NPI Portal NPI Lookup & Verification

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

Cynthia Marsh

Home Health Registered Nurse in Auburn, NH · enumerated 2021.

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

National Provider Identifier

1902569346

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Registry record

Entity type Individual (Type 1)
Name Cynthia Marsh
Sex Female
Practice address Auburn, NH, 03032
Enumeration date Oct 21, 2021
Last updated in NPPES Oct 21, 2021

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

Taxonomy & licenses

163WH0200X Home Health Registered Nurse Nursing Service Providers · License 208462 (MA) 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 Cynthia Marsh's NPI record?
Cross-check NPI 1902569346 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1902569346 active?
Yes, as of the latest NPPES snapshot, NPI 1902569346 is active (record last updated 2021-10-21).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-10-21.