Individual provider Active NPI

Donna Lettieri-Marks, PSY.D.

  • Clinical Psychologist
  • Naperville, IL
National Provider Identifier
1346233665
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical PsychologistTaxonomy code 103TC0700X
Practice address
55 S Main St
Suite 371
Naperville, IL 60540-5372
Phone
(630) 904-6610
Fax
(630) 544-3429
NPI assigned
Aug 23, 2005
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Psychologist 103TC0700X IL Primary

Addresses

Primary practice location

55 S Main St
Suite 371
Naperville, IL 60540-5372

Mailing address

55 S Main St
Suite 371
Naperville, IL 60540-5372
Phone (630) 904-6610

Other identifiers 1

IdentifierTypeStateIssuer
50521OtherNATIONAL REGISTER

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: No
  • Power mobility devices: No
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20060116000314 IL Practitioner - Clinical Psychologist 3476577644 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Clinical Psychologist
Education
Other, 1995
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services

Practice addresses (Care Compare)

55 S Main St
Suite 371
Naperville, IL 60540-5381
Phone (630) 904-6610

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
071-005423ILMDClinical Psychologist

Practice roles

OrganizationSpecialtyStatusNew patients
Donna Lettieri-Marks, Psy.D., LTD CurrentSince Mar 25, 2009 Accepting new patients
Rush Ambulatory Behavioral Health Past Accepting new patients

Locations

55 S Main St
Ste 371
Naperville, IL 60540
Phone (630) 904-6610

Organizations & group practices 2

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": "1124755200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1346233665",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "55 S MAIN ST",
            "address_2": "SUITE 371",
            "city": "NAPERVILLE",
            "state": "IL",
            "postal_code": "605405372",
            "telephone_number": "630-904-6610",
            "fax_number": "630-544-3429"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "55 S MAIN ST",
            "address_2": "SUITE 371",
            "city": "NAPERVILLE",
            "state": "IL",
            "postal_code": "605405372",
            "telephone_number": "630-904-6610",
            "fax_number": "630-544-3429"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LETTIERI-MARKS",
        "first_name": "DONNA",
        "name_prefix": "Dr.",
        "credential": "PSY.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-08-23",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": "IL",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "NATIONAL REGISTER",
            "identifier": "50521",
            "state": null
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Naperville, IL

Sources for this page

Verify at the official NPI Registry.