Individual provider Active NPI

Gregory Joseph Geurts

  • Certified Registered Nurse Anesthetist
  • Green Bay, WI
National Provider Identifier
1366214595
Registry record updated Apr 21, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Certified Registered Nurse AnesthetistTaxonomy code 367500000X
License
15865-33 Issued in WI
Practice address
2845 Greenbrier Rd
Green Bay, WI 54311-6519
Phone
(877) 229-0273
Fax
(920) 288-4863
NPI assigned
Oct 23, 2023
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Apr 21, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Certified Registered Nurse Anesthetist 367500000X 15865-33 WI Primary
Registered Nurse 163W00000X 259482-30 WI

Addresses

Primary practice location

2845 Greenbrier Rd
Green Bay, WI 54311-6519

Mailing address

1035 Kepler Dr
Green Bay, WI 54311-8320
Phone (920) 490-9046

Electronic endpoints 2

TypeEndpointUseAffiliation
Direct Messaging Address ggeurts354944@direct.myadvocateaurora.org Direct
FHIR URL https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WI

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20240906000679 WI Practitioner - Certified Registered Nurse Anesthetist (Crna) 1456891373 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Certified Registered Nurse Anesthetist (Crna)
Education
Other, 2024
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)

2845 Greenbrier Rd
Green Bay, WI 54311-6519
Phone (920) 288-8250

Hospital & facility affiliations

  • Aurora Baycare Medical Ctr Hospital, Green Bay, WI, CCN 520193

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
259482-30WIMDRegistered Nurse

Practice roles

OrganizationSpecialtyStatusNew patients
Baycare Clinic LLP CurrentSince Sep 1, 2024 Accepting new patients
Baycare Clinic LLP Current Accepting new patients
Baycare Aurora, LLC CurrentSince Oct 1, 2024 Accepting new patients

Locations

2253 W Mason St
Green Bay, WI 54303
Phone (920) 327-7000

2845 Greenbrier Rd
Green Bay, WI 54311
Phone (920) 288-3388

2581 Development Dr
Green Bay, WI 54311
Phone (920) 347-0400

1035 Kepler Dr
Green Bay, WI 54311

1500 Arbor Way
Kaukauna, WI 54130
Phone (877) 229-2273

719 Doctors Ct
Oshkosh, WI 54901
Phone (920) 235-0066

Interoperability endpoints

  • Direct secure messaging: ggeurts354944@direct.myadvocateaurora.org

Organizations & group practices 3

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.

Hospital & facility affiliations 1

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

NPI Registry JSON

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

{
    "created_epoch": "1698019200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776729600000",
    "number": "1366214595",
    "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": "877-229-0273",
            "fax_number": "920-288-4863"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GEURTS",
        "first_name": "GREGORY",
        "middle_name": "JOSEPH",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2023-10-23",
        "last_updated": "2026-04-21",
        "certification_date": "2026-04-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "WI",
            "license": "15865-33",
            "primary": true
        },
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "WI",
            "license": "259482-30",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "ggeurts354944@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "2845 Greenbrier Rd",
            "city": "Green Bay",
            "state": "WI",
            "country_code": "US",
            "postal_code": "543116519",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "2845 Greenbrier Rd",
            "city": "Green Bay",
            "state": "WI",
            "country_code": "US",
            "postal_code": "543116519",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Green Bay, WI

Sources for this page

  • 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.
  • 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.