Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ethan Patrick-James Grzegorczyk

Behavior Technician in Saginaw, MI · enumerated 2021.

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

National Provider Identifier

1942890918

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Registry record

Entity type Individual (Type 1)

Name Ethan Patrick-James Grzegorczyk

Sex Male

Practice address 1625 Concentric Blvd, Saginaw, MI, 48604

Phone (989) 341-3653

Enumeration date Jan 22, 2021

Last updated in NPPES Sep 6, 2023

Taxonomy & licenses

106S00000X Behavior Technician Behavioral Health & Social Service Providers 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

What is the NPI number for Ethan Grzegorczyk?

The National Provider Identifier (NPI) for Ethan Grzegorczyk is 1942890918, a Type 1 (individual) record in the CMS NPPES registry.

Where does Ethan Grzegorczyk practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-09-06.