Matthew W Gaffney, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

4981 Issued in WI

Practice address

2845 Greenbrier Rd
Green Bay, WI 54311-6519

Phone

(920) 288-4060

Fax

(920) 288-4067

NPI assigned

Mar 11, 2019

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Electronic endpoints 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, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Baycare Clinic LLPGroup PAC ID 4385554328, 197 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Aurora Baycare Medical Ctr Hospital, Green Bay, WI, CCN 520193
• Aurora Medical Ctr Manitowoc County Hospital, Two Rivers, WI, CCN 520034

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

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.

• Baycare Clinic LLP

  • Emergency Medicine Physician
  • Green Bay, WI
  • NPI 1588609648
  Medicare reassignment Care Compare group NPD
• Aurora Health Care North, Inc.

  • General Acute Care Hospital
  • Two Rivers, WI
  • NPI 1477508687
  Medicare reassignment
• Aurora Medical Center of Oshkosh, Inc

  • General Acute Care Hospital
  • Oshkosh, WI
  • NPI 1275578064
  Medicare reassignment
• Baycare Aurora, LLC

  • General Acute Care Hospital
  • Green Bay, WI
  • NPI 1255387726
  Medicare reassignment

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

• Aurora Health Care North, Inc.

  • General Acute Care Hospital
  • Two Rivers, WI
  • NPI 1477508687
  Care Compare affiliation
• Baycare Aurora, LLC

  • General Acute Care Hospital
  • Green Bay, WI
  • NPI 1255387726
  Care Compare affiliation

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

{
    "created_epoch": "1552262400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776729600000",
    "number": "1528526340",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1035 KEPLER DR",
            "city": "GREEN BAY",
            "state": "WI",
            "postal_code": "543118320",
            "telephone_number": "920-490-9046",
            "fax_number": "920-405-8005"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2845 GREENBRIER RD",
            "city": "GREEN BAY",
            "state": "WI",
            "postal_code": "543116519",
            "telephone_number": "920-288-4060",
            "fax_number": "920-288-4067"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "5300 Memorial Dr",
            "address_purpose": "LOCATION",
            "city": "Two Rivers",
            "state": "WI",
            "postal_code": "542413923",
            "country_code": "US",
            "telephone_number": "920-794-5125",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GAFFNEY",
        "first_name": "MATTHEW",
        "middle_name": "W",
        "credential": "PA-C",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2019-03-11",
        "last_updated": "2026-04-21",
        "certification_date": "2026-04-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "WI",
            "license": "4981",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mgaffney261985@direct.myadvocateaurora.org",
            "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"
        }
    ],
    "other_names": []
}

• Tracey L Fuller
• Mary B Fuss, CRNA
• G.D. Pionek,D.D.S.,S.C.
• Alessandra M Gadsby, MD
• Emily Gadzichowski, PHARMD
• Randy Joseph Gage, PH. D.
• Katie Jean Gajeski, M.S. CCC-SLP
• Simil S. Gala, M.D.
• Vaishali S Gala, MD
• Bryce Gallagher, DC

• Physician Assistant in Green Bay, WI
• Providers in Green Bay, WI by specialty
• Physician Assistant in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 21, 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.