Organization Active NPI

Insight Psychological Services PLLC

  • Clinical Psychologist
  • Chicago, IL
National Provider Identifier
1053773226
Registry record updated Apr 15, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical PsychologistTaxonomy code 103TC0700X
Legal business name
INSIGHT PSYCHOLOGICAL SERVICES PLLC
Doing business as
Insight Psychological Services PLLC
Practice address
3660 N Lake Shore Dr Ste 201
Chicago, IL 60613-5302
Phone
(773) 450-8049
NPI assigned
Mar 25, 2016
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Apr 15, 2026

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

Authorized official

Name
David Charles Usndek, PSY.DNPI 1073684643
Title
Owner/Psy.D
Phone
(773) 450-8049

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
Clinical PsychologistGroup: 193400000X SINGLE SPECIALTY GROUP 103TC0700X Primary
Community/Behavioral Health Agency 251S00000X 4703 AZ

Addresses

Primary practice location

3660 N Lake Shore Dr Ste 201
Chicago, IL 60613-5302

Mailing address

3660 N Lake Shore Dr Ste 210
Chicago, IL 60613-5302
Phone (773) 450-8049

Other names 1

  • INSIGHT PSYCHOLOGICAL SERVICES PLLC Doing business as

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20240322002927 IL Part B Supplier - Clinic/Group Practice 2062785553 Receives reassigned benefits from 1 practitioner
Practice locations: Chicago, IL

National Provider Directory

National Provider Directory

Locations

3045 N 1st Ave
Tucson, AZ 85719
Phone (520) 505-1971

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": "1458864000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1776211200000",
    "number": "1053773226",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3660 N LAKE SHORE DR STE 210",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606135302",
            "telephone_number": "773-450-8049"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3660 N LAKE SHORE DR STE 201",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606135302",
            "telephone_number": "773-450-8049"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "INSIGHT PSYCHOLOGICAL SERVICES PLLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2016-03-25",
        "last_updated": "2026-04-15",
        "certification_date": "2026-04-15",
        "status": "A",
        "authorized_official_last_name": "USNDEK",
        "authorized_official_first_name": "DAVID",
        "authorized_official_middle_name": "CHARLES",
        "authorized_official_title_or_position": "OWNER/PSY.D",
        "authorized_official_telephone_number": "773-450-8049",
        "authorized_official_credential": "PSY.D"
    },
    "taxonomies": [
        {
            "code": "103TC0700X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Psychologist, Clinical",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "251S00000X",
            "taxonomy_group": "",
            "desc": "Community/Behavioral Health",
            "state": "AZ",
            "license": "4703",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "INSIGHT PSYCHOLOGICAL SERVICES PLLC",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

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 Apr 15, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.