Individual provider Active NPI

Caitlin Giammusso, LMFT

  • Mental Health Counselor
  • Glen Ellyn, IL
National Provider Identifier
1891591426
Registry record updated Oct 8, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Mental Health CounselorTaxonomy code 101YM0800X
License
166.001945 Issued in IL
Practice address
460 N Main St
Glen Ellyn, IL 60137-5176
Phone
(708) 628-8000
NPI assigned
Feb 24, 2025
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 8, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Mental Health Counselor 101YM0800X 166.001945 IL Primary

Addresses

Primary practice location

460 N Main St
Glen Ellyn, IL 60137-5176

Mailing address

460 N Main St
Glen Ellyn, IL 60137-5176
Phone (920) 573-5445

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
I20251103001290 IL Practitioner - Marriage and Family Therapist 0547759110 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Marriage and Family Therapist
Education
Other, 2022
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

215 Harrison St
Oak Park, IL 60304-1533

5412 7TH St
Zephyr Hillis, FL 33542-4228

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
166.001945ILMDMental Health Counselor

Practice roles

OrganizationSpecialtyStatusNew patients
Mosaic Counseling and Wellness LLC CurrentSince Oct 6, 2025 Accepting new patients

Locations

386 N York St
Elmhurst, IL 60126
Phone (312) 213-7862

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": "1740355200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759881600000",
    "number": "1891591426",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "460 N MAIN ST",
            "city": "GLEN ELLYN",
            "state": "IL",
            "postal_code": "601375176",
            "telephone_number": "920-573-5445"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "460 N MAIN ST",
            "city": "GLEN ELLYN",
            "state": "IL",
            "postal_code": "601375176",
            "telephone_number": "708-628-8000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GIAMMUSSO",
        "first_name": "CAITLIN",
        "credential": "LMFT",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-02-24",
        "last_updated": "2025-10-08",
        "certification_date": "2025-10-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YM0800X",
            "taxonomy_group": "",
            "desc": "Counselor, Mental Health",
            "state": "IL",
            "license": "166.001945",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Glen Ellyn, IL

Sources for this page

Verify at the official NPI Registry.