Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mrs. Deirdre Marie Casey, MA CCCSLP

Speech-Language Pathologist in Rockville Centre, NY · enumerated 2010.

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

National Provider Identifier

1659687325

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Registry record

Entity type Individual (Type 1)

Name Mrs. Deirdre Marie Casey

Credential MA CCCSLP

Sex Female

Practice address Rockville Centre, NY, 11570

Phone (516) 318-0338

Fax (516) 216-4465

Enumeration date Aug 19, 2010

Last updated in NPPES Aug 19, 2010

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 010808 (NY) 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

Is NPI 1659687325 active?

Yes, as of the latest NPPES snapshot, NPI 1659687325 is active (record last updated 2010-08-19).

How do I verify Deirdre Casey's NPI record?

Cross-check NPI 1659687325 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-08-19.