Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Christensen & Sons, LLC

Q: What is the NPI number for Christensen & Sons, LLC?

The NPI for Christensen & Sons, LLC is 1891979399, a Type 2 (organization) record in the CMS NPPES registry.

Social Worker in Mokena, IL · enumerated 2007 · authorized official Erik Christensen, Manager/Pres.

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

National Provider Identifier

1891979399

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Registry record

Entity type Organization (Type 2)

Legal business name Christensen & Sons, LLC

Parent organization Christensen & Sons, LLC

Practice address 11225 Front Street, Suite 11, Mokena, IL, 60448

Phone (773) 758-9242

Enumeration date Dec 20, 2007

Last updated in NPPES Feb 26, 2019

Taxonomy & classification

104100000X Social Worker Behavioral Health & Social Service Providers Primary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 149-012322 (IL) Secondary

Authorized official

Name Erik Christensen

Title Manager/Pres

Phone (773) 758-3364

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 Christensen & Sons, LLC?

NPPES lists Erik Christensen (Manager/Pres) as the authorized official for this organization.

What is the NPI number for Christensen & Sons, LLC?

The NPI for Christensen & Sons, LLC is 1891979399, a Type 2 (organization) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-02-26.