Individual provider Active NPI

Tammy Hevrdejs

  • Clinical Psychologist
  • Barrington, IL
National Provider Identifier
1790634780
Registry record updated Jan 23, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical PsychologistTaxonomy code 103TC0700X
License
071005295 Issued in IL
Practice address
777 Lake Zurich Rd Ste 110F
Barrington, IL 60010-3122
Phone
(630) 209-0923
NPI assigned
Jan 23, 2026
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jan 23, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical PsychologistGroup: 193400000X SINGLE SPECIALTY GROUP 103TC0700X 071005295 IL Primary

Addresses

Primary practice location

777 Lake Zurich Rd Ste 110F
Barrington, IL 60010-3122

Mailing address

PO Box 1192
Barrington, IL 60011-1192
Phone (630) 209-0923

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled

Practice roles

OrganizationSpecialtyStatusNew patients
Nancy a Kunkel P C Clinical Current Accepting new patients
Hull Psychological Services LLC Clinical Current Accepting new patients
Compassionate Communities for Children Clinical Current Accepting new patients

Locations

777 Lake Zurich Rd
Ste 110F
Barrington, IL 60010
Phone (630) 209-0923

Organizations & group practices 3

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": "1769126400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769126400000",
    "number": "1790634780",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 1192",
            "city": "BARRINGTON",
            "state": "IL",
            "postal_code": "600111192",
            "telephone_number": "630-209-0923"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "777 LAKE ZURICH RD STE 110F",
            "city": "BARRINGTON",
            "state": "IL",
            "postal_code": "600103122",
            "telephone_number": "630-209-0923"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HEVRDEJS",
        "first_name": "TAMMY",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2026-01-23",
        "last_updated": "2026-01-23",
        "certification_date": "2026-01-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103TC0700X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Psychologist, Clinical",
            "state": "IL",
            "license": "071005295",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Barrington, IL

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 23, 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.