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

Daniel S Chojnacki

Professional Counselor in Glendale, WI · enumerated 2017 · practices at Sebastian Family Psycholgy Practice.

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

National Provider Identifier

1255864666

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Registry record

Entity type Individual (Type 1)

Name Daniel S Chojnacki

Sex Male

Practice address Glendale, WI, 53209

Phone (414) 247-0801

Fax (414) 247-0816

Enumeration date Apr 4, 2017

Last updated in NPPES Apr 4, 2017

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

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 2429 (WI) Primary

Other identifiers

Identifier	Type	State	Issuer
2429	Other	WI	LICENSE

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

What is the NPI number for Daniel Chojnacki?

The National Provider Identifier (NPI) for Daniel Chojnacki is 1255864666, a Type 1 (individual) record in the CMS NPPES registry.

Where does Daniel Chojnacki practice?

The practice location on file with NPPES is in Glendale, WI. 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 2017-04-04.