Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Arc of Hunterdon County

Q: What is the NPI number for Arc of Hunterdon County?

The NPI for Arc of Hunterdon County is 1225660780, a Type 2 (organization) record in the CMS NPPES registry.

Developmentally Disabled Services Day Training Agency in Annandale, NJ · enumerated 2020 · authorized official Linda Dialfonso, Executive Assistant.

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

National Provider Identifier

1225660780

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Registry record

Entity type Organization (Type 2)

Legal business name Arc of Hunterdon County

Practice address 1465 State Route 31 S Ste 23, Annandale, NJ, 08801

Phone (908) 730-7827

Enumeration date Feb 12, 2020

Last updated in NPPES Feb 12, 2020

Taxonomy & classification

251C00000X Developmentally Disabled Services Day Training Agency Agencies Primary

Authorized official

Name Linda Dialfonso

Title Executive Assistant

Phone (908) 730-7827

Other identifiers

Identifier	Type	State	Issuer
0478059	Medicaid	NJ	-

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 Arc of Hunterdon County?

The NPI for Arc of Hunterdon County is 1225660780, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Arc of Hunterdon County?

NPPES lists Linda Dialfonso (Executive Assistant) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-02-12.