Individual provider Active NPI

Claire Iverson

  • Clinical Social Worker
  • Cambridge, MA
National Provider Identifier
1659284594
Registry record updated Sep 23, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Social WorkerTaxonomy code 1041C0700X
License
LCSW2143768 Issued in MA
Practice address
1493 Cambridge St
Cambridge, MA 02139-1047
Phone
(617) 665-1000
NPI assigned
Sep 23, 2026
Sex
Unspecified or another gender identity
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Sep 23, 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 WorkerGroup: 193400000X SINGLE SPECIALTY GROUP 1041C0700X LCSW2143768 MA Primary

Addresses

Primary practice location

1493 Cambridge St
Cambridge, MA 02139-1047

Mailing address

108 Pearson Ave
Somerville, MA 02144-2203

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

NPI Registry JSON

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

{
    "created_epoch": "1790121600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790121600000",
    "number": "1659284594",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "108 PEARSON AVE",
            "city": "SOMERVILLE",
            "state": "MA",
            "postal_code": "021442203"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1493 CAMBRIDGE ST",
            "city": "CAMBRIDGE",
            "state": "MA",
            "postal_code": "021391047",
            "telephone_number": "617-665-1000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "IVERSON",
        "first_name": "CLAIRE",
        "sole_proprietor": "YES",
        "sex": "X",
        "enumeration_date": "2026-09-23",
        "last_updated": "2026-09-23",
        "certification_date": "2026-09-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Social Worker, Clinical",
            "state": "MA",
            "license": "LCSW2143768",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Cambridge, MA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 23, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.

Verify at the official NPI Registry.