Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

STEPHEN KELLER
NPI 1386558120
Psychologist - Clinical in Oak Brook, IL

Q: What is Stephen Keller's NPI number?

The NPI number for Stephen Keller is 1386558120. It was assigned to this individual provider in the NPPES registry on September 29, 2026.

Q: What is Stephen Keller's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Q: When was this NPI record last updated?

The NPPES record for Stephen Keller was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since September 29, 2026

2625 BUTTERFIELD RD STE 301, OAK BROOK, IL 60523(630) 522-3124 Get Directions Write a Review

NPPES record added: September 29, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

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About Stephen Keller NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

STEPHEN KELLER (NPI 1386558120) is an individual clinical provider in Oak Brook, Illinois, licensed in Illinois (071.011253) and active in the NPI registry since September 2026.

NPPES Registry Identity

NPI1386558120

Entity TypeIndividualMale

Primary Taxonomy103TC0700X

Provider Legal NameSTEPHEN KELLER

Location Address2625 BUTTERFIELD RD STE 301Oak Brook, IL 60523-1234

Mailing Address2625 Butterfield Rd Ste 301Oak Brook, IL 60523-1234

Phone(630) 522-3124

Sole ProprietorYes

Enumeration DateSeptember 29, 2026

NPPES CertifiedSeptember 29, 2026

✔ NPI 1386558120 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in IL · 071.011253

Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

2625 BUTTERFIELD RD STE 301, Oak Brook, IL 60523

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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Stephen Keller's NPI number?

The NPI number for Stephen Keller is 1386558120. It was assigned to this individual provider in the NPPES registry on September 29, 2026.

Where is Stephen Keller located?

Stephen Keller practices at 2625 Butterfield Rd Ste 301, Oak Brook, IL 60523. The listed phone number is (630) 522-3124.

What is Stephen Keller's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

When was this NPI record last updated?

The NPPES record for Stephen Keller was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.