Active NPI
Gretchen Pfaff Thompson, LISW
- Clinical Social Worker
- Grimes, IA
National Provider Identifier
1053606251
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Social Worker
- License
- IOWA00877
- Practice address
- 904 SE Woodbine Dr
Grimes, IA 50111-1194 - Phone
- (563) 542-6595
- Fax
- (319) 369-4673
- NPI assigned
- Jun 15, 2011
- Sex
- Female
- 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 |
|---|---|---|---|---|
| Clinical Social Worker | 1041C0700X | 00877 | IA | |
| Clinical Social Worker | 1041C0700X | IOWA00877 | IA | Primary |
Addresses
Primary practice location
904 SE Woodbine Dr
Grimes, IA 50111-1194
Mailing address
904 SE Woodbine Dr
Grimes, IA 50111-1194
Phone (563) 542-6595
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 |
|---|---|---|---|
| IOWA00877 | IA | MD | Clinical Social Worker |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1308096000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1755216000000",
"number": "1053606251",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "904 SE WOODBINE DR",
"city": "GRIMES",
"state": "IA",
"postal_code": "501111194",
"telephone_number": "563-542-6595"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "904 SE WOODBINE DR",
"city": "GRIMES",
"state": "IA",
"postal_code": "501111194",
"telephone_number": "563-542-6595",
"fax_number": "319-369-4673"
}
],
"practiceLocations": [],
"basic": {
"last_name": "THOMPSON",
"first_name": "GRETCHEN",
"middle_name": "PFAFF",
"name_prefix": "Ms.",
"credential": "LISW",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2011-06-15",
"last_updated": "2025-08-15",
"status": "A"
},
"taxonomies": [
{
"code": "1041C0700X",
"taxonomy_group": "",
"desc": "Social Worker, Clinical",
"state": "IA",
"license": "00877",
"primary": false
},
{
"code": "1041C0700X",
"taxonomy_group": "",
"desc": "Social Worker, Clinical",
"state": "IA",
"license": "IOWA00877",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Grimes, IA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 15, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.