Janet Katherine Willer, PH.D.

Primary specialty

Clinical PsychologistTaxonomy code 103TC0700X

Practice address

4753 N Broadway St
Suite 530
Chicago, IL 60640-5266

Phone

(774) 859-1822

Fax

(773) 275-2252

NPI assigned

Nov 18, 2005

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Opted out of Medicare

Yes, effective May 29, 2023 through May 29, 2027

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Philosophy

State licenses

Practice roles

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Integrative Psyche Services, S.C.

  • Clinical Psychologist
  • Chicago, IL
  • NPI 1619113396
  NPD (past)

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

{
    "created_epoch": "1132272000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1982686531",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4753 N BROADWAY ST",
            "address_2": "SUITE 530",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606405266",
            "telephone_number": "774-859-1822",
            "fax_number": "773-275-2252"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4753 N BROADWAY ST",
            "address_2": "SUITE 530",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606405266",
            "telephone_number": "774-859-1822",
            "fax_number": "773-275-2252"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLER",
        "first_name": "JANET",
        "middle_name": "KATHERINE",
        "name_prefix": "Dr.",
        "credential": "PH.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-11-18",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": "IL",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Stacey Willard, PSY.D.
• Mark Aaron Wille, M.D.
• Tommy Richard Wille Jr.
• Jacob Willen
• Gary Alan Willer
• James Kurt Willerman, D.D.S.
• Susan Marie Willette, M.S., CCC-SLP
• Amy Willetts, APN
• Miranda Lynn Willetts, RD, LDN, PN2
• Vanessa Lynne Willetts, D.C.

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

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Opt Out Affidavits.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.