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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

LOUIS CHRISTIANSEN
NPI 1154165173
Social Worker in Eureka, CA

Active since June 24, 2024

NPPES record last updated: June 9, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Louis Christiansen NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

LOUIS CHRISTIANSEN (NPI 1154165173) is an individual social worker in Eureka, California and active in the NPI registry since June 2024.

NPPES Registry Identity

NPI1154165173
Entity TypeIndividualMale
Primary Taxonomy104100000X
Provider Legal NameLOUIS CHRISTIANSEN
Location Address310 F STEureka, CA 95501-1006
Mailing Address310 F StEureka, CA 95501-1006 · (707) 390-0393
Phone(707) 390-0393
Sole ProprietorNo
Enumeration DateJune 24, 2024
Last NPPES UpdateJune 9, 2026
NPPES CertifiedJune 9, 2026
✔ NPI 1154165173 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
310 F ST, Eureka, CA 95501
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Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

HUMBOLDT COUNSELING CONNECTION
Counselor (Mental Health)
310 F ST
EUREKA, CA 95501
Humboldt County (707) 390-0393
VANESSA LAIRD
Student in an Organized Health Care Education/Training Program
310 F ST
EUREKA, CA 95501
Humboldt County (707) 390-0393
HUMBOLDT COUNSELING CONNECTION
Clinic/Center (Mental Health (Including Community Mental Health Center))
310 F ST
EUREKA, CA 95501
Humboldt County (707) 390-0393
TAMELA DAWN CHRISTIANSEN
Counselor (Mental Health)
310 F ST
EUREKA, CA 95501
Humboldt County (707) 390-0393

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Louis Christiansen's NPI number?

The NPI number for Louis Christiansen is 1154165173. It was assigned to this individual provider in the NPPES registry on June 24, 2024.

Where is Louis Christiansen located?

Louis Christiansen practices at 310 F St, Eureka, CA 95501. The listed phone number is (707) 390-0393.

What is Louis Christiansen's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

When was this NPI record last updated?

The NPPES record for Louis Christiansen was last updated on June 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 58 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.