Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Dhac, Inc

Q: What type of organization is Dhac, Inc?

Dhac, Inc is registered in NPPES as a Hearing Instrument Specialist (its primary provider taxonomy).

Hearing Instrument Specialist in Central Islip, NY · enumerated 2007 · authorized official Allan Rosenbaum, President.

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

National Provider Identifier

1174643571

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name Dhac, Inc

Other name <Unavail>

Practice address 320 Carleton Ave, Suite 3900, Central Islip, NY, 11722

Phone (631) 348-0050

Fax (631) 348-0105

Enumeration date Mar 30, 2007

Last updated in NPPES Jul 20, 2010

Taxonomy & classification

237700000X Hearing Instrument Specialist Speech, Language and Hearing Service Providers · License 15000009675 (NY) Primary

Authorized official

Name Allan Rosenbaum

Title President

Phone (631) 348-0050

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 type of organization is Dhac, Inc?

Dhac, Inc is registered in NPPES as a Hearing Instrument Specialist (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-07-20.