Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Grzegorz Bigaj Dn Lac Inc

Q: What is the NPI number for Grzegorz Bigaj Dn Lac Inc?

The NPI for Grzegorz Bigaj Dn Lac Inc is 1578494159, a Type 2 (organization) record in the CMS NPPES registry.

Naprapath in Northbrook, IL · enumerated 2026 · authorized official Grzegorz Bigaj, President.

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

National Provider Identifier

1578494159

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Registry record

Entity type Organization (Type 2)

Legal business name Grzegorz Bigaj Dn Lac Inc

Practice address 1500 Shermer Rd Ste 334w, Northbrook, IL, 60062

Phone (773) 879-7401

Enumeration date May 25, 2026

Last updated in NPPES May 25, 2026

Taxonomy & classification

171100000X Acupuncturist Other Service Providers Secondary

172P00000X Naprapath Other Service Providers Primary

Authorized official

Name Grzegorz Bigaj

Title President

Phone (773) 879-7401

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

Who is the authorized official for Grzegorz Bigaj Dn Lac Inc?

NPPES lists Grzegorz Bigaj (President) as the authorized official for this organization.

What is the NPI number for Grzegorz Bigaj Dn Lac Inc?

The NPI for Grzegorz Bigaj Dn Lac Inc is 1578494159, a Type 2 (organization) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-25.