Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Glenn Zipperer, LCSW CADC III

Addiction (Substance Use Disorder) Counselor in Port Washington, WI · enumerated 2005.

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

National Provider Identifier

1548251655

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Registry record

Entity type Individual (Type 1)

Name Glenn Zipperer

Credential LCSW CADC III

Sex Male

Practice address 121 W Main St, Ste 350, Port Washington, WI, 53074

Phone (262) 284-8130

Fax (262) 284-8130

Enumeration date Oct 31, 2005

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 1105 (WI) Primary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 2320123 (WI) Secondary

Other identifiers

Identifier	Type	State	Issuer
39333800	Medicaid	WI	-

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 1548251655 active?

Yes, as of the latest NPPES snapshot, NPI 1548251655 is active (record last updated 2025-09-11).

How do I verify Glenn Zipperer's NPI record?

Cross-check NPI 1548251655 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.