Matthew Thomas Greulich, M.D.

Primary specialty

Otolaryngology PhysicianTaxonomy code 207Y00000X

License

65334-20 Issued in WI

Practice address

9200 W Wisconsin Ave
Milwaukee, WI 53226-3522

Phone

(414) 805-5580

Fax

(414) 476-4701

NPI assigned

Apr 17, 2011

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

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

Otolaryngology

Education

University of Minnesota Medical School, 2016

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Ascension Medical Group-Southeast Wisconsin IncGroup PAC ID 8628980943, 551 clinicians

Alliance ENT and Hearing Center, SCGroup PAC ID 9537240213, 2 clinicians

Froedtert Andthe Medical College of Wisconsin Community Physicians IncGroup PAC ID 3678760063, shared by 14 NPIs, 1,265 clinicians

The Medical College of Wisconsin IncGroup PAC ID 2668384371, 2,092 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Ascension SE Wisconsin Hospital Hospital, Milwaukee, WI, CCN 520136
• Ascension All Saints Hospital Hospital, Racine, WI, CCN 520096

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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.

• Alliance ENT and Hearing Center, SC

  • Otolaryngology Physician
  • Wauwatosa, WI
  • NPI 1184805848
  Medicare reassignment Care Compare group NPD
• Ascension Medical Group-Southeast Wisconsin Inc

  • Internal Medicine Physician
  • Glendale, WI
  • NPI 1609881077

  Otolaryngology

  Medicare reassignment Care Compare group NPD
• The Medical College of Wisconsin, Inc.

  • Internal Medicine Physician
  • Milwaukee, WI
  • NPI 1699720086
  Care Compare group
• Ascension All Saints Hospital, Inc

  • Rehabilitation Hospital Unit
  • Racine, WI
  • NPI 1417966540
  NPD (past)

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

• Ascension All Saints Hospital, Inc

  • General Acute Care Hospital
  • Racine, WI
  • NPI 1639123284
  Care Compare affiliation
• Ascension SE Wisconsin Hospital, Inc

  • General Acute Care Hospital
  • Milwaukee, WI
  • NPI 1427007384
  Care Compare affiliation
• Ascension SE Wisconsin Hospital, Inc

  • Rehabilitation Hospital Unit
  • Brookfield, WI
  • NPI 1861417362
  Care Compare affiliation

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

{
    "created_epoch": "1302998400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782950400000",
    "number": "1528358074",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9200 W WISCONSIN AVE",
            "city": "MILWAUKEE",
            "state": "WI",
            "postal_code": "532263522",
            "telephone_number": "414-805-5580",
            "fax_number": "414-476-4701"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9200 W WISCONSIN AVE",
            "city": "MILWAUKEE",
            "state": "WI",
            "postal_code": "532263522",
            "telephone_number": "414-805-5580",
            "fax_number": "414-476-4701"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GREULICH",
        "first_name": "MATTHEW",
        "middle_name": "THOMAS",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2011-04-17",
        "last_updated": "2026-07-02",
        "certification_date": "2026-07-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Y00000X",
            "taxonomy_group": "",
            "desc": "Otolaryngology",
            "state": "WI",
            "license": "65334-20",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1528358074",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Courtney Greseth
• Dawn Marie Gresham
• Brittany Gresl, PH.D.
• Susan K. Gresser, MSN, RN
• Lisa Ann Greuel
• Jill M Grevenow, NP
• Martini Julia Grice, REGISTERED NURSE
• Maureen Marie Grichar, R.PH.
• Nicholas Jon Grider, LPN
• Tyler Paul Griebel, M.D.

• Otolaryngology Physician in Milwaukee, WI
• Providers in Milwaukee, WI by specialty
• Otolaryngology Physician in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 2, 2026; 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.