Individual provider Active NPI

Mary Sirois, LSW

  • Social Worker
  • Chicago, IL
National Provider Identifier
1285550871
Registry record updated Jun 26, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Social WorkerTaxonomy code 104100000X
License
150.129410 Issued in IL
Practice address
4854 W Irving Park Rd
Chicago, IL 60641-2718
Phone
(773) 774-4444
NPI assigned
Jun 26, 2026
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 26, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Social Worker 104100000X 150.129410 IL Primary

Addresses

Primary practice location

4854 W Irving Park Rd
Chicago, IL 60641-2718

Mailing address

4943 W Belle Plaine Ave Apt 2a
Chicago, IL 60641-1767

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

NPI Registry JSON

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

{
    "created_epoch": "1782432000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782432000000",
    "number": "1285550871",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4943 W BELLE PLAINE AVE APT 2A",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606411767"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4854 W IRVING PARK RD",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606412718",
            "telephone_number": "773-774-4444"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIROIS",
        "first_name": "MARY",
        "credential": "LSW",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2026-06-26",
        "last_updated": "2026-06-26",
        "certification_date": "2026-06-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "IL",
            "license": "150.129410",
            "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 Jun 26, 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.