Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Crystal Zelman LLC

Clinical Social Worker in Denville, NJ · enumerated 2014 · authorized official Crystal Zelman, Licensed Clinical Social Worker.

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

National Provider Identifier

1619385176

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Registry record

Entity type Organization (Type 2)

Legal business name Crystal Zelman LLC

Practice address 76 Broadway, Suite 200h, Denville, NJ, 07834

Phone (862) 242-0559

Enumeration date Jul 29, 2014

Last updated in NPPES Jul 29, 2014

Taxonomy & classification

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 44SC05462600 (NJ) Primary

Authorized official

Name Crystal Zelman

Title Licensed Clinical Social Worker

Phone (862) 242-0559

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 is Crystal Zelman LLC located?

The practice location on file with NPPES is in Denville, NJ.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2014-07-29. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-07-29.