NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Laurence Ganschow, CADC III

Addiction (Substance Use Disorder) Counselor in Brown Deer, WI · enumerated 2007.

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

National Provider Identifier

1588719637

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Laurence Ganschow
Credential CADC III
Sex Male
Practice address 8200 W Brown Deer Rd, Suite 300a, Brown Deer, WI, 53223
Phone (414) 362-8147
Fax (414) 362-7198
Enumeration date Jan 25, 2007
Last updated in NPPES Jul 10, 2008

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 1736-132 (WI) Primary

Other identifiers

Identifier Type State Issuer
39370500 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 1588719637 active?
Yes, as of the latest NPPES snapshot, NPI 1588719637 is active (record last updated 2008-07-10).
How do I verify Laurence Ganschow's NPI record?
Cross-check NPI 1588719637 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-07-10.