Individual provider Active NPI

Marieke Charlotte Kat, LICSW

  • Clinical Social Worker
  • Portsmouth, NH
National Provider Identifier
1033629944
Registry record updated Oct 5, 2017
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Social WorkerTaxonomy code 1041C0700X
License
1983 Issued in NH
Practice address
539 Islington St
Portsmouth, NH 03801-4471
Phone
(603) 427-6565
Fax
(603) 427-6555
NPI assigned
Oct 5, 2017
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Oct 5, 2017

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 1983 NH Primary

Addresses

Primary practice location

539 Islington St
Portsmouth, NH 03801-4471

Mailing address

539 Islington St
Portsmouth, NH 03801-4471
Phone (603) 427-6565

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

LicenseStateTypeSpecialty
1983NHMDOccupational Therapist

Practice roles

OrganizationSpecialtyStatusNew patients
Marieke Kat Counseling LLC Clinical CurrentSince Nov 9, 2025 Accepting new patients

Locations

1 Middle St
Ste 223
Portsmouth, NH 03801
Phone (603) 294-1428

Organizations & group practices 1

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.

NPI Registry JSON

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

{
    "created_epoch": "1507161600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1507161600000",
    "number": "1033629944",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "539 ISLINGTON ST",
            "city": "PORTSMOUTH",
            "state": "NH",
            "postal_code": "038014471",
            "telephone_number": "603-427-6565",
            "fax_number": "603-427-6555"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "539 ISLINGTON ST",
            "city": "PORTSMOUTH",
            "state": "NH",
            "postal_code": "038014471",
            "telephone_number": "603-427-6565",
            "fax_number": "603-427-6555"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KAT",
        "first_name": "MARIEKE",
        "middle_name": "CHARLOTTE",
        "credential": "LICSW",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2017-10-05",
        "last_updated": "2017-10-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "NH",
            "license": "1983",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Portsmouth, NH

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 5, 2017; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.