Active NPI
Whitney Marie Irmen, LSW
- Social Worker
- Mandan, ND
National Provider Identifier
1811711161
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Social Worker
- License
- 5751
- Practice address
- 210 2ND Ave NW
Mandan, ND 58554-3124 - Phone
- (701) 667-3383
- Fax
- (701) 667-3384
- NPI assigned
- Nov 13, 2024
- 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 |
|---|---|---|---|---|
| Social Worker | 104100000X | 5751 | ND | Primary |
| Non-emergency Medical Transport (VAN) | 343900000X |
Addresses
Primary practice location
210 2ND Ave NW
Mandan, ND 58554-3124
Mailing address
210 2ND Ave NW
Mandan, ND 58554-3124
Phone (701) 667-3383
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)
- Not enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 5751 | ND | MD | Social Worker |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1731456000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1784592000000",
"number": "1811711161",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "210 2ND AVE NW",
"city": "MANDAN",
"state": "ND",
"postal_code": "585543124",
"telephone_number": "701-667-3383",
"fax_number": "701-667-3384"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "210 2ND AVE NW",
"city": "MANDAN",
"state": "ND",
"postal_code": "585543124",
"telephone_number": "701-667-3383",
"fax_number": "701-667-3384"
}
],
"practiceLocations": [],
"basic": {
"last_name": "IRMEN",
"first_name": "WHITNEY",
"middle_name": "MARIE",
"credential": "LSW",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2024-11-13",
"last_updated": "2026-07-21",
"certification_date": "2026-07-21",
"status": "A"
},
"taxonomies": [
{
"code": "104100000X",
"taxonomy_group": "",
"desc": "Social Worker",
"state": "ND",
"license": "5751",
"primary": true
},
{
"code": "343900000X",
"taxonomy_group": "",
"desc": "Non-emergency Medical Transport (VAN)",
"state": null,
"license": null,
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Mandan, ND
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 21, 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.