Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Thomas John Zakrzewski, LCSW

Clinical Social Worker in Manitowoc, WI · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1194874511

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Registry record

Entity type Individual (Type 1)

Name Thomas John Zakrzewski

Credential LCSW

Sex Male

Practice address Manitowoc County Human Services Department, 926 S 8th Street, Manitowoc, WI, 54221

Phone (920) 683-4230

Fax (920) 720-3806

Enumeration date Jan 9, 2007

Last updated in NPPES Oct 15, 2020

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 149.011635 (IL) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 7452 (WI) Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

Other identifiers

Identifier	Type	State	Issuer
04932561	Other	IL	BCBS PPO

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1194874511 active?

Yes, as of the latest NPPES snapshot, NPI 1194874511 is active (record last updated 2020-10-15).

How do I verify Thomas Zakrzewski's NPI record?

Cross-check NPI 1194874511 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-15.