Active NPI
Cheryl S Birnbaum, LCSWR
- Clinical Social Worker
- Greenwich, CT
National Provider Identifier
1881741957
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Social Worker
- License
- R042450
- Practice address
- 85 Bedford Road
Greenwich, CT 06831 - Phone
- (914) 262-1771
- Fax
- (914) 949-6778
- NPI assigned
- Jan 4, 2007
- 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 | R042450 | NY | Primary |
Addresses
Primary practice location
85 Bedford Road
Greenwich, CT 06831
Mailing address
85 Bedford Road
Greenwich, CT 06831
Phone (914) 262-1771
Other identifiers 2
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 140042450NY01 | Other | NY | ANTHEM |
| 200655 | Other | NM | HEALTHNET |
Other names 1
- Ms. Sherry Birnbaum
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)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| R042450 | NY | MD | Clinical Social Worker |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1167868800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1785369600000",
"number": "1881741957",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "85 BEDFORD ROAD",
"city": "GREENWICH",
"state": "CT",
"postal_code": "06831",
"telephone_number": "914-262-1771",
"fax_number": "914-949-6778"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "85 BEDFORD ROAD",
"city": "GREENWICH",
"state": "CT",
"postal_code": "06831",
"telephone_number": "914-262-1771",
"fax_number": "914-949-6778"
}
],
"practiceLocations": [],
"basic": {
"last_name": "BIRNBAUM",
"first_name": "CHERYL",
"middle_name": "S",
"name_prefix": "Ms.",
"credential": "LCSWR",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2007-01-04",
"last_updated": "2026-07-30",
"certification_date": "2026-07-30",
"status": "A"
},
"taxonomies": [
{
"code": "1041C0700X",
"taxonomy_group": "",
"desc": "Social Worker, Clinical",
"state": "NY",
"license": "R042450",
"primary": true
}
],
"identifiers": [
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "ANTHEM",
"identifier": "140042450NY01",
"state": "NY"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "HEALTHNET",
"identifier": "200655",
"state": "NM"
}
],
"endpoints": [],
"other_names": [
{
"first_name": "SHERRY",
"last_name": "BIRNBAUM",
"prefix": "MS.",
"credential": "LCSWR",
"code": "2",
"type": "Professional Name"
}
]
}
Other providers in Greenwich, CT
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 30, 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.