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

MISS TIA ANN SIJER LASW
NPI 1215406681
Social Worker - Clinical in Spokane, WA

Active since November 15, 2018
2102 E SPRAGUE AVE, SPOKANE, WA 99202(509) 838-4651 Get Directions Write a Review

NPPES record last updated: August 24, 2026. Verified against the NPPES registry weekly; last sync: September 06, 2026.

Record update history: Aug 24, 2026, Jun 11, 2021, Nov 27, 2018 and 1 more (4 updates tracked since 2018).

About Miss Tia Ann Sijer Lasw NPPES

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

MISS TIA ANN SIJER LASW (NPI 1215406681) is an individual clinical provider in Spokane, Washington, licensed in Washington (61137634) and active in the NPI registry since November 2018.

NPPES Registry Identity

NPI1215406681
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMISS TIA ANN SIJERCredential: LASW
Location Address2102 E SPRAGUE AVESpokane, WA 99202-3125
Mailing Address107 S Division StSpokane, WA 99202-1510 · (509) 838-4650
Sole ProprietorYes
Enumeration DateNovember 15, 2018
Last NPPES UpdateAugust 24, 20264 updates tracked since enumeration
NPPES CertifiedAugust 24, 2026
NPI 1215406681 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License Licensed in WA · 61137634
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
Also ListedCounselorTaxonomy 101Y00000X · License CG60861216 (WA)
Also ListedSocial WorkerTaxonomy 104100000X · License SWI.LW.61137634 (WA)
2102 E SPRAGUE AVE, Spokane, WA 99202

Other Providers at the Same Location NPPES 20

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

Social Worker (Clinical)
2102 E SPRAGUE AVE
SPOKANE, WA 99202
Counselor
2102 E SPRAGUE AVE
SPOKANE, WA 99202
Counselor
2102 E SPRAGUE AVE
SPOKANE, WA 99202
Counselor
2102 E SPRAGUE AVE
SPOKANE, WA 99202
Social Worker (Clinical)
2102 E SPRAGUE AVE
SPOKANE, WA 99202
Social Worker (Clinical)
2102 E SPRAGUE AVE
SPOKANE, WA 99202
Counselor
2102 E SPRAGUE AVE
SPOKANE, WA 99202
Social Worker
2102 E SPRAGUE AVE
SPOKANE, WA 99202

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 Tia Sijer's NPI number?

The NPI number for Tia Sijer is 1215406681. It was assigned to this individual provider in the NPPES registry on November 15, 2018.

Where is Tia Sijer located?

Tia Sijer practices at 2102 E Sprague Ave, Spokane, WA 99202. The listed phone number is (509) 838-4651.

What is Tia Sijer's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

When was this NPI record last updated?

The NPPES record for Tia Sijer was last updated on August 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.