Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Deirdre Heffernan

Physical Therapist in Scarsdale, NY · enumerated 2005.

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

National Provider Identifier

1437146933

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Registry record

Entity type Individual (Type 1)

Name Deirdre Heffernan

Sex Female

Practice address 83 Montgomery Ave, Scarsdale, NY, 10583

Phone (914) 472-6686

Fax (914) 472-6757

Enumeration date Sep 30, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 011634-1 (NY) Primary

Other identifiers

Identifier	Type	State	Issuer
ANC1593	Other	NY	OXFORD
2C9110	Other	NY	HEALTHNET

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 does Deirdre Heffernan practice?

The practice location on file with NPPES is in Scarsdale, NY. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Deirdre Heffernan?

The National Provider Identifier (NPI) for Deirdre Heffernan is 1437146933, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.