Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

John Katsis DDS, Ltd

Organization Orthodontics and Dentofacial Orthopedics Dentistry · NPI 1194194639

John Katsis DDS, Ltd is an Orthodontics and Dentofacial Orthopedics Dentistry in Bartlett, Illinois. Licensed in Illinois. Registered with an NPI since 2015.

Licensed in
IL
In the registry since
2015
What do these letters mean?
Ltd — Limited
A form of business registration, not a clinical qualification.

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Practice location Address checks out

110 S Oak Ave
Bartlett, IL 60103-6621
Phone: (630) 894-5557
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Orthodontics and Dentofacial Orthopedics Dentistry (primary) Taxonomy 1223X0400X · Licence 019016097 (IL)

Record details

NPI number1194194639
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official John Katsis — Orthodontist / Owner · (630) 894-5557
Other names John Katsis Jr. D.D.S.
NPI enumeratedSeptember 15, 2015
Last updated in NPPESSeptember 15, 2015
Mailing address110 S Oak Ave, Bartlett, IL 60103-6621

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