Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. William Henry Long, LSW

Social Worker in Atlantic City, NJ · enumerated 2011.

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

National Provider Identifier

1316224926

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Registry record

Entity type Individual (Type 1)

Name Mr. William Henry Long

Credential LSW

Sex Male

Practice address 1401 Atlantic Ave, Suite 2300, Atlantic City, NJ, 08401

Phone (609) 572-8800

Enumeration date Nov 10, 2011

Last updated in NPPES Nov 10, 2011

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 44SL05730700 (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 specialty is William Long?

William Long is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-11-10.