Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Martha Ann Christensen, MSW, LICSW

Clinical Social Worker in Willmar, MN · enumerated 2006.

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

National Provider Identifier

1841392834

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Registry record

Entity type Individual (Type 1)

Name Martha Ann Christensen

Credential MSW, LICSW

Sex Female

Practice address 513 5th St Sw, Willmar, MN, 56201

Phone (320) 214-9692

Fax (320) 214-9924

Enumeration date Sep 1, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 12201 (MN) Primary

Other identifiers

Identifier	Type	State	Issuer
05Q59CH	Other	MN	BLUE CROSS/BLUE SHIELD

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 Martha Christensen?

The National Provider Identifier (NPI) for Martha Christensen is 1841392834, a Type 1 (individual) record in the CMS NPPES registry.

Where does Martha Christensen practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.