Dr. Shannon Allegretti, PLLC

Primary specialty

Clinical PsychologistTaxonomy code 103TC0700X

Legal business name

DR. SHANNON ALLEGRETTI, PLLC

Practice address

2323 Downing Ave
Westchester, IL 60154-5148

Phone

(630) 472-0911

NPI assigned

Feb 19, 2026

Last updated

Feb 19, 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

Dr. Shannon Allegretti, PSY.D.NPI 1407989080

Title

Owner / Manager

Phone

(630) 472-0911

Specialties & licenses 9

Addresses

Practitioners 1

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.

• Shannon Marie Allegretti, PSY.D.

  • Clinical Psychologist
  • Naperville, IL
  • NPI 1407989080
  NPD Authorized official

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

{
    "created_epoch": "1771459200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1771459200000",
    "number": "1700739513",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2323 DOWNING AVE",
            "city": "WESTCHESTER",
            "state": "IL",
            "postal_code": "601545148",
            "telephone_number": "630-472-0911"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2323 DOWNING AVE",
            "city": "WESTCHESTER",
            "state": "IL",
            "postal_code": "601545148",
            "telephone_number": "630-472-0911"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "DR. SHANNON ALLEGRETTI, PLLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2026-02-19",
        "last_updated": "2026-02-19",
        "certification_date": "2026-02-19",
        "status": "A",
        "authorized_official_last_name": "ALLEGRETTI",
        "authorized_official_first_name": "SHANNON",
        "authorized_official_title_or_position": "OWNER / MANAGER",
        "authorized_official_telephone_number": "630-472-0911",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "PSY.D."
    },
    "taxonomies": [
        {
            "code": "103T00000X",
            "taxonomy_group": "",
            "desc": "Psychologist",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "103TA0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Adult Development & Aging",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "103TB0200X",
            "taxonomy_group": "",
            "desc": "Psychologist, Cognitive & Behavioral",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "103TC1900X",
            "taxonomy_group": "",
            "desc": "Psychologist, Counseling",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "103TC2200X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical Child & Adolescent",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "103TF0000X",
            "taxonomy_group": "",
            "desc": "Psychologist, Family",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "103TP0814X",
            "taxonomy_group": "",
            "desc": "Psychologist, Psychoanalysis",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "103TH0004X",
            "taxonomy_group": "",
            "desc": "Psychologist, Health",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Clinical Psychologist in Westchester, IL
• Providers in Westchester, IL by specialty
• Clinical Psychologist in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 19, 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.