NPIMap

Individual provider Active NPI

Ethan Rosen

  • Internal Medicine Physician
  • Summit, WI
National Provider Identifier
1427799543
Registry record updated Sep 10, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
83425-20 Issued in WI
Practice address
36500 Aurora Dr
Summit, WI 53066-4899
Phone
(262) 434-1000
NPI assigned
Apr 5, 2022
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 10, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 83425-20 WI Primary

Addresses

Primary practice location

36500 Aurora Dr
Summit, WI 53066-4899

Mailing address

PO Box 735044
Chicago, IL 60673-5044
Phone (800) 326-2250

Other practice location 1

8701 Watertown Plank Rd
Milwaukee, WI 53226-3548
Phone (414) 955-8296

Other identifiers 1

IdentifierTypeStateIssuer
100222737MedicaidWI

Electronic endpoints 2

TypeEndpointUseAffiliation
FHIR URL https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/ Direct
Direct Messaging Address erosen321407@direct.myadvocateaurora.org Direct

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
I20250703001577 WI Practitioner - Internal Medicine 5991174369 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Other, 2022
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Aurora Medical Group, Inc.Group PAC ID 6709794258, 3,764 clinicians

Practice addresses (Care Compare)

36500 Aurora Dr
Summit, WI 53066-4899
Phone (262) 434-5000

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
83425-20WIMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Aurora Medical Group, Inc. CurrentSince Aug 1, 2025 Accepting new patients
Aurora Medical Group, Inc. Internal Medicine Current Accepting new patients
Aurora Medical Group, Inc. CurrentSince Aug 1, 2025 Accepting new patients

Locations

1020 N 12th St
Milwaukee, WI 53233
Phone (414) 219-3056

36500 Aurora Dr
Summit, WI 53066
Phone (262) 434-1000

Interoperability endpoints

  • Direct secure messaging: erosen321407@direct.myadvocateaurora.org

Organizations & group practices 3

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 6

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

NPI Registry JSON

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

{
    "created_epoch": "1649116800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757462400000",
    "number": "1427799543",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 735044",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606735044",
            "telephone_number": "800-326-2250"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "36500 AURORA DR",
            "city": "SUMMIT",
            "state": "WI",
            "postal_code": "530664899",
            "telephone_number": "262-434-1000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "8701 Watertown Plank Rd",
            "address_purpose": "LOCATION",
            "city": "Milwaukee",
            "state": "WI",
            "postal_code": "532263548",
            "country_code": "US",
            "telephone_number": "414-955-8296",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ROSEN",
        "first_name": "ETHAN",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-04-05",
        "last_updated": "2025-09-10",
        "certification_date": "2025-09-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "WI",
            "license": "83425-20",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100222737",
            "state": "WI"
        }
    ],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "36500 Aurora Dr",
            "city": "Summit",
            "state": "WI",
            "country_code": "US",
            "postal_code": "530664899",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "erosen321407@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "36500 Aurora Dr",
            "city": "Summit",
            "state": "WI",
            "country_code": "US",
            "postal_code": "530664899",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Summit, WI

Sources for this page

Verify at the official NPI Registry.