Active NPI
David Yellen
- Clinical Social Worker
- Brooklyn, NY
National Provider Identifier
1144199001
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Social Worker
- License
- 101288
- Practice address
- 99 Bergen St Apt 3R
Brooklyn, NY 11201-6328 - Phone
- (917) 523-7780
- NPI assigned
- Oct 30, 2025
- Sex
- Male
- 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 |
|---|---|---|---|---|
| Clinical Social Worker | 1041C0700X | 101288 | NY | Primary |
Addresses
Primary practice location
99 Bergen St Apt 3R
Brooklyn, NY 11201-6328
Mailing address
99 Bergen St Apt 3R
Brooklyn, NY 11201-6328
Phone (917) 523-7780
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 |
|---|---|---|---|
| 101288 | NY | MD | Clinical Social Worker |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1761782400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1761782400000",
"number": "1144199001",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "99 BERGEN ST APT 3R",
"city": "BROOKLYN",
"state": "NY",
"postal_code": "112016328",
"telephone_number": "917-523-7780"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "99 BERGEN ST APT 3R",
"city": "BROOKLYN",
"state": "NY",
"postal_code": "112016328",
"telephone_number": "917-523-7780"
}
],
"practiceLocations": [],
"basic": {
"last_name": "YELLEN",
"first_name": "DAVID",
"name_prefix": "Mr.",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2025-10-30",
"last_updated": "2025-10-30",
"certification_date": "2025-10-30",
"status": "A"
},
"taxonomies": [
{
"code": "1041C0700X",
"taxonomy_group": "",
"desc": "Social Worker, Clinical",
"state": "NY",
"license": "101288",
"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 Oct 30, 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.