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

Ms. Catherine Annette Regan, RN

Registered Nurse in Westbury, NY · enumerated 2007.

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

National Provider Identifier

1346440039

Verified

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Registry record

Entity type Individual (Type 1)

Name Ms. Catherine Annette Regan

Credential RN

Sex Female

Practice address Westbury, NY, 11590

Phone (516) 334-4332

Enumeration date Jul 20, 2007

Last updated in NPPES Jul 20, 2007

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

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 174367-1 (NY) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

Other identifiers

Identifier	Type	State	Issuer
01826668	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

Where does Catherine Regan practice?

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

What is the NPI number for Catherine Regan?

The National Provider Identifier (NPI) for Catherine Regan is 1346440039, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-20.