Active NPI
Mariah Postupack
- Clinical Social Worker
- Millersville, MD
National Provider Identifier
1477235992
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Social Worker
- Practice address
- 1111 Benfield Blvd Ste 200
Millersville, MD 21108-3004 - Phone
- (667) 600-2494
- NPI assigned
- Aug 3, 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Clinical Social Worker | 1041C0700X | Primary |
Addresses
Primary practice location
1111 Benfield Blvd Ste 200
Millersville, MD 21108-3004
Mailing address
1818 New York Ave NE Ste 115
Washington, DC 20002-1851
Phone (202) 269-2401
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
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1691020800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1763510400000",
"number": "1477235992",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1818 NEW YORK AVE NE STE 115",
"city": "WASHINGTON",
"state": "DC",
"postal_code": "200021851",
"telephone_number": "202-269-2401"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1111 BENFIELD BLVD STE 200",
"city": "MILLERSVILLE",
"state": "MD",
"postal_code": "211083004",
"telephone_number": "667-600-2494"
}
],
"practiceLocations": [],
"basic": {
"last_name": "POSTUPACK",
"first_name": "MARIAH",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2023-08-03",
"last_updated": "2025-11-19",
"certification_date": "2025-11-19",
"status": "A"
},
"taxonomies": [
{
"code": "1041C0700X",
"taxonomy_group": "",
"desc": "Social Worker, Clinical",
"state": null,
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Millersville, MD
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 19, 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.