Active NPI
Gregory Joseph Geurts
- Certified Registered Nurse Anesthetist
- Green Bay, WI
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Certified Registered Nurse Anesthetist
- License
- 15865-33
- 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
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| 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
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
Practice addresses (Care Compare)
2845 Greenbrier Rd
Green Bay, WI 54311-6519
Phone (920) 288-8250
Hospital & facility affiliations
- Aurora Baycare Medical Ctr
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 259482-30 | WI | MD | Registered Nurse |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Baycare Clinic LLP | Current | Accepting new patients | |
| Baycare Clinic LLP | Current | Accepting new patients | |
| Baycare Aurora, LLC | Current | 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
- 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.
-
- Emergency Medicine Physician
- Green Bay, WI
- NPI 1588609648
-
- General Acute Care Hospital
- Green Bay, WI
- NPI 1255387726
-
- Durable Medical Equipment & Medical Supplies
- Manitowoc, WI
- NPI 1134490758
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Green Bay, WI
- NPI 1255387726
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.