John Katsis Jr. D.D.S. – Orthodontics and Dentofacial Orthopedics Dentistry, NPI 1194194639

John Katsis Jr. D.D.S. is a healthcare provider. based in Bartlett, Illinois. specializing in Orthodontics and Dentofacial Orthopedics Dentistry. The organization holds a License No. 019016097 (IL). The NPI Number for John Katsis Jr. D.D.S. is 1194194639

Main info

Organization
Name
John Katsis Jr. D.D.S.
NPI
1194194639
Phone
(630) 894-5557
Address
110 S OAK AVE
Authorized Official
DR. JOHN KATSIS JR. ORTHODONTIST / OWNER D.D.S., M.S.
Enumeration Date
15 September 2015
Last Update Date
15 September 2015
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience34
Completeness80
Years active:10State licenses:1Digital endpointsUpdated within 12 months

Provider Addresses for John Katsis Jr. D.D.S.

  • 110 S OAK AVE

    BARTLETT, IL 601036621

    Phone: (630) 894-5557

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

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Medicare Enrollment & Revalidation

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Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

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Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 60103)

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Reviews

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Frequently asked questions

Can I use this page to confirm John Katsis Jr. D.D.S.'s NPI?
Yes. John Katsis Jr. D.D.S. is listed with NPI 1194194639 in the public NPI dataset.
Does CMS list John Katsis Jr. D.D.S. as active?
Yes — John Katsis Jr. D.D.S. is active in the NPI listing used on this page.
What healthcare role does John Katsis Jr. D.D.S. hold?
Scheduling teams often label John Katsis Jr. D.D.S. under Orthodontics and Dentofacial Orthopedics Dentistry. Clinical services aligned with this taxonomy classification.
What address line appears for John Katsis Jr. D.D.S.?
John Katsis Jr. D.D.S.'s geographic hint is Bartlett, Illinois in our summary view.
Is specialty guaranteed by NPI alone?
Taxonomy selections describe intent; scope of practice still follows state law.

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