NPI Portal NPI Lookup & Verification

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

Grzegorz Choinkowski

Counselor in Augusta, ME · enumerated 2016.

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

National Provider Identifier

1851743223

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Registry record

Entity type Individual (Type 1)
Name Grzegorz Choinkowski
Sex Male
Practice address Augusta, ME, 04330
Enumeration date Jul 8, 2016
Last updated in NPPES Oct 25, 2016

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

Taxonomy & licenses

101Y00000X Counselor 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

Is NPI 1851743223 active?
Yes, as of the latest NPPES snapshot, NPI 1851743223 is active (record last updated 2016-10-25).
How do I verify Grzegorz Choinkowski's NPI record?
Cross-check NPI 1851743223 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 2016-10-25.