Active NPI
Samantha J Schaefer, LCSW, CSAC
- Clinical Social Worker
- Fond Du Lac, WI
National Provider Identifier
1164077178
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Social Worker
- License
- 10174-123
- Practice address
- N6119 Schraven Cir
Fond Du Lac, WI 54937-9470 - Phone
- (920) 238-3487
- NPI assigned
- Aug 6, 2019
- 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 4
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Addiction (Substance Use Disorder) Counselor | 101YA0400X | 16658-132 | WI | |
| Clinical Social Worker | 1041C0700X | 10174-123 | WI | Primary |
| Social Worker | 104100000X | 131353 | WI | |
| Addiction (Substance Use Disorder) Counselor | 101YA0400X | 18368 | WI |
Addresses
Primary practice location
N6119 Schraven Cir
Fond Du Lac, WI 54937-9470
Mailing address
N6119 Schraven Cir
Fond Du Lac, WI 54937-9470
Phone (920) 238-3487
Other names 1
- Samantha Kosterman
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: No
- Medical equipment: Yes
- Home health: No
- Power mobility devices: No
- Hospice: No
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 131353 | WI | MD | Social Worker |
| 10174-123 | WI | MD | Clinical Social Worker |
| 18368 | WI | MD | Pharmacist |
Interoperability endpoints
- sschaefer342060@direct-ehr-ssmhc.com
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1565049600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1787097600000",
"number": "1164077178",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "N6119 SCHRAVEN CIR",
"city": "FOND DU LAC",
"state": "WI",
"postal_code": "549379470",
"telephone_number": "920-238-3487"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "N6119 SCHRAVEN CIR",
"city": "FOND DU LAC",
"state": "WI",
"postal_code": "549379470",
"telephone_number": "920-238-3487"
}
],
"practiceLocations": [],
"basic": {
"last_name": "SCHAEFER",
"first_name": "SAMANTHA",
"middle_name": "J",
"credential": "LCSW, CSAC",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2019-08-06",
"last_updated": "2026-08-19",
"certification_date": "2026-08-19",
"status": "A"
},
"taxonomies": [
{
"code": "101YA0400X",
"taxonomy_group": "",
"desc": "Counselor, Addiction (Substance Use Disorder)",
"state": "WI",
"license": "16658-132",
"primary": false
},
{
"code": "1041C0700X",
"taxonomy_group": "",
"desc": "Social Worker, Clinical",
"state": "WI",
"license": "10174-123",
"primary": true
},
{
"code": "104100000X",
"taxonomy_group": "",
"desc": "Social Worker",
"state": "WI",
"license": "131353",
"primary": false
},
{
"code": "101YA0400X",
"taxonomy_group": "",
"desc": "Counselor, Addiction (Substance Use Disorder)",
"state": "WI",
"license": "18368",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": [
{
"first_name": "SAMANTHA",
"last_name": "KOSTERMAN",
"credential": "APSW, SAC-IT",
"code": "1",
"type": "Former Name"
}
]
}Other providers in Fond Du Lac, WI
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 19, 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.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.