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

Individual provider Dentist · NPI 1184051211

Dr. John Katsis, DDS, MS is a Dentist in Bartlett, Illinois. Licensed in Illinois. Registered with an NPI since 2013.

Licensed in
IL
In the registry since
2013
Specialties on file
2
What do these letters mean?
DDS — Doctor of Dental Surgery
A dentist. DDS and DMD are the same qualification — universities choose which title to award.
MS — Master of Science
A graduate science degree.

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Practice location Address checks out

110 S Oak Ave
Bartlett, IL 60103
Phone: (630) 830-5550
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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 021.002547 (IL)
Dentist Taxonomy 122300000X · Licence 019028559 (IL)

Record details

NPI number1184051211
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS , MS
Sole proprietorNo
NPI enumeratedOctober 3, 2013
Last updated in NPPESOctober 3, 2013
Mailing address110 S. Oak Avenue, Bartlett, IL 60103

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