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Katsis Orthodontic Associates

Orthodontics and Dentofacial Orthopedics Dentistry in Bartlett, IL · enumerated 2015 · authorized official John Katsis, President / Orthodontist.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1588033013

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Registry record

Entity type Organization (Type 2)
Legal business name Katsis Orthodontic Associates
Practice address 110 S. Oak Avenue, Bartlett, IL, 60103
Phone (630) 894-5557
Enumeration date Sep 15, 2015
Last updated in NPPES Sep 15, 2015

Taxonomy & classification

1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers · License 019028559 (IL) Primary

Authorized official

Name John Katsis
Title President / Orthodontist
Phone (630) 894-5557

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty.

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Frequently asked questions

What type of organization is Katsis Orthodontic Associates?
Katsis Orthodontic Associates is registered in NPPES as a Orthodontics and Dentofacial Orthopedics Dentistry (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-09-15.