NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Brian J. Wimmer, LCSW

Clinical Social Worker in Greendale, WI · enumerated 2012.

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

National Provider Identifier

1366793432

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Brian J. Wimmer
Credential LCSW
Sex Male
Practice address Greendale, WI, 53129
Phone (414) 840-1955
Enumeration date Sep 28, 2012
Last updated in NPPES Sep 28, 2012

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 7925-123 (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
1041C0700X 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

What is the NPI number for Brian Wimmer?
The National Provider Identifier (NPI) for Brian Wimmer is 1366793432, a Type 1 (individual) record in the CMS NPPES registry.
Where does Brian Wimmer practice?
The practice location on file with NPPES is in Greendale, WI. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-09-28.