Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Clifford Darnell Long Jr., LSW

Clinical Social Worker in Marlton, NJ · enumerated 2025.

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

National Provider Identifier

1902793342

Verified

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Registry record

Entity type Individual (Type 1)

Name Mr. Clifford Darnell Long Jr.

Credential LSW

Sex Male

Practice address 39 E Main St Ste 302, Marlton, NJ, 08053

Phone (856) 409-0610

Enumeration date Jun 19, 2025

Last updated in NPPES Jun 19, 2025

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 44SL07170800 (NJ) 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

What is the NPI number for Clifford Long?

The National Provider Identifier (NPI) for Clifford Long is 1902793342, a Type 1 (individual) record in the CMS NPPES registry.

Where does Clifford Long practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-06-19.