Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Diane M Gruszewski, LCSW

Clinical Social Worker in Pitman, NJ · enumerated 2007.

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

National Provider Identifier

1710181417

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Registry record

Entity type Individual (Type 1)

Name Diane M Gruszewski

Credential LCSW

Sex Female

Practice address 18 Pitman Ave, Pitman, NJ, 08071

Phone (609) 254-3096

Enumeration date Jun 14, 2007

Last updated in NPPES Mar 1, 2018

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 44SC04389700 (NJ) 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
228375000	Other	NJ	MAGELLAN

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 Diane Gruszewski practice?

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

What is the NPI number for Diane Gruszewski?

The National Provider Identifier (NPI) for Diane Gruszewski is 1710181417, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-01.