Doctor profile · Federal record

Dr. John Katsis, D.D.S., M.S.

Orthodontics and Dentofacial Orthopedic Dentist · Dentist · Bartlett, IL

  • NPI 1184051211
  • 13 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
110 S. Oak Avenue
Bartlett, IL 60103
(630) 830-5550

Credentials & registration

NPPES · NUCC
NPI registered
October 2013 — 13 yrs on file
Specialty taxonomy
1223X0400X — NUCC code
State licenses (2)
Illinois #021.002547 · Illinois #019028559

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1184051211. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$24
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Envista Holdings Corporation 1 $23.84

By nature of payment

Food and Beverage
$24

Frequently asked questions

Auto-generated from federal data
What is Dr. John Katsis's medical specialty?
Dr. John Katsis practices Orthodontics and Dentofacial Orthopedic Dentist in Bartlett, IL.
Where does Dr. John Katsis practice?
Dr. John Katsis practices at 110 S. Oak Avenue, Bartlett, IL 60103. Office phone: 6308305550.
What is Dr. John Katsis's NPI?
Dr. John Katsis's National Provider Identifier (NPI) is 1184051211, issued by NPPES.