Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregory Betlej, LCSW

Professional Counselor in Oak Creek, WI · enumerated 2006.

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

National Provider Identifier

1588684807

Verified

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Registry record

Entity type Individual (Type 1)

Name Gregory Betlej

Credential LCSW

Sex Male

Practice address 6416 S Howell Ave, Oak Creek, WI, 53154

Phone (414) 762-5429

Fax (414) 762-9727

Enumeration date Jul 20, 2006

Last updated in NPPES Jan 2, 2008

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 1443-125 (WI) Primary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 2195-123 (WI) Secondary

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
39298700	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

Where does Gregory Betlej practice?

The practice location on file with NPPES is in Oak Creek, WI. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Gregory Betlej?

The National Provider Identifier (NPI) for Gregory Betlej is 1588684807, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-01-02.