Benjamin Aaron Pyykkonen, PH.D.

Primary specialty

Clinical NeuropsychologistTaxonomy code 103G00000X

License

071.007708 Issued in IL

Practice address

2580 Foxfield Rd Ste 201
Saint Charles, IL 60174-1409

Phone

(331) 707-4031

NPI assigned

Jul 8, 2009

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Other identifiers 1

Electronic endpoints 1

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, 2008

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Hessed Psychological Services LLCGroup PAC ID 0840680575, 8 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Philosophy

State licenses

Practice roles

Locations

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.

• Hessed Psychological Services LLC

  • Clinical Neuropsychologist
  • St Charles, IL
  • NPI 1871149781
  Medicare reassignment Care Compare group NPD Authorized official
• Hesed Psychological Services of Minnesota

  • Clinical Neuropsychologist
  • Alexandria, MN
  • NPI 1578430047
  NPD Authorized official
• Mental Health Matters Practice PLLC

  • Clinical Social Worker
  • Cambridge, MA
  • NPI 1356052641
  NPD
• Geriatric Care Associates

  • Geriatric Psychiatry Physician
  • Westmont, IL
  • NPI 1376651703

  Clinical

  NPD (past)

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

{
    "created_epoch": "1247011200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761091200000",
    "number": "1285863480",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1358 SANDCHERRY LN",
            "city": "WEST CHICAGO",
            "state": "IL",
            "postal_code": "601855973",
            "telephone_number": "630-699-7499"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2580 FOXFIELD RD STE 201",
            "city": "SAINT CHARLES",
            "state": "IL",
            "postal_code": "601741409",
            "telephone_number": "331-707-4031"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "PYYKKONEN",
        "first_name": "BENJAMIN",
        "middle_name": "AARON",
        "credential": "PH.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2009-07-08",
        "last_updated": "2025-10-22",
        "certification_date": "2025-10-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": "IL",
            "license": "071.007708",
            "primary": false
        },
        {
            "code": "103G00000X",
            "taxonomy_group": "",
            "desc": "Clinical Neuropsychologist",
            "state": "IL",
            "license": "071.007708",
            "primary": true
        },
        {
            "code": "103T00000X",
            "taxonomy_group": "",
            "desc": "Psychologist",
            "state": "IL",
            "license": "071.007708",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "INDIVIDUAL NPI",
            "identifier": "1871149781",
            "state": null
        }
    ],
    "endpoints": [
        {
            "endpointType": "CONNECT",
            "endpointTypeDescription": "CONNECT URL",
            "endpoint": "Geneva",
            "affiliation": "Y",
            "affiliationName": "Hessed Psychological Services LLC",
            "address_1": "1700 Lincoln Hwy Ste J",
            "city": "St Charles",
            "state": "IL",
            "country_code": "US",
            "postal_code": "601743575",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Scott Prose, D.D.S., M.S.
• Sarah Pruss, DVM
• Psychological Health Associates
• Patricia D Purnell, MA, LPC
• Kylie Ann Pytlak
• Danielle Nicole Quanstrum
• Eric J Quartetti, M.D.
• Maria N. Quartetti, MD
• Quast DC LTD
• Catherine B. Raack, M.S.

• Clinical Neuropsychologist in Saint Charles, IL
• Providers in Saint Charles, IL by specialty
• Clinical Neuropsychologist in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 22, 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.