HESSED PSYCHOLOGICAL SERVICES LLC – Clinical Neuropsychologist, NPI 1871149781

HESSED PSYCHOLOGICAL SERVICES LLC is a healthcare provider. based in Belleville, Illinois. specializing in Clinical Neuropsychologist. The NPI Number for HESSED PSYCHOLOGICAL SERVICES LLC is 1871149781

Main info

Organization
Name
HESSED PSYCHOLOGICAL SERVICES LLC
NPI
1871149781
Phone
(618) 744-7373
Address
900 ROYAL HEIGHTS RD RM 14
Authorized Official
DR. BENJAMIN AARON PYYKKONEN CO-FOUNDER - CLINICAL PSYCHOLOGIST PHD
Enumeration Date
15 August 2019
Last Update Date
12 August 2021

Contacts

Main Contact
Geneva
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience32
Completeness85
Years active:6State licenses:0Other namesUpdated within 12 months

Provider Addresses for HESSED PSYCHOLOGICAL SERVICES LLC

  • 900 ROYAL HEIGHTS RD RM 14

    BELLEVILLE, IL 622265457

    Phone: (618) 744-7373

    Type: Location

  • 2247, Kings Court, Geneva, Kane County, Illinois, 60134, United States

    GENEVA, IL 601344331

    Phone: (630) 699-7499

    Type: Mailing

  • 4505 N Illinois St Ste 8

    Swansea, IL 622261500

    Phone: (618) 744-7373

    Type: Location

  • 4756 Fishburg Rd Ste H

    Huber Heights, OH 454245462

    Phone: (937) 567-1546

    Type: Location

  • 1358 SANDCHERRY LN

    WEST CHICAGO, IL 601855973

    Phone: (630) 699-7499

    Type: Mailing

  • 1700 LINCOLN HWY STE J

    ST CHARLES, IL 601743575

    Phone: (331) 707-4031

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2025-08-25

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking 3 Medicare enrollment records; no due dates published yet.

Enrollment records

3

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
O20211210002230OClinic/Group PracticeILTBD
O20220622002489OClinic/Group PracticeOHTBD
O20250825004041OClinic/Group PracticeMOTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 62226)

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Reviews

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Frequently asked questions

Is HESSED PSYCHOLOGICAL SERVICES LLC listed with a National Provider Identifier?
Yes — HESSED PSYCHOLOGICAL SERVICES LLC has NPI 1871149781 on file in the registry.
Is HESSED PSYCHOLOGICAL SERVICES LLC still an active registrant?
HESSED PSYCHOLOGICAL SERVICES LLC carries an active NPI according to the public dataset.
What kind of doctor is HESSED PSYCHOLOGICAL SERVICES LLC?
HESSED PSYCHOLOGICAL SERVICES LLC is associated with Clinical Neuropsychologist in the directory — Clinical services aligned with this taxonomy classification.
Is HESSED PSYCHOLOGICAL SERVICES LLC associated with Belleville?
Public fields place HESSED PSYCHOLOGICAL SERVICES LLC around Belleville, Illinois. Always confirm the exact site before visiting.
Does inactive status remove historical data?
Historical rows can remain visible after status changes — read the dates carefully.

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