TRISTEN SIERRA LITTERIO
NPI 1326769183
Social Worker - Clinical in Portland, OR

Q: What is Tristen Litterio's NPI number?

The NPI number for Tristen Litterio is 1326769183. It was assigned to this individual provider in the NPPES registry on September 8, 2022.

Q: What is Tristen Litterio's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Tristen Litterio was last updated on November 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months 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.

Active since September 08, 2022

1110 SE ALDER ST STE 301, PORTLAND, OR 97214(503) 404-3637 Get Directions Write a Review

NPPES record last updated: November 18, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Nov 18, 2025, Sep 23, 2022, Sep 8, 2022 (3 updates tracked since 2022).

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About Tristen Sierra Litterio NPPES

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

TRISTEN SIERRA LITTERIO (NPI 1326769183) is an individual clinical provider in Portland, Oregon, licensed in Oregon (L17312) and active in the NPI registry since September 2022. She maintains a secondary practice location in Portland.

NPPES Registry Identity

NPI1326769183

Entity TypeIndividualFemale

Primary Taxonomy1041C0700X

Provider Legal NameTRISTEN SIERRA LITTERIO

Location Address1110 SE ALDER ST STE 301Portland, OR 97214-2400

Mailing Address6902 Se Lake Rd Ste 203Portland, OR 97267-2148 · (503) 404-3637

Phone(503) 404-3637

Sole ProprietorYes

Enumeration DateSeptember 8, 2022

Last NPPES UpdateNovember 18, 20253 updates tracked since enumeration

NPPES CertifiedNovember 18, 2025

✔ NPI 1326769183 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code1041C0700X

License✔ Licensed in OR · L17312

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.

1110 SE ALDER ST STE 301, Portland, OR 97214

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Secondary Practice Location 1

Location 16902 SE Lake Rd Ste 203Portland, OR 97267-2148 · Phone (503) 404-3637

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Moda Health Plan, Inc..Insurance ›

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.

MS. SONYA CARMEN STRICKLAND LCSW

Social Worker (Clinical)