Active NPI
C James Kasper, M.S.W.
- Clinical Social Worker
- O Fallon, MO
National Provider Identifier
1790726792
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Social Worker
- License
- SW 000401
- Practice address
- 103 Lincoln St
O Fallon, MO 63366-1603 - Phone
- (636) 978-6901
- Fax
- (636) 978-0244
- NPI assigned
- Jun 9, 2006
- 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 |
|---|---|---|---|---|
| Clinical Social Worker | 1041C0700X | SW 000401 | MO | Primary |
Addresses
Primary practice location
103 Lincoln St
O Fallon, MO 63366-1603
Mailing address
510 Pioneer Dr
St Peters, MO 63376-5003
Phone (636) 970-1940
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| SW 000401 | MO | MD | Clinical Social Worker |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1149811200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1790726792",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "510 PIONEER DR",
"city": "ST PETERS",
"state": "MO",
"postal_code": "633765003",
"telephone_number": "636-970-1940"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "103 LINCOLN ST",
"city": "O FALLON",
"state": "MO",
"postal_code": "633661603",
"telephone_number": "636-978-6901",
"fax_number": "636-978-0244"
}
],
"practiceLocations": [],
"basic": {
"last_name": "KASPER",
"first_name": "C",
"middle_name": "JAMES",
"name_prefix": "Mr.",
"credential": "M.S.W.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-06-09",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "1041C0700X",
"taxonomy_group": "",
"desc": "Social Worker, Clinical",
"state": "MO",
"license": "SW 000401",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in O Fallon, MO
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.