Michael D Mason, CRNA

Primary specialty

Certified Registered Nurse AnesthetistTaxonomy code 367500000X

License

12074-033 Issued in WI

Practice address

N112W17975 Mequon Rd
Germantown, WI 53022-2425

Phone

(262) 532-7600

NPI assigned

Aug 3, 2022

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 1

Electronic endpoints 2

Medicare fee-for-service enrollment

Enrolled in WI

Enrollment records 1

Specialty

Certified Registered Nurse Anesthetist (Crna)

Education

Other, 2022

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Racine Anesthesia Services LLCGroup PAC ID 8628103777, 81 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Ascension NE Wisconsin - St Elizabeth Campus Hospital, Appleton, WI, CCN 520009

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mmason281519@direct.myadvocateaurora.org

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.

• Racine Anesthesia Services, LLC

  • Anesthesiology Physician
  • Mount Pleasant, WI
  • NPI 1467782748

  Nurse Anesthetist, Certified Registered

  Medicare reassignment Care Compare group NPD
• Anesthesia Partners Services, S.C.

  • Anesthesiology Physician
  • Milwaukee, WI
  • NPI 1861810947
  Medicare reassignment NPD
• Aurora Medical Group, Inc.

  • Certified Registered Nurse Anesthetist
  • Milwaukee, WI
  • NPI 1427271378

  Nurse Anesthetist, Certified Registered

  Medicare reassignment NPD
• Orthopaedic Hospital of Wisconsin, LLC

  dba Orthopaedic Hospital of Wisconsin

  • General Acute Care Hospital
  • Glendale, WI
  • NPI 1669584983
  Medicare reassignment NPD
• Aurora Medical Group, Inc.

  • Durable Medical Equipment & Medical Supplies
  • Oshkosh, WI
  • NPI 1326858044
  NPD
• Laboratory Corportation of America Holdings

  • Clinical Medical Laboratory
  • Clinton, IN
  • NPI 1194140293
  NPD (past)

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

• Ascension NE Wisconsin, Inc

  • Ambulatory Surgical Clinic/Center
  • Menasha, WI
  • NPI 1124075536

  Hospital

  Care Compare affiliation
• Ascension NE Wisconsin, Inc

  dba Ascension NE Wisconsin-St Elizabeth Campus

  • General Acute Care Hospital
  • Appleton, WI
  • NPI 1407803638
  Care Compare affiliation

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

{
    "created_epoch": "1659484800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759795200000",
    "number": "1295462901",
    "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": "N112W17975 MEQUON RD",
            "city": "GERMANTOWN",
            "state": "WI",
            "postal_code": "530222425",
            "telephone_number": "262-532-7600"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "855 N Westhaven Dr",
            "address_purpose": "LOCATION",
            "city": "Oshkosh",
            "state": "WI",
            "postal_code": "549047668",
            "country_code": "US",
            "telephone_number": "920-303-8700",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MASON",
        "first_name": "MICHAEL",
        "middle_name": "D",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-08-03",
        "last_updated": "2025-10-07",
        "certification_date": "2025-10-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "WI",
            "license": "12074-033",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100210161",
            "state": "WI"
        }
    ],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "855 N Westhaven Dr",
            "city": "Oshkosh",
            "state": "WI",
            "country_code": "US",
            "postal_code": "549047668",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mmason281519@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "855 N Westhaven Dr",
            "city": "Oshkosh",
            "state": "WI",
            "country_code": "US",
            "postal_code": "549047668",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Sara J Mahalko, D.C.
• Lindsey Maier
• Jodie A Martens, MSW, LCSW
• Jessica Rae Martinez
• Douglas Marx, D.O.
• Cara Elise Mastin, LPC
• Kolver Matos, DDS
• Adrienne M. Maurer, MD
• Kara Mayerbock, APNP, FNP
• Dane W McCullough, DC

• Certified Registered Nurse Anesthetist in Germantown, WI
• Providers in Germantown, WI by specialty
• Certified Registered Nurse Anesthetist in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 7, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• 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.