Individual provider Active NPI

Kathryn Casamassimo

  • Clinical Social Worker
  • Oak Brook, IL
National Provider Identifier
1205333531
Registry record updated Apr 12, 2018
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Social WorkerTaxonomy code 1041C0700X
License
149.012427 Issued in IL
Practice address
2021 Midwest Rd Ste 100C
Oak Brook, IL 60523-1394
Phone
(708) 223-8405
NPI assigned
Apr 12, 2018
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Apr 12, 2018

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 149.012427 IL Primary

Addresses

Primary practice location

2021 Midwest Rd Ste 100C
Oak Brook, IL 60523-1394

Mailing address

3532 Blanchan Ave
Brookfield, IL 60513-1102
Phone (630) 697-4442

Other names 1

  • Katy Casamassimo Professional name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: No
  • Power mobility devices: No
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20250515000974 IL Practitioner - Mental Health Counselor 1456875566 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Mental Health Counselor
Education
Other, 2004
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Guided Discovery Mental Health PLLCGroup PAC ID 2264953900, 2 clinicians

Practice addresses (Care Compare)

340 W Butterfield Rd
Suite LLB
Elmhurst, IL 60126-5024
Phone (630) 474-8919

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
149.012427ILMDClinical Social Worker

Practice roles

OrganizationSpecialtyStatusNew patients
Guided Discovery Mental Health PLLC CurrentSince Apr 16, 2025 Accepting new patients
Guided Discovery Mental Health PLLC Clinical Current Accepting new patients
Diverse Legacy Incorporated PastSince Aug 8, 2024 Accepting new patients

Locations

340 W Butterfield Rd
Ste Llb
Elmhurst, IL 60126
Phone (630) 474-8919

Organizations & group practices 3

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": "1523491200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1523491200000",
    "number": "1205333531",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3532 BLANCHAN AVE",
            "city": "BROOKFIELD",
            "state": "IL",
            "postal_code": "605131102",
            "telephone_number": "630-697-4442"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2021 MIDWEST RD STE 100C",
            "city": "OAK BROOK",
            "state": "IL",
            "postal_code": "605231394",
            "telephone_number": "708-223-8405"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CASAMASSIMO",
        "first_name": "KATHRYN",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2018-04-12",
        "last_updated": "2018-04-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "IL",
            "license": "149.012427",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "KATY",
            "last_name": "CASAMASSIMO",
            "credential": "LCSW",
            "code": "2",
            "type": "Professional Name"
        }
    ]
}

Other providers in Oak Brook, IL

Sources for this page

Verify at the official NPI Registry.