Althea R Olson, LCSW

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

149008446 Issued in IL

Practice address

15724 S Route 59 Ste 102
Plainfield, IL 60544-2806

Phone

(630) 527-8877

Fax

(630) 527-8877

NPI assigned

Jul 26, 2006

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Althea R Olson PC

  • Clinical Social Worker
  • Plainfield, IL
  • NPI 1326665217
  NPD Authorized official

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1153872000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782259200000",
    "number": "1881618940",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "15724 S ROUTE 59 STE 102",
            "city": "PLAINFIELD",
            "state": "IL",
            "postal_code": "605442806",
            "telephone_number": "630-527-8877",
            "fax_number": "815-725-8877"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "15724 S ROUTE 59 STE 102",
            "city": "PLAINFIELD",
            "state": "IL",
            "postal_code": "605442806",
            "telephone_number": "630-527-8877",
            "fax_number": "630-527-8877"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2677 US Highway 34 Ste C",
            "address_purpose": "LOCATION",
            "city": "Oswego",
            "state": "IL",
            "postal_code": "605438660",
            "country_code": "US",
            "telephone_number": "630-527-8877",
            "fax_number": "630-527-8877",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "OLSON",
        "first_name": "ALTHEA",
        "middle_name": "R",
        "credential": "LCSW",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-07-26",
        "last_updated": "2026-06-24",
        "certification_date": "2026-06-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "IL",
            "license": "149008446",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Gaylene Marie Oesterreich, MA CCC/SLP
• Brigitte L Oetter, LCSW
• Kaobi Okeke Ewo, RBT
• Elia Olivares, M.S., CCC
• Sheereen Jessel Olsen, M.S., CCC-SLP
• Angela Olson, LCPC
• Olushola O Oluyeba
• Charlyne Olznoi
• Madelyn Olznoi, PHARMD
• Omnicare Home Health Inc.

• Clinical Social Worker in Plainfield, IL
• Providers in Plainfield, IL by specialty
• Clinical Social Worker in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 24, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.