Althea Olson, LCSW
NPI 1881618940 · Clinical Social Worker · Plainfield, IL
Althea Olson, LCSW is a Clinical Social Worker provider in Plainfield, IL (NPI 1881618940).
Provider details
- NPI number
- 1881618940
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- No
- License
- 149008446 (IL)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 2677 US Highway 34 Ste COswego, IL 60543-8660Phone: (630) 527-8877Fax: (630) 527-8877
Registry dates
- Enumerated
- 2006-07-26
- Last updated
- 2025-12-10
- Certified
- 2025-12-10
Frequently asked questions
- What is Althea Olson's NPI number?
- Althea Olson's National Provider Identifier (NPI) is 1881618940, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Althea Olson's specialty?
- Althea Olson is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Althea Olson located?
- Althea Olson's practice location on file with NPPES is 15724 S Route 59 Ste 102, Plainfield, IL 60544-2806.
- What is Althea Olson's phone number?
- The practice phone number listed in the NPPES registry for Althea Olson is (630) 527-8877.
- Is Althea Olson's NPI active?
- Yes — Althea Olson's NPI (1881618940) is active in the NPPES registry as of the last update on 2025-12-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.