NPIMap

Individual provider Active NPI

Macaela Jo Cornelissen, DNP, NNP-BC

  • Critical Care Neonatal Nurse Practitioner
  • Marshfield, WI
National Provider Identifier
1831775857
Registry record updated Jun 4, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Critical Care Neonatal Nurse PractitionerTaxonomy code 363LN0005X
License
14025 Issued in WI
Practice address
1000 N Oak Ave
Marshfield, WI 54449-5703
Phone
(715) 387-5511
NPI assigned
Mar 21, 2021
Last updated
Jun 4, 2026By the provider in NPPES
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jun 4, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Critical Care Neonatal Nurse Practitioner 363LN0005X 14025 WI Primary
Neonatal Intensive Care Registered Nurse 163WN0002X 234927 WI

Addresses

Primary practice location

1000 N Oak Ave
Marshfield, WI 54449-5703

Mailing address

1000 N Oak Ave
Marshfield, WI 54449-5703
Phone (715) 387-5511

Other practice location 1

1376 Partridge Rd
DE Pere, WI 54115-9651
Phone (920) 419-5498

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address him@marshfieldclinichealthsystem.cernerdirect.com

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
I20240902000174 WI Practitioner - Nurse Practitioner 9739628900 Reassigns benefits to 12 organizations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

Practice roles

OrganizationSpecialtyStatusNew patients
Aspirus Wausau Hospital, Inc. CurrentSince Aug 16, 2024 Accepting new patients
Aspirus Wausau Hospital, Inc. Current Accepting new patients
Aspirus Wausau Hospital, Inc. CurrentSince Aug 16, 2024 Accepting new patients

Locations

29980 Network Pl
Chicago, IL 60673

2251 N Shore Dr
Rhinelander, WI 54501
Phone (715) 361-2300

5409 Vern Holmes Dr
Stevens Point, WI 54482
Phone (715) 342-1015

333 Pine Ridge Blvd
Wausau, WI 54401
Phone (715) 847-2160

2031 Peach St
Wisconsin Rapids, WI 54494
Phone (715) 423-0122

Organizations & group practices 13

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

View all 13

NPI Registry JSON

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

{
    "created_epoch": "1616284800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780531200000",
    "number": "1831775857",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1000 N OAK AVE",
            "city": "MARSHFIELD",
            "state": "WI",
            "postal_code": "544495703",
            "telephone_number": "715-387-5511"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1000 N OAK AVE",
            "city": "MARSHFIELD",
            "state": "WI",
            "postal_code": "544495703",
            "telephone_number": "715-387-5511"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1376 Partridge Rd",
            "address_purpose": "LOCATION",
            "city": "DE Pere",
            "state": "WI",
            "postal_code": "541159651",
            "country_code": "US",
            "telephone_number": "920-419-5498",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CORNELISSEN",
        "first_name": "MACAELA",
        "middle_name": "JO",
        "credential": "DNP, NNP-BC",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2021-03-21",
        "last_updated": "2026-06-04",
        "certification_date": "2026-06-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LN0005X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Neonatal, Critical Care",
            "state": "WI",
            "license": "14025",
            "primary": true
        },
        {
            "code": "163WN0002X",
            "taxonomy_group": "",
            "desc": "Registered Nurse, Neonatal Intensive Care",
            "state": "WI",
            "license": "234927",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "him@marshfieldclinichealthsystem.cernerdirect.com",
            "affiliation": "N",
            "address_1": "1000 N Oak Ave",
            "city": "Marshfield",
            "state": "WI",
            "country_code": "US",
            "postal_code": "544495703",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Marshfield, WI

Sources for this page

Verify at the official NPI Registry.