Active NPI
Olivia Grabar Sage, LCSW
- Social Worker
- Brooklyn, NY
National Provider Identifier
1609538131
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Social Worker
- License
- 118226-01
- Practice address
- 705 Manhattan Avenue
Brooklyn, NY 11222 - Phone
- (347) 474-8464
- NPI assigned
- Oct 12, 2021
- 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 |
|---|---|---|---|---|
| Social Worker | 104100000X | 118226-01 | NY | Primary |
Addresses
Primary practice location
705 Manhattan Avenue
Brooklyn, NY 11222
Mailing address
705 Manhattan Avenue
Brooklyn, NY 11222
Phone (347) 474-8464
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 |
|---|---|---|---|
| 118226-01 | NY | MD | Social Worker |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Brooklyn Psychotherapy, LCSW, PC | Past | Accepting new patients |
Organizations & group practices 1
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Clinical Social Worker
- Brooklyn, NY
- NPI 1356746515
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1633996800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1789171200000",
"number": "1609538131",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "705 MANHATTAN AVENUE",
"city": "BROOKLYN",
"state": "NY",
"postal_code": "11222",
"telephone_number": "347-474-8464"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "705 MANHATTAN AVENUE",
"city": "BROOKLYN",
"state": "NY",
"postal_code": "11222",
"telephone_number": "347-474-8464"
}
],
"practiceLocations": [],
"basic": {
"last_name": "GRABAR SAGE",
"first_name": "OLIVIA",
"credential": "LCSW",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2021-10-12",
"last_updated": "2026-09-12",
"certification_date": "2026-09-12",
"status": "A"
},
"taxonomies": [
{
"code": "104100000X",
"taxonomy_group": "",
"desc": "Social Worker",
"state": "NY",
"license": "118226-01",
"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 Sep 12, 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.