Organization Active NPI

LJT Therapeutics

  • Adolescent and Children Mental Health Clinic/Center
  • Chicago, IL
National Provider Identifier
1659259950
Registry record updated Oct 30, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Adolescent and Children Mental Health Clinic/CenterTaxonomy code 261QM0855X
Legal business name
LJT THERAPEUTICS
Practice address
5113 S Harper Ave Ste 2C
Chicago, IL 60615-4119
Phone
(708) 332-1782
NPI assigned
Aug 25, 2025
Last updated
Oct 30, 2025By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Oct 30, 2025

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

Authorized official

Name
Lahaji Thomas, LCSWNPI 1689255085
Title
Ceo
Phone
(773) 600-6667

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Adult Mental Health Clinic/Center 261QM0850X NU
Adolescent and Children Mental Health Clinic/Center 261QM0855X NU Primary

Addresses

Primary practice location

5113 S Harper Ave Ste 2C
Chicago, IL 60615-4119

Mailing address

5322 S Hunt Ave
Summit, IL 60501-1024

Other practice location 1

1130 S Canal St Ste 1177
Chicago, IL 60607-5058
Phone (773) 600-6667

National Provider Directory

National Provider Directory
Tax ID family
LJT Therapeutics2 organizations share this tax ID, including this one

Other organizations with this tax ID 1

Organizations that report the same tax identification number in the National Provider Directory.

Locations

1130 S Canal St
Ste 1177
Chicago, IL 60607
Phone (630) 797-0900

Practitioners & affiliated clinicians

Practitioners 2

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

NPI Registry JSON

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

{
    "created_epoch": "1756080000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1761782400000",
    "number": "1659259950",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5322 S HUNT AVE",
            "city": "SUMMIT",
            "state": "IL",
            "postal_code": "605011024"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5113 S HARPER AVE STE 2C",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606154119",
            "telephone_number": "708-332-1782"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1130 S Canal St Ste 1177",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606075058",
            "country_code": "US",
            "telephone_number": "773-600-6667",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "organization_name": "LJT THERAPEUTICS",
        "organizational_subpart": "NO",
        "enumeration_date": "2025-08-25",
        "last_updated": "2025-10-30",
        "certification_date": "2025-10-30",
        "status": "A",
        "authorized_official_last_name": "THOMAS",
        "authorized_official_first_name": "LAHAJI",
        "authorized_official_title_or_position": "CEO",
        "authorized_official_telephone_number": "773-600-6667",
        "authorized_official_credential": "LCSW"
    },
    "taxonomies": [
        {
            "code": "261QM0850X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Adult Mental Health",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "261QM0855X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Adolescent and Children Mental Health",
            "state": "NU",
            "license": null,
            "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 Oct 30, 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.