Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Katherine Tamayo

Registered Nurse in Methuen, MA · enumerated 2020.

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

National Provider Identifier

1891302253

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Registry record

Entity type Individual (Type 1)

Name Katherine Tamayo

Sex Female

Practice address 1 Griffin Brook Dr, Methuen, MA, 01844

Phone (978) 689-6634

Enumeration date Sep 29, 2020

Last updated in NPPES Sep 29, 2020

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License RN2278063 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1891302253 active?

Yes, as of the latest NPPES snapshot, NPI 1891302253 is active (record last updated 2020-09-29).

How do I verify Katherine Tamayo's NPI record?

Cross-check NPI 1891302253 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-09-29.