Courtney E Greseth

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

5240 Issued in WI

Practice address

9200 W Wisconsin Ave
Milwaukee, WI 53226-3522

Phone

(414) 955-0350

Fax

(414) 805-6851

NPI assigned

Feb 22, 2019

Last updated

Sep 24, 2026By the provider in NPPES

Sex

Female

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: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Physician Assistant

Education

Other, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

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

Practice addresses (Care Compare)

Hospital & facility affiliations

• Froedtert Memorial Lutheran Hospital Hospital, Milwaukee, WI, CCN 520177

Merit-based Incentive Payment System (MIPS)

Final score

87.99 of 100Reported as group

Quality

82.81

Promoting interoperability

100

Improvement activities

40

Cost

77.15

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Interoperability endpoints

• Direct secure messaging: cstrom408340@direct.froedtert.com

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.

• The Medical College of Wisconsin, Inc.

  • Internal Medicine Physician
  • Milwaukee, WI
  • NPI 1699720086
  Medicare reassignment Care Compare group

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

• Froedtert Memorial Lutheran Hospital, Inc.

  dba CDI-Froedtert Memorial Lutheran Hospital

  • General Acute Care Hospital
  • Milwaukee, WI
  • NPI 1255334173
  Care Compare affiliation

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

{
    "created_epoch": "1550793600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790208000000",
    "number": "1598222861",
    "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": "414-955-0350",
            "fax_number": "414-805-6851"
        },
        {
            "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": "414-955-0350",
            "fax_number": "414-805-6851"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "100 County Road B",
            "address_purpose": "LOCATION",
            "city": "Shawano",
            "state": "WI",
            "postal_code": "541667072",
            "country_code": "US",
            "telephone_number": "715-524-2161",
            "fax_number": "715-916-3029",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "776 23rd St N",
            "address_purpose": "LOCATION",
            "city": "LA Crosse",
            "state": "WI",
            "postal_code": "546013826",
            "country_code": "US",
            "telephone_number": "920-360-9998",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GRESETH",
        "first_name": "COURTNEY",
        "middle_name": "E",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-02-22",
        "last_updated": "2026-09-24",
        "certification_date": "2026-09-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "WI",
            "license": "5240",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1598222861",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Monica L Gremillion, PHD
• Kendra A Grenada, MS, SAC-IT
• Julie M. Grenzer, MSN, CNM
• Sara Beth Gresbach, OTRL
• Robert Gresen, PH.D.
• Dawn Marie Gresham
• Brittany Gresl, PH.D.
• Susan K. Gresser, MSN, RN
• Lisa Ann Greuel
• Matthew Thomas Greulich, M.D.

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

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 24, 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.