Individual provider Active NPI

Lauren Tomaszek, LSW, CADC

  • Social Worker
  • Chicago, IL
National Provider Identifier
1154050235
Registry record updated Mar 26, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Social WorkerTaxonomy code 104100000X
License
150.109394 Issued in IL
Practice address
820 N Orleans St Ste 350
Chicago, IL 60610-3145
Phone
(312) 809-0298
Fax
(866) 687-0879
NPI assigned
Jun 6, 2022
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 26, 2025

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Social Worker 104100000X
Social Worker 104100000X IL
Social Worker 104100000X 150.109394 IL Primary

Addresses

Primary practice location

820 N Orleans St Ste 350
Chicago, IL 60610-3145

Mailing address

820 N Orleans St Ste 350
Chicago, IL 60610-3145
Phone (708) 383-7500

Other practice location 1

1010 Lake St Ste 605
Oak Park, IL 60301-1136
Phone (312) 809-0298

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
150.109394ILMDSocial Worker

Practice roles

OrganizationSpecialtyStatusNew patients
Wildflower Center for Emotional Health PLLC CurrentSince Mar 30, 2025 Accepting new patients
Blue Bird Day LLC PastSince Jun 1, 2022 Accepting new patients

Locations

820 N Orleans St
Ste 350
Chicago, IL 60610
Phone (312) 809-0298

1010 Lake St
Ste 605
Oak Park, IL 60301
Phone (312) 309-0298

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": "1654473600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1742947200000",
    "number": "1154050235",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "820 N ORLEANS ST STE 350",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606103145",
            "telephone_number": "708-383-7500"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "820 N ORLEANS ST STE 350",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606103145",
            "telephone_number": "312-809-0298",
            "fax_number": "866-687-0879"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1010 Lake St Ste 605",
            "address_purpose": "LOCATION",
            "city": "Oak Park",
            "state": "IL",
            "postal_code": "603011136",
            "country_code": "US",
            "telephone_number": "312-809-0298",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "TOMASZEK",
        "first_name": "LAUREN",
        "name_prefix": "Ms.",
        "credential": "LSW, CADC",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2022-06-06",
        "last_updated": "2025-03-26",
        "certification_date": "2025-03-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "IL",
            "license": null,
            "primary": false
        },
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "IL",
            "license": "150.109394",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Chicago, IL

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 26, 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.