Active NPI
Meg Duffield
- Hospitalist Physician
- Oshkosh, WI
National Provider Identifier
1023708385
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Hospitalist Physician
- License
- 81910
- Practice address
- 855 N Westhaven Dr
Oshkosh, WI 54904-7668 - Phone
- (920) 303-8700
- Fax
- (920) 456-7601
- NPI assigned
- May 10, 2023
- Sex
- Female
- Sole proprietor
- No
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 |
|---|---|---|---|---|
| Hospitalist Physician | 208M00000X | 81910 | WI | Primary |
| Family Medicine Physician | 207Q00000X | 81910-21 | WI |
Addresses
Primary practice location
855 N Westhaven Dr
Oshkosh, WI 54904-7668
Mailing address
PO Box 735044
Chicago, IL 60673-5044
Phone (800) 326-2250
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 100380637 | Medicaid | WI |
Electronic endpoints 3
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | mduffield372389@direct.myadvocateaurora.org | Direct | |
| CONNECT URL | https://esmd.abilitynetwork.com:8291/Gateway/DocumentSubmission/2_0/NhinService/XDRRequest_Service | Other | Ability Network |
| FHIR URL | https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/ |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Care Compare profile
Medicare Care Compare- Specialty
- Hospitalist
- Education
- At Still University of Health Sciences, College of Osteo Med, Kirksville, 2023
- Medicare assignment
- May accept Medicare assignment
Practice addresses (Care Compare)
PO Box
Chicago, IL 60673
PO Box
Suite 735044
Chicago, IL 60673-5044
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 81910-21 | WI | MD | Family Medicine Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1683676800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1788825600000",
"number": "1023708385",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 735044",
"city": "CHICAGO",
"state": "IL",
"postal_code": "606735044",
"telephone_number": "800-326-2250"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "855 N WESTHAVEN DR",
"city": "OSHKOSH",
"state": "WI",
"postal_code": "549047668",
"telephone_number": "920-303-8700",
"fax_number": "920-456-7601"
}
],
"practiceLocations": [],
"basic": {
"last_name": "DUFFIELD",
"first_name": "MEG",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2023-05-10",
"last_updated": "2026-09-08",
"certification_date": "2026-09-08",
"status": "A"
},
"taxonomies": [
{
"code": "208M00000X",
"taxonomy_group": "",
"desc": "Hospitalist",
"state": "WI",
"license": "81910",
"primary": true
},
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "WI",
"license": "81910-21",
"primary": false
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "100380637",
"state": "WI"
}
],
"endpoints": [
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "mduffield372389@direct.myadvocateaurora.org",
"affiliation": "N",
"use": "DIRECT",
"useDescription": "Direct",
"address_1": "855 N Westhaven Dr",
"city": "Oshkosh",
"state": "WI",
"country_code": "US",
"postal_code": "549047668",
"country_name": "United States",
"address_type": "DOM"
},
{
"endpointType": "CONNECT",
"endpointTypeDescription": "CONNECT URL",
"endpoint": "https://esmd.abilitynetwork.com:8291/Gateway/DocumentSubmission/2_0/NhinService/XDRRequest_Service",
"affiliation": "Y",
"endpointDescription": "2.16.840.1.113883.3.667.2",
"affiliationName": "Ability Network",
"use": "OTHER",
"useDescription": "Other",
"useOtherDescription": "CMS esMD eMDR",
"contentType": "CSV",
"contentTypeDescription": "CSV",
"address_1": "64 S Price Rd",
"city": "Brownsville",
"state": "TX",
"country_code": "US",
"postal_code": "785212459",
"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": "855 N Westhaven Dr",
"city": "Oshkosh",
"state": "WI",
"country_code": "US",
"postal_code": "549047668",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}
Other providers in Oshkosh, WI
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 8, 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.