Active NPI
John Kellner, PA-C
- Physician Assistant
- Oconto Falls, WI
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Physician Assistant
- License
- 4268-23
- Practice address
- 855 S Main St
Oconto Falls, WI 54154-1241 - Phone
- (920) 496-4700
- NPI assigned
- Dec 15, 2017
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Physician Assistant | 363A00000X | 4268-23 | WI | Primary |
Addresses
Primary practice location
855 S Main St
Oconto Falls, WI 54154-1241
Mailing address
PO Box 19070
Green Bay, WI 54307-9070
Phone (920) 496-4700
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 100073938 | Medicaid | WI |
Electronic endpoints 1
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | jkellner171253@ewd.direct.hshs.org | Direct |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MI, WI
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: No
Enrollment records 2
Care Compare profile
Medicare Care Compare- Specialty
- Physician Assistant
- Education
- Central Michigan College of Medicine, 2017
- 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
835 S Main St
Oconto Falls, WI 54154-1282
855 S Main St
Oconto Falls, WI 54154-1241
Phone (920) 846-8187
Hospital & facility affiliations
- HSHS St Clare Memorial Hospital
- Aurora Baycare Medical Ctr
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Physician Assistant
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 4268-23 | WI | MD | Physician Assistant |
Practice roles
Locations
3401 Ludington St
Escanaba, MI 49829
Phone (906) 786-3311
1634 Gull Rd
Kalamazoo, MI 49048
Phone (269) 903-2835
1035 Kepler Dr
Green Bay, WI 54311
2581 Development Dr
Green Bay, WI 54311
Phone (920) 347-0400
835 S Van Buren St
Green Bay, WI 54301
Phone (888) 901-7246
1110 Kepler Dr
Green Bay, WI 54311
Phone (920) 288-4712
3003 University Dr
Marinette, WI 54143
Phone (715) 735-4200
820 Arbutus Ave
Oconto, WI 54153
Phone (920) 835-1100
855 S Main St
Ste 1
Oconto Falls, WI 54154
Phone (920) 846-8187
855 S Main St
Oconto Falls, WI 54154
Phone (920) 846-3444
719 Doctors Ct
Oshkosh, WI 54901
Phone (920) 235-0066
100 Cty Road B
Shawano, WI 54166
Phone (715) 524-2161
3100 Superior Ave
Sheboygan, WI 53081
Phone (800) 472-6710
800 Riverside Dr
Waupaca, WI 54981
Phone (715) 258-1000
Interoperability endpoints
- jkellner957358@direct.froedtert.com
- jkellner320014@direct.thedacare.org
Organizations & group practices 19
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
-
- Critical Access Hospital
- Oconto Falls, WI
- NPI 1851477913
-
- General Practice Physician
- Green Bay, WI
- NPI 1285613638
-
- Internal Medicine Physician
- Sheboygan, WI
- NPI 1275799413
-
- Critical Access Hospital
- Shawano, WI
- NPI 1548260839
-
- Emergency Medicine Physician
- Waupaca, WI
- NPI 1780782680
Physician Assistant
-
- Urgent Care Clinic/Center
- Huber Heights, OH
- NPI 1790030385
MI
-
- Critical Access Hospital
- Oconto, WI
- NPI 1356373302
-
- Emergency Medicine Physician
- Escanaba, MI
- NPI 1417972183
-
- Rural Health Clinic/Center
- Suring, WI
- NPI 1104418037
-
- Rural Health Clinic/Center
- Oconto Falls, WI
- NPI 1063038313
-
- Anatomic Pathology & Clinical Pathology Physician
- Waupaca, WI
- NPI 1861434631
Hospital & facility affiliations 5
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Green Bay, WI
- NPI 1255387726
-
- Medicare Defined Swing Bed Hospital Unit
- Oconto Falls, WI
- NPI 1326349135
-
- Critical Access Hospital
- Oconto Falls, WI
- NPI 1851477913
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1513296000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1770249600000",
"number": "1275049033",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 19070",
"city": "GREEN BAY",
"state": "WI",
"postal_code": "543079070",
"telephone_number": "920-496-4700"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "855 S MAIN ST",
"city": "OCONTO FALLS",
"state": "WI",
"postal_code": "541541241",
"telephone_number": "920-496-4700"
}
],
"practiceLocations": [],
"basic": {
"last_name": "KELLNER",
"first_name": "JOHN",
"credential": "PA-C",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2017-12-15",
"last_updated": "2026-02-05",
"certification_date": "2026-02-05",
"status": "A"
},
"taxonomies": [
{
"code": "363A00000X",
"taxonomy_group": "",
"desc": "Physician Assistant",
"state": "WI",
"license": "4268-23",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "100073938",
"state": "WI"
}
],
"endpoints": [
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "jkellner171253@ewd.direct.hshs.org",
"affiliation": "N",
"use": "DIRECT",
"useDescription": "Direct",
"contentType": "OTHER",
"contentTypeDescription": "Other",
"contentOtherDescription": "CDA/CCD/TXT",
"address_1": "855 S Main St",
"city": "Oconto Falls",
"state": "WI",
"country_code": "US",
"postal_code": "541541241",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}
Other providers in Oconto Falls, WI
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 5, 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.