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

Mr. Guerino Tondreau, RN

Registered Nurse in Chestnut Ridge, NY · enumerated 2012.

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

National Provider Identifier

1487911699

Verified

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Registry record

Entity type Individual (Type 1)

Name Mr. Guerino Tondreau

Credential RN

Sex Male

Practice address Chestnut Ridge, NY, 10977

Phone (845) 620-7530

Enumeration date Apr 13, 2012

Last updated in NPPES Apr 13, 2012

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

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 580369-1 (NY) Primary

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

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 Guerino Tondreau practice?

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

What is the NPI number for Guerino Tondreau?

The National Provider Identifier (NPI) for Guerino Tondreau is 1487911699, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-04-13.