Brennan Johnston Psychotherapy PLLC

Primary specialty

Mental Health CounselorTaxonomy code 101YM0800X

Legal business name

BRENNAN JOHNSTON PSYCHOTHERAPY PLLC

Practice address

219 55TH St Ste 108
Clarendon Hills, IL 60514-1597

Phone

(847) 204-2037

NPI assigned

Sep 14, 2026

Last updated

Sep 14, 2026By the provider in NPPES

Organization subpart

No

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

Authorized official

Name

Brennan Johnston, LCPC

Title

Manager

Phone

(847) 204-2037

Specialties & licenses 1

Addresses

Locations

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

{
    "created_epoch": "1789344000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1789344000000",
    "number": "1508777160",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "276 E DEERPATH STE 428",
            "city": "LAKE FOREST",
            "state": "IL",
            "postal_code": "600451940"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "219 55TH ST STE 108",
            "city": "CLARENDON HILLS",
            "state": "IL",
            "postal_code": "605141597",
            "telephone_number": "847-204-2037"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "BRENNAN JOHNSTON PSYCHOTHERAPY PLLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2026-09-14",
        "last_updated": "2026-09-14",
        "certification_date": "2026-09-14",
        "status": "A",
        "authorized_official_last_name": "JOHNSTON",
        "authorized_official_first_name": "BRENNAN",
        "authorized_official_title_or_position": "MANAGER",
        "authorized_official_telephone_number": "847-204-2037",
        "authorized_official_credential": "LCPC"
    },
    "taxonomies": [
        {
            "code": "101YM0800X",
            "taxonomy_group": "",
            "desc": "Counselor, Mental Health",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Mental Health Counselor in Clarendon Hills, IL
• Providers in Clarendon Hills, IL by specialty
• Mental Health Counselor in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 14, 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.