NPI Portal NPI Lookup & Verification

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

Ms. Estelle A Marin, R.P.N.

Registered Nurse in Mount Vernon, NY · enumerated 2008.

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

National Provider Identifier

1144476730

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Registry record

Entity type Individual (Type 1)
Name Ms. Estelle A Marin
Credential R.P.N.
Sex Female
Practice address Mount Vernon, NY, 10550
Enumeration date Aug 14, 2008
Last updated in NPPES Aug 19, 2008

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

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 448318 (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.

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Frequently asked questions

How do I verify Estelle Marin's NPI record?
Cross-check NPI 1144476730 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1144476730 active?
Yes, as of the latest NPPES snapshot, NPI 1144476730 is active (record last updated 2008-08-19).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-08-19.