Active NPI
Samuel Kellogg, LCSW
- Clinical Social Worker
- North Chelmsford, MA
National Provider Identifier
1477028363
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Social Worker
- License
- 093682
- Practice address
- 25 Wellman Ave
North Chelmsford, MA 01863-1334 - Phone
- (978) 251-4050
- NPI assigned
- Oct 8, 2018
- 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 | 093682 | NY | Primary |
Addresses
Primary practice location
25 Wellman Ave
North Chelmsford, MA 01863-1334
Mailing address
200 Swanton St Apt 320
Winchester, MA 01890-4316
Other practice location 1
134 N 4th St
Brooklyn, NY 11249-3296
Phone (646) 450-7748
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in NY
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: No
- Power mobility devices: No
- Hospice: No
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Clinical Social Worker
- Education
- Other, 2014
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
134 N 4TH St
Brooklyn, NY 11249-3296
Phone (646) 450-7748
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 121488 | MA | MD | School Social Worker |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Valera Medical, P.C. | Clinical | Current | Accepting new patients |
| Lighthouse School, Inc. | Past | Accepting new patients |
Locations
134 N 4th St
Brooklyn, NY 11249
139 Centre St
Ste 824
New York, NY 10013
Phone (646) 450-7751
Organizations & group practices 2
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.
-
- Local Education Agency (LEA)
- North Chelmsford, MA
- NPI 1922332360
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1538956800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1780876800000",
"number": "1477028363",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "200 SWANTON ST APT 320",
"city": "WINCHESTER",
"state": "MA",
"postal_code": "018904316"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "25 WELLMAN AVE",
"city": "NORTH CHELMSFORD",
"state": "MA",
"postal_code": "018631334",
"telephone_number": "978-251-4050"
}
],
"practiceLocations": [
{
"address_1": "134 N 4th St",
"address_purpose": "LOCATION",
"city": "Brooklyn",
"state": "NY",
"postal_code": "112493296",
"country_code": "US",
"telephone_number": "646-450-7748",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "KELLOGG",
"first_name": "SAMUEL",
"credential": "LCSW",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2018-10-08",
"last_updated": "2026-06-08",
"certification_date": "2026-06-08",
"status": "A"
},
"taxonomies": [
{
"code": "1041C0700X",
"taxonomy_group": "",
"desc": "Social Worker, Clinical",
"state": "NY",
"license": "093682",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in North Chelmsford, MA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 8, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.