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

NATHAN KAAG BCBA
NPI 1457268559
Behavior Analyst in Fairview Heights, IL

Q: What is Nathan Kaag's NPI number?

The NPI number for Nathan Kaag is 1457268559. It was assigned to this individual provider in the NPPES registry on August 25, 2026.

Q: What is Nathan Kaag's specialty?

The primary specialty registered for this NPI is Behavior Analyst with taxonomy code 103K00000X.

Q: When was this NPI record last updated?

The NPPES record for Nathan Kaag was last updated on August 25, 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 August 25, 2026

105 MARK DR, FAIRVIEW HEIGHTS, IL 62208(314) 277-6729 Get Directions Write a Review

NPPES record added: August 25, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

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About Nathan Kaag Bcba NPPES

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

NATHAN KAAG BCBA (NPI 1457268559) is an individual behavior analyst provider in Fairview Heights, Illinois, licensed in Illinois (152003725) and active in the NPI registry since August 2026.

NPPES Registry Identity

NPI1457268559

Entity TypeIndividualMale

Primary Taxonomy103K00000X

Provider Legal NameNATHAN KAAGCredential: BCBA

Location Address105 MARK DRFairview Heights, IL 62208-1810

Mailing Address105 Mark DrFairview Heights, IL 62208-1810

Phone(314) 277-6729

Sole ProprietorNo

Enumeration DateAugust 25, 2026

NPPES CertifiedAugust 25, 2026

✔ NPI 1457268559 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyBehavior AnalystBehavioral Health & Social Service Providers

Taxonomy Code103K00000X

License✔ Licensed in IL · 152003725

Definition

A behavior analyst is qualified by at least a master's degree and Behavior Analyst Certification Board certification and/or a state-issued credential (such as a license) to practice behavior analysis independently. Behavior analysts provide the required supervision to assistant behavior analysts and behavior technicians. A behavior analyst delivers services consistent with the dimensions of applied behavior analysis. Common services may include, but are not limited to, conducting behavioral assessments, analyzing data, writing and revising behavior-analytic treatment plans, training others to implement components of treatment plans, and overseeing implementation of treatment plans.

105 MARK DR, Fairview Heights, IL 62208

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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 Nathan Kaag's NPI number?

The NPI number for Nathan Kaag is 1457268559. It was assigned to this individual provider in the NPPES registry on August 25, 2026.

Where is Nathan Kaag located?

Nathan Kaag practices at 105 Mark Dr, Fairview Heights, IL 62208. The listed phone number is (314) 277-6729.

What is Nathan Kaag's specialty?

The primary specialty registered for this NPI is Behavior Analyst with taxonomy code 103K00000X.

When was this NPI record last updated?

The NPPES record for Nathan Kaag was last updated on August 25, 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.