Active NPI
Leah Elsa Mansback, LMSW
- Social Worker
- Brooklyn, NY
National Provider Identifier
1336613074
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Social Worker
- License
- 103101
- Practice address
- 1375 Coney Island Ave
Brooklyn, NY 11230-4166 - Phone
- (603) 582-4245
- NPI assigned
- Jan 16, 2019
- Last updated
- Jun 23, 2025
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Social Worker | 104100000X | 103101 | NY | Primary |
Addresses
Primary practice location
1375 Coney Island Ave
Brooklyn, NY 11230-4166
Mailing address
139 Alfred Dr
Pittsfield, MA 01201-8445
Phone (603) 582-4245
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 |
|---|---|---|---|
| 103101 | NY | MD | Social Worker |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1547596800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1750636800000",
"number": "1336613074",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "139 ALFRED DR",
"city": "PITTSFIELD",
"state": "MA",
"postal_code": "012018445",
"telephone_number": "603-582-4245"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1375 CONEY ISLAND AVE",
"city": "BROOKLYN",
"state": "NY",
"postal_code": "112304166",
"telephone_number": "603-582-4245"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MANSBACK",
"first_name": "LEAH",
"middle_name": "ELSA",
"credential": "LMSW",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2019-01-16",
"last_updated": "2025-06-23",
"certification_date": "2025-06-23",
"status": "A"
},
"taxonomies": [
{
"code": "104100000X",
"taxonomy_group": "",
"desc": "Social Worker",
"state": "NY",
"license": "103101",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Brooklyn, NY
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 23, 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.