Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Elwyn New Jersey

Intellectual and/or Developmental Disabilities Community Based Residential Treatment Facility in Williamstown, NJ · enumerated 2019 · authorized official William Hartley, Executive Director.

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

National Provider Identifier

1689236200

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Elwyn New Jersey

Parent organization Elwyn New Jersey

Practice address 3239 Glassboro Cross Keys Rd, Williamstown, NJ, 08094

Phone (856) 794-5300

Enumeration date Jul 3, 2019

Last updated in NPPES Aug 12, 2022

Taxonomy & classification

320900000X Intellectual and/or Developmental Disabilities Community Based Residential Treatment Facility Residential Treatment Facilities Primary

Authorized official

Name William Hartley

Title Executive Director

Phone (856) 794-5300

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 Elwyn New Jersey located?

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2022-08-12. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-08-12.