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

Frank Gerlach Jr., LSW

Social Worker in Catasauqua, PA · enumerated 2023.

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

National Provider Identifier

1508569435

Verified

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Registry record

Entity type Individual (Type 1)

Name Frank Gerlach Jr.

Credential LSW

Sex Male

Practice address Catasauqua, PA, 18032

Phone (610) 762-4436

Enumeration date Mar 22, 2023

Last updated in NPPES Mar 22, 2023

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

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License SW130774 (PA) Primary

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 Frank Gerlach practice?

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

What is the NPI number for Frank Gerlach?

The National Provider Identifier (NPI) for Frank Gerlach is 1508569435, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-22.