Mark J. Schaefer, M.D.

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

31911-020 Issued in WI

Practice address

8901 W Lincoln Ave
2ND FL
West Allis, WI 53227-2409

Phone

(414) 329-4300

NPI assigned

Dec 5, 2005

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 2

Electronic endpoints 2

Medicare fee-for-service enrollment

Enrolled in WI

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Anesthesiology

Education

Medical College of Wisconsin, 1989

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)

Hospital & facility affiliations

• West Allis Memorial Hospital Hospital, West Allis, WI, CCN 520139

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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.

• Aurora Medical Group, Inc.

  • Certified Registered Nurse Anesthetist
  • Milwaukee, WI
  • NPI 1427271378
  Medicare reassignment Care Compare group NPD
• Milwaukee Anes Consultants LTD

  • Anesthesiology Physician
  • West Allis, WI
  • NPI 1902852098
  Medicare reassignment NPD
• Aurora Medical Group, Inc.

  • Durable Medical Equipment & Medical Supplies
  • Oshkosh, WI
  • NPI 1326858044
  NPD
• Aurora Medical Group, Inc.

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • Milwaukee, WI
  • NPI 1659599157
  NPD

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

• West Allis Memorial Hospital, Inc.

  dba Aurora West Allis Medical Center

  • Clinic/Center
  • West Allis, WI
  • NPI 1235345695

  Hospital

  Care Compare affiliation
• West Allis Memorial Hospital, Inc.

  dba Aurora West Allis Medical Center

  • General Acute Care Hospital
  • West Allis, WI
  • NPI 1407801640
  Care Compare affiliation

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

{
    "created_epoch": "1133740800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1748995200000",
    "number": "1629052428",
    "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": "8901 W LINCOLN AVE",
            "address_2": "2ND FL",
            "city": "WEST ALLIS",
            "state": "WI",
            "postal_code": "532272409",
            "telephone_number": "414-329-4300"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SCHAEFER",
        "first_name": "MARK",
        "middle_name": "J.",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-12-05",
        "last_updated": "2025-06-04",
        "certification_date": "2025-06-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "WI",
            "license": "31911-020",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "31915900",
            "state": "WI"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1629052428",
            "state": "WI"
        }
    ],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "8901 W Lincoln Ave",
            "address_2": "2nd Fl",
            "city": "West Allis",
            "state": "WI",
            "country_code": "US",
            "postal_code": "532272409",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mschaefer23828@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "8901 W Lincoln Ave",
            "address_2": "2nd Fl",
            "city": "West Allis",
            "state": "WI",
            "country_code": "US",
            "postal_code": "532272409",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Lauren A Scaletta, PSYD
• Richard John Schabowski, DDS
• McKinli Lynn Schacherl, PA-C
• Erica Schad, LPC-IT
• Kaycee A Schaefer, MSW,APSW
• Christina Marie Schaer, RN
• Madeline Ann Schafer, CAA
• Margaret Catherine Schauer, PA-C
• David Scheidt, O.D.
• Stephanie Schell

• Anesthesiology Physician in West Allis, WI
• Providers in West Allis, WI by specialty
• Anesthesiology Physician in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 4, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.