Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Clinical Psychologist

John Lewandowski Iii, PSY

Sees patients in Schaumburg, IL · Illinois

Summary

John Lewandowski Iii, PSY (Clinical Psychologist) is enrolled with Medicare at 1 practice location in Schaumburg, IL. NPI 1104307917. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about John Lewandowski Iii, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Clinical PsychologistPrimary specialty
YesAccepts Medicare assignment
8Years since medical school (graduated 2018)
MaleGender (as listed)
Pra Behavioral LLCGroup practice

Quick answers

Where does John Lewandowski Iii see patients?
Medicare's clinician data lists 1 practice location in Schaumburg, IL. Call before your visit to confirm the address.
What is John Lewandowski Iii's specialty?
Medicare lists Clinical Psychologist as the primary specialty.
Does John Lewandowski Iii accept Medicare assignment?
Yes. Medicare's clinician data says John Lewandowski Iii accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for John Lewandowski Iii?
(847) 240-2211, as listed in official Medicare / NPI Registry data.
What is John Lewandowski Iii's NPI number?
1104307917. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where John Lewandowski Iii is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists John Lewandowski Iii as a member of this group (CMS data updated 2026-10-02).

  • Pra Behavioral LLC27 clinicians in the group

Specialties

Find other clinicians: Clinical Psychologist, Illinois →

Other clinical psychologists in Schaumburg

Clinicians with the same Medicare primary specialty in Schaumburg, IL — not a recommendation.

All clinical psychologists in Schaumburg →

Clinician information

CredentialPSY
Graduation year2018
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1104307917
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians