NPIMap

Organization Active NPI

Isthmus Psychotherapy

  • Clinical Social Worker
  • Madison, WI
National Provider Identifier
1124230230
Registry record updated Sep 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Social WorkerTaxonomy code 1041C0700X
License
1444 Issued in WI
Legal business name
ISTHMUS PSYCHOTHERAPY
Practice address
222 South Bedford Street
Madison, WI 53703
Phone
(608) 256-6570
Fax
(608) 256-4551
NPI assigned
May 3, 2007
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Sep 11, 2025

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

Authorized official

Name
Tamar Zick, MA, LLCNPI 1639391030
Title
Owner Director
Phone
(608) 256-6570

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
CounselorGroup: 193200000X MULTI-SPECIALTY GROUP 101Y00000X 1444 WI
Professional CounselorGroup: 193200000X MULTI-SPECIALTY GROUP 101YP2500X 1444 WI
Clinical PsychologistGroup: 193200000X MULTI-SPECIALTY GROUP 103TC0700X 1444 WI
Clinical Social WorkerGroup: 193200000X MULTI-SPECIALTY GROUP 1041C0700X 1444 WI Primary

Addresses

Primary practice location

222 South Bedford Street
Madison, WI 53703

Mailing address

222 South Bedford Street
Madison, WI 53703
Phone (608) 256-6570

Other identifiers 1

IdentifierTypeStateIssuer
42200800MedicaidWI

National Provider Directory

National Provider Directory

Practitioners & affiliated clinicians

Practitioners 2

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1178150400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1757548800000",
    "number": "1124230230",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "222 SOUTH BEDFORD STREET",
            "city": "MADISON",
            "state": "WI",
            "postal_code": "53703",
            "telephone_number": "608-256-6570",
            "fax_number": "608-256-4551"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "222 SOUTH BEDFORD STREET",
            "city": "MADISON",
            "state": "WI",
            "postal_code": "53703",
            "telephone_number": "608-256-6570",
            "fax_number": "608-256-4551"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "ISTHMUS PSYCHOTHERAPY",
        "organizational_subpart": "NO",
        "enumeration_date": "2007-05-03",
        "last_updated": "2025-09-11",
        "status": "A",
        "authorized_official_last_name": "ZICK",
        "authorized_official_first_name": "TAMAR",
        "authorized_official_title_or_position": "OWNER DIRECTOR",
        "authorized_official_telephone_number": "608-256-6570",
        "authorized_official_credential": "MA, LLC"
    },
    "taxonomies": [
        {
            "code": "101Y00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Counselor",
            "state": "WI",
            "license": "1444",
            "primary": false
        },
        {
            "code": "101YP2500X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Counselor, Professional",
            "state": "WI",
            "license": "1444",
            "primary": false
        },
        {
            "code": "103TC0700X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Psychologist, Clinical",
            "state": "WI",
            "license": "1444",
            "primary": false
        },
        {
            "code": "1041C0700X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Social Worker, Clinical",
            "state": "WI",
            "license": "1444",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "42200800",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Madison, WI

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; 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.