Jessica Lynn Jandak, PSY.D.

Primary specialty

Clinical NeuropsychologistTaxonomy code 103G00000X

Practice address

3743 Highland Ave Ste 2001
Downers Grove, IL 60515-1505

Phone

(630) 719-5454

Fax

(630) 719-1263

NPI assigned

Jun 29, 2018

Last updated

Jul 29, 2025By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Electronic endpoints 4

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

Specialty

Clinical Psychologist

Education

Other, 2016

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Advocate Health and Hospitals CorporationGroup PAC ID 7810800935, 3,081 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Advocate Christ Hospital & Medical Center Hospital, Oak Lawn, IL, CCN 140208

Medicare enrollment (NPD)

Enrolled

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: jjandak249104@direct.myadvocateaurora.org

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.

• Advocate Health and Hospitals Corporation

  dba Advocate Medical Group

  • Multi-Specialty Clinic/Center
  • Oak Brook, IL
  • NPI 1700824455
  Medicare reassignment Care Compare group NPD
• Advocate Health & Hospitals Corporation

  dba Advocate Christ Medical Group

  • Medical Specialty Clinic/Center
  • Oak Lawn, IL
  • NPI 1912936014
  NPD
• Advocate Health and Hospitals Corporation

  dba Advocate Children's Hospital

  • Children's Hospital
  • Oak Lawn, IL
  • NPI 1508315516
  NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Advocate Health and Hospitals Corporation

  dba Advocate Children's Hospital

  • Children's Hospital
  • Oak Lawn, IL
  • NPI 1508315516
  Care Compare affiliation
• Advocate Health and Hospitals Corporation

  dba Advocate Christ Medical Center

  • General Acute Care Hospital
  • Oak Lawn, IL
  • NPI 1548375082
  Care Compare affiliation

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

{
    "created_epoch": "1530230400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753747200000",
    "number": "1043705130",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "29373 NETWORK PL",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606731293",
            "telephone_number": "847-390-5900"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3743 HIGHLAND AVE STE 2001",
            "city": "DOWNERS GROVE",
            "state": "IL",
            "postal_code": "605151505",
            "telephone_number": "630-719-5454",
            "fax_number": "630-719-1263"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1341 Warren Ave",
            "address_purpose": "LOCATION",
            "city": "Downers Grove",
            "state": "IL",
            "postal_code": "605153437",
            "country_code": "US",
            "telephone_number": "630-719-5454",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "JANDAK",
        "first_name": "JESSICA",
        "middle_name": "LYNN",
        "name_prefix": "Dr.",
        "credential": "PSY.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-06-29",
        "last_updated": "2025-07-29",
        "certification_date": "2025-07-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103G00000X",
            "taxonomy_group": "",
            "desc": "Clinical Neuropsychologist",
            "state": "NU",
            "license": null,
            "primary": true
        },
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": "IL",
            "license": "071.010001",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "jjandak249104@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "1341 Warren Ave",
            "city": "Downers Grove",
            "state": "IL",
            "country_code": "US",
            "postal_code": "605153437",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "1341 Warren Ave",
            "city": "Downers Grove",
            "state": "IL",
            "country_code": "US",
            "postal_code": "605153437",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "jjandak249104@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "3743 Highland Ave Ste 2001",
            "city": "Downers Grove",
            "state": "IL",
            "country_code": "US",
            "postal_code": "605151505",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "3743 Highland Ave Ste 2001",
            "city": "Downers Grove",
            "state": "IL",
            "country_code": "US",
            "postal_code": "605151505",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Martha P Jaimes, DMD
• Pinky Jain
• Robert Anthony Jajko, M.D.
• Mary Shiellah Blancaflor James, N.P.
• Jamie Moss DDS PLLC (Sweet Tooth Kids Dentistry)
• Maria J Janecek, D.O.
• Janet Hecht Psychotherapy PLLC
• Kristina A Janich
• Tamyra Michelle Janicki, NP
• Hana Janssen, FNP-BC

• Clinical Neuropsychologist in Downers Grove, IL
• Providers in Downers Grove, IL by specialty
• Clinical Neuropsychologist in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 29, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.