Individual provider Active NPI

Spencer Billings Nineberg, MSW LICSW

  • Clinical Social Worker
  • Cambridge, MA
National Provider Identifier
1639160443
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Social WorkerTaxonomy code 1041C0700X
License
1002254 Issued in MA
Practice address
307 Concord Ave
Cambridge, MA 02138-1207
Phone
(617) 497-4510
NPI assigned
Nov 1, 2005
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Social Worker 1041C0700X 1002254 MA Primary

Addresses

Primary practice location

307 Concord Ave
Cambridge, MA 02138-1207

Mailing address

307 Concord Ave
Cambridge, MA 02138-1207
Phone (617) 497-4510

Other identifiers 2

IdentifierTypeStateIssuer
P02380OtherMABLUE CROSS BLUE SHIELD
102254OtherMAPACIFICAN INSURANCE

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: No
  • Power mobility devices: No
  • Hospice: No
Green means eligible to order or refer.
Opted out of Medicare
Yes, effective Jun 21, 2017 through Jun 21, 2027

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
1002254MAMDClinical Social Worker

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1130803200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1639160443",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "307 CONCORD AVE",
            "city": "CAMBRIDGE",
            "state": "MA",
            "postal_code": "021381207",
            "telephone_number": "617-497-4510"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "307 CONCORD AVE",
            "city": "CAMBRIDGE",
            "state": "MA",
            "postal_code": "021381207",
            "telephone_number": "617-497-4510"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NINEBERG",
        "first_name": "SPENCER",
        "middle_name": "BILLINGS",
        "name_prefix": "Mrs.",
        "credential": "MSW LICSW",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-11-01",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "MA",
            "license": "1002254",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BLUE CROSS BLUE SHIELD",
            "identifier": "P02380",
            "state": "MA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "PACIFICAN INSURANCE",
            "identifier": "102254",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Cambridge, MA

Sources for this page

Verify at the official NPI Registry.