NPPES file of Aug 9, 2026

Find an organization's NPI

5 active organization NPIs are registered under names beginning "Oak Forest Psychological Service" in Illinois. Each location can bill under its own NPI, so add the city to find the one you need.

1 to 5 of 5, exact name first

  1. Oak Forest Psychological Service, PC

    Psychiatry Physician · Bourbonnais, IL · issued Mar 13, 2008

    1669643003
  2. Oak Forest Psychological Service

    Clinical Psychologist · Countryside, IL · issued May 23, 2006

    1265487060
  3. Oak Forest Psychological Service

    Clinical Psychologist · Countryside, IL · issued Mar 17, 2008

    1326219510
  4. Oak Forest Psychological Service

    Clinical Psychologist · Countryside, IL · issued Mar 17, 2008

    1225209414
  5. Oak Forest Psychological Service, PC

    Psychiatry Physician · Frankfort, IL · issued Mar 13, 2008

    1306017744

Source: CMS NPPES monthly file of Aug 9, 2026, organization (Type 2) records.