MR. ERVIN R. SIVERSON LCSW
NPI 1669648630
Social Worker - Clinical in Portland, OR

Active since April 30, 2008
500 NE MULTNOMAH ST, SUITE 100, PORTLAND, OR 97232(503) 813-2000 Get Directions Write a Review

NPPES record last updated: April 30, 2008. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Mr. Ervin R. Siverson Lcsw NPPES

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

MR. ERVIN R. SIVERSON LCSW (NPI 1669648630) is an individual clinical provider in Portland, Oregon, licensed in Oregon (L2546) and active in the NPI registry since April 2008.

NPPES Registry Identity

NPI1669648630
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameMR. ERVIN R. SIVERSONCredential: LCSW
Location Address500 NE MULTNOMAH ST, SUITE 100Portland, OR 97232-2023
Mailing Address500 Ne Multnomah St, Suite 100Portland, OR 97232-2023 · (503) 813-2000
Sole ProprietorNo
Enumeration DateApril 30, 2008
NPI 1669648630 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 · L2546
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.
500 NE MULTNOMAH ST, Portland, OR 97232

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.

Family Medicine
500 NE MULTNOMAH ST, SUITE 100
PORTLAND, OR 97232
Occupational Therapist
500 NE MULTNOMAH ST
PORTLAND, OR 97232
Anesthesiology
500 NE MULTNOMAH ST, SUITE 100
PORTLAND, OR 97232
Physical Therapist (Geriatrics)
500 NE MULTNOMAH ST
PORTLAND, OR 97232
Counselor (Mental Health)
500 NE MULTNOMAH ST
PORTLAND, OR 97232
Physical Therapist
500 NE MULTNOMAH ST
PORTLAND, OR 97232
Nurse Practitioner (Acute Care)
500 NE MULTNOMAH ST
PORTLAND, OR 97232
Physical Therapist
500 NE MULTNOMAH ST
PORTLAND, OR 97232

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 Ervin Siverson's NPI number?

The NPI number for Ervin Siverson is 1669648630. It was assigned to this individual provider in the NPPES registry on April 30, 2008.

Where is Ervin Siverson located?

Ervin Siverson practices at 500 NE Multnomah St Suite 100, Portland, OR 97232. The listed phone number is (503) 813-2000.

What is Ervin Siverson'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 Ervin Siverson was last updated on April 30, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years 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.