30",
        "certification_date": "2026-01-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "WI",
            "license": "NOT YET ISSUED",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "WI",
            "license": "2190-23",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE",
            "identifier": "033005090",
            "state": null
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "41946400",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Menomonee Falls, WI

Sources for this page

Verify at the official NPI Registry.