NPIMap

Individual provider Active NPI

Abdelrazeg Abubaker a Houssein, MD

  • Hospitalist Physician
  • West Allis, WI
National Provider Identifier
1841817087
Registry record updated Jul 27, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hospitalist PhysicianTaxonomy code 208M00000X
License
81639 Issued in WI
Practice address
8901 W Lincoln Ave
West Allis, WI 53227-2409
Phone
(414) 328-6000
Fax
(414) 649-1328
NPI assigned
Jul 4, 2020
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 27, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Hospitalist Physician 208M00000X 81639 WI Primary

Addresses

Primary practice location

8901 W Lincoln Ave
West Allis, WI 53227-2409

Mailing address

PO Box 735044
Chicago, IL 60673-5044

Other identifiers 1

IdentifierTypeStateIssuer
100245313MedicaidWI

Electronic endpoints 2

TypeEndpointUseAffiliation
Direct Messaging Address ahoussein379457@direct.myadvocateaurora.org Direct
FHIR URL https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/

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
I20230808001712 WI Practitioner - Hospitalist 7618392101 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Hospitalist
Education
Other, 2014
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Aurora Medical Group, Inc.Group PAC ID 6709794258, 3,764 clinicians

Practice addresses (Care Compare)

8901 W Lincoln Ave
West Allis, WI 53227-2409
Phone (414) 329-5930

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
81639WIMDHospitalist Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Aurora Medical Group, Inc. CurrentSince Aug 11, 2023 Accepting new patients
Aurora Medical Group, Inc. Internal Medicine Current Accepting new patients
Aurora Medical Group, Inc. CurrentSince Aug 11, 2023 Accepting new patients

Locations

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

8901 W Lincoln Ave
West Allis, WI 53227
Phone (414) 328-6000

Interoperability endpoints

  • Direct secure messaging: ahoussein379457@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 8

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": "1593820800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785110400000",
    "number": "1841817087",
    "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"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8901 W LINCOLN AVE",
            "city": "WEST ALLIS",
            "state": "WI",
            "postal_code": "532272409",
            "telephone_number": "414-328-6000",
            "fax_number": "414-649-1328"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HOUSSEIN",
        "first_name": "ABDELRAZEG",
        "middle_name": "ABUBAKER A",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-07-04",
        "last_updated": "2026-07-27",
        "certification_date": "2026-07-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "WI",
            "license": "81639",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100245313",
            "state": "WI"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "ahoussein379457@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "8901 W Lincoln Ave",
            "city": "West Allis",
            "state": "WI",
            "country_code": "US",
            "postal_code": "532272409",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "8901 W Lincoln Ave",
            "city": "West Allis",
            "state": "WI",
            "country_code": "US",
            "postal_code": "532272409",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in West Allis, WI

Sources for this page

Verify at the official NPI Registry.