Individual provider Active NPI

Colleen Llacsa

  • Clinical Social Worker
  • Naperville, IL
National Provider Identifier
1124404454
Registry record updated Sep 22, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Social WorkerTaxonomy code 1041C0700X
License
149024509 Issued in IL
Practice address
608 S Washington St Ste 308
Naperville, IL 60540-6664
Phone
(312) 415-4894
NPI assigned
Aug 10, 2015
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 22, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Social Worker 1041C0700X 149024509 IL Primary

Addresses

Primary practice location

608 S Washington St Ste 308
Naperville, IL 60540-6664

Mailing address

1205 Vermont CT
Naperville, IL 60540-7117
Phone (312) 415-4894

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
149024509ILMDClinical Social Worker

Practice roles

OrganizationSpecialtyStatusNew patients
Tyrrell Counseling and Consulting Clinic CurrentSince Sep 28, 2025 Accepting new patients

Locations

608 S Washington St
Ste 308
Naperville, IL 60540
Phone (312) 415-4894

Organizations & group practices 1

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": "1439164800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1758499200000",
    "number": "1124404454",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1205 VERMONT CT",
            "city": "NAPERVILLE",
            "state": "IL",
            "postal_code": "605407117",
            "telephone_number": "312-415-4894"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "608 S WASHINGTON ST STE 308",
            "city": "NAPERVILLE",
            "state": "IL",
            "postal_code": "605406664",
            "telephone_number": "312-415-4894"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LLACSA",
        "first_name": "COLLEEN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2015-08-10",
        "last_updated": "2025-09-22",
        "certification_date": "2025-09-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "IL",
            "license": "149024509",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Naperville, IL

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 22, 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.