1. Home
  2. Directory
  3. Wisconsin
  4. Madison
  5. Social Worker
  6. NPI Profile

ISTHMUS PSYCHOTHERAPY
NPI 1124230230
Social Worker - Clinical in Madison, WI

Active since May 03, 2007
222 SOUTH BEDFORD STREET, MADISON, WI 53703(608) 256-6570(608) 256-4551 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Sep 11, 2025, Aug 22, 2020 (2 updates tracked since 2020).

About Isthmus Psychotherapy NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ISTHMUS PSYCHOTHERAPY (NPI 1124230230) is a healthcare organization registered as a clinical in Madison, Wisconsin and active in the NPI registry since May 2007. The organization lists Tamar Zick, Owner Director, as its authorized official.

NPPES Registry Identity

NPI1124230230
Entity TypeOrganization
Primary Taxonomy1041C0700X
Legal Business NameISTHMUS PSYCHOTHERAPY
Location Address222 SOUTH BEDFORD STREETMadison, WI 53703
Mailing Address222 South Bedford StreetMadison, WI 53703 · (608) 256-6570 · Fax (608) 256-4551
Phone(608) 256-6570
Fax(608) 256-4551
Organization SubpartNo
Authorized OfficialTamar ZickOwner Director · (608) 256-6570
Enumeration DateMay 3, 2007
Last NPPES UpdateSeptember 11, 20252 updates tracked since enumeration
✔ NPI 1124230230 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in WI · 1444
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
Also ListedCounselorTaxonomy 101Y00000X · License 1444 (WI)
Also ListedCounselor · ProfessionalTaxonomy 101YP2500X · License 1444 (WI)
Also ListedPsychologist · ClinicalTaxonomy 103TC0700X · License 1444 (WI)
222 SOUTH BEDFORD STREET, Madison, WI 53703
Open in Google Maps ↗

Other Identifiers 1

Medicaid42200800WI

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. LAURIE ANNE FROST PH.D., L.P.C.
Counselor (Professional)
222 SOUTH BEDFORD STREET, SUITE E
MADISON, WI 53703
Dane County (608) 256-6570
MS. TAMAR ZICK MA LLC
Counselor (Professional)
222 SOUTH BEDFORD STREET
MADISON, WI 53703
Dane County (608) 256-6570

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Isthmus Psychotherapy's NPI number?

The NPI number for Isthmus Psychotherapy is 1124230230. It was assigned to this organization in the NPPES registry on May 3, 2007.

Where is Isthmus Psychotherapy located?

Isthmus Psychotherapy is located at 222 South Bedford Street, Madison, WI 53703. The listed phone number is (608) 256-6570.

What is Isthmus Psychotherapy's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

When was this NPI record last updated?

The NPPES record for Isthmus Psychotherapy was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.