NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Half Hollow Hills Csd

Local Education Agency (LEA) in Dix Hills, NY · enumerated 2007 · authorized official Anne Marie Marrone Caliendo, Asst. Supt. Finance & Facilities.

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

National Provider Identifier

1407982465

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Half Hollow Hills Csd
Practice address 525 Half Hollow Rd, Dix Hills, NY, 11746
Fax (631) 592-3930
Enumeration date Feb 26, 2007
Last updated in NPPES Mar 20, 2015

Taxonomy & classification

251300000X Local Education Agency (LEA) Agencies Primary

Authorized official

Name Anne Marie Marrone Caliendo
Title Asst. Supt. Finance & Facilities

Other identifiers

Identifier Type State Issuer
01377215 Medicaid NY -

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

Who is the authorized official for Half Hollow Hills Csd?
NPPES lists Anne Marie Marrone Caliendo (Asst. Supt. Finance & Facilities) as the authorized official for this organization.
What is the NPI number for Half Hollow Hills Csd?
The NPI for Half Hollow Hills Csd is 1407982465, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-03-20.