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ALTHEA R OLSON LCSW
NPI 1881618940
Social Worker - Clinical in Plainfield, IL

Active since July 26, 2006
15724 S ROUTE 59 STE 102, PLAINFIELD, IL 60544(630) 527-8877(630) 527-8877 Get Directions Write a Review

NPPES record last updated: June 24, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Dec 10, 2025, Dec 20, 2024, Dec 8, 2023 and 1 more (4 updates tracked since 2022).

About Althea R Olson Lcsw NPPES

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

ALTHEA R OLSON LCSW (NPI 1881618940) is an individual clinical provider in Plainfield, Illinois, licensed in Illinois (149008446) and active in the NPI registry since July 2006. She maintains a secondary practice location in Oswego.

NPPES Registry Identity

NPI1881618940
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameALTHEA R OLSONCredential: LCSW
Location Address15724 S ROUTE 59 STE 102Plainfield, IL 60544-2806
Mailing Address15724 S Route 59 Ste 102Plainfield, IL 60544-2806 · (630) 527-8877 · Fax (815) 725-8877
Phone(630) 527-8877
Fax(630) 527-8877
Sole ProprietorNo
Enumeration DateJuly 26, 2006
Last NPPES UpdateJune 24, 20264 updates tracked since enumeration
NPPES CertifiedJune 24, 2026
✔ NPI 1881618940 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 IL · 149008446
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.
15724 S ROUTE 59 STE 102, Plainfield, IL 60544
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Secondary Practice Location 1

Location 12677 US Highway 34 Ste COswego, IL 60543-8660 · Phone (630) 527-8877 · Fax (630) 527-8877

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter Health, Ambetter Health of Delaware and more.Insurance ›

Other Providers at the Same Location NPPES 5

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

MEGHAN ELIZABETH PETERS
Social Worker
15724 S ROUTE 59 STE 102
PLAINFIELD, IL 60544
Will County (630) 527-8877
ALTHEA R OLSON PC
Social Worker (Clinical)
15724 S ROUTE 59 STE 102
PLAINFIELD, IL 60544
Will County (630) 527-8877
ADVENTIST HEALTH PARTNERS, INC
Obstetrics & Gynecology
15724 S ROUTE 59 STE 102
PLAINFIELD, IL 60544
Will County (815) 230-2875
DYLAN GABRIEL BLOOM LSW
Social Worker
15724 S ROUTE 59 STE 102
PLAINFIELD, IL 60544
Will County (630) 527-8877
MICHAEL ANDREW WASILEWSKI LCSW
Social Worker (Clinical)
15724 S ROUTE 59 STE 102
PLAINFIELD, IL 60544
Will County (630) 527-8877

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 Althea Olson's NPI number?

The NPI number for Althea Olson is 1881618940. It was assigned to this individual provider in the NPPES registry on July 26, 2006.

Where is Althea Olson located?

Althea Olson practices at 15724 S Route 59 Ste 102, Plainfield, IL 60544. The listed phone number is (630) 527-8877.

What is Althea Olson's specialty?

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

What insurance does Althea Olson accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Home State Health and Providence Health Plan list Althea Olson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Althea Olson was last updated on June 24, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.