Individual provider Active NPI

Karen A Sobieraj, MSW LCSW BCD

  • Clinical Social Worker
  • Matteson, IL
National Provider Identifier
1861539645
Registry record updated Sep 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Social WorkerTaxonomy code 1041C0700X
License
34000938 Issued in IN
Practice address
20320 S Crawford
Matteson, IL 60443
Phone
(708) 748-6000
Fax
(708) 748-6173
NPI assigned
Jan 31, 2007
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 11, 2025

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

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Addiction (Substance Use Disorder) Counselor 101YA0400X CERTIFICATE 2774 IL
Clinical Social Worker 1041C0700X N1073075 IN
Clinical Social Worker 1041C0700X 34000938 IN Primary
Clinical Social Worker 1041C0700X IL

Addresses

Primary practice location

20320 S Crawford
Matteson, IL 60443

Mailing address

20320 S Crawford
Matteson, IL 60443
Phone (708) 748-6000

Other identifiers 1

IdentifierTypeStateIssuer
0167110825OtherILBLUE CROSS BLUE SHIELD

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled

State licenses

LicenseStateTypeSpecialty
CERTIFICATE 2774ILMDAddiction (Substance Use Disorder) Counselor
IL149000455ILMDClinical Social Worker
34000938INMDClinical Social Worker
N1073075INMDClinical Social Worker

Practice roles

OrganizationSpecialtyStatusNew patients
Transitions Counseling Past Accepting new patients
Northwest Psychological Services, P.C. Past Accepting new patients

Organizations & group practices 2

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.

NPI Registry JSON

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

{
    "created_epoch": "1170201600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1861539645",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "20320 S CRAWFORD",
            "city": "MATTESON",
            "state": "IL",
            "postal_code": "60443",
            "telephone_number": "708-748-6000",
            "fax_number": "708-748-6173"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "20320 S CRAWFORD",
            "city": "MATTESON",
            "state": "IL",
            "postal_code": "60443",
            "telephone_number": "708-748-6000",
            "fax_number": "708-748-6173"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SOBIERAJ",
        "first_name": "KAREN",
        "middle_name": "A",
        "name_prefix": "Ms.",
        "credential": "MSW LCSW BCD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-01-31",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YA0400X",
            "taxonomy_group": "",
            "desc": "Counselor, Addiction (Substance Use Disorder)",
            "state": "IL",
            "license": "CERTIFICATE 2774",
            "primary": false
        },
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "IN",
            "license": "N1073075",
            "primary": false
        },
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "IN",
            "license": "34000938",
            "primary": true
        },
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "IL",
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BLUE CROSS BLUE SHIELD",
            "identifier": "0167110825",
            "state": "IL"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Matteson, IL

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; 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.